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Journal articles on the topic 'Adducts of Nickel(II)'

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Published: 5 June 2025

Last updated: 15 July 2025

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1

Suresh, T., S. Santosh Kumar, N. M. Kottureshawara, M. Revanasidappa, Syed Khasim, and Suresh. "Spectrophotometric Study of Nitrogen Base Adducts of Nickel(II)-4-methyl-8–quinolinate." E-Journal of Chemistry 5, no. 2 (2008): 404–8. http://dx.doi.org/10.1155/2008/989205.

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Adduct formation constants have been determined by spectrophotometric study of a few typical bases with nickel(II) chelate of 4-methyl-8-quinolinol in chloroform. Bathochromic and hypsochromic shifts were observed in the visible range due to the adduct formation. Monobasic bases like pyridine, methyl substituted anilines and such other bases exhibit 1: 2 stoichiometry giving hexa – coordinated adductds . The dibasic bases such as 1,10-phenanthroline and 2,9- neocuproine exhibit 1 : 1 stoichiometry giving hexacoordinated adducts . The experimental results are discussed in terms of the basicity and steric effects of the various bases.

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2

Youssef, Tamer E., and Michael Hanack. "Asymmetrically fused heterocyclic phthalocyaninato nickel(II) adducts: synthesis and characterization." Journal of Porphyrins and Phthalocyanines 09, no. 01 (2005): 28–31. http://dx.doi.org/10.1142/s108842460500006x.

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Reaction of the asymmetrically hexa(2-ethylhexyloxy) substituted nickel phthalocyanine PcNi 1 with the pyridine N-oxides 2a-c to afford the nickel phthalocyanine adducts 3a-c containing furopyridine-type ring is described. The adducts are formed via 1,3-cycloaddtion followed by 1,5-sigmatropic rearrangement.

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3

Omoregie, Helen Oluwatola. "Synthesis, Physicochemical Properties and Antimicrobial Activities of Nickel(II) Complexes of 4,4,4-Trifluoro-1-(2-Naphthyl)-1,3-Butanedione and Their Adducts." International Journal of Chemistry 10, no. 4 (2018): 1. http://dx.doi.org/10.5539/ijc.v10n4p1.

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Nickel(II) complex of 4,4,4-trifluoro-1-(2-Naphthyl)-1,3-butanedione(tfnb) and its 2,2&prime;-bipyridine (bipy), ethylenediamine (en) and 1,10-phenanthroline (phen) adducts were synthesized and characterized by elemental analysis, infrared, electronic spectral, magnetic susceptibility measurements and antimicrobial activities. Three other nickel(II) compounds were synthesized along with these compounds. The bands in the 1651-1513 cm-1 have been assigned as &nu;(C=O) + &nu;(C=C). The infrared and electronic spectral measurements are indicative of a probable six-coordinate octahedral geometry for all the nickel(II) complexes and adducts. The antimicrobial activity shows that [Ni(tfnb)2]2H2O complex and its adducts have no antibacterial and antifungal activities.

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4

Sharma, Mousami, Anju Sharma, and Renu Sachar. "Synthesis and Characterization of the Adducts of Morpholinedithioccarbamate Complexes of Oxovanadium (IV), Nickel(II), and Copper(II) with Piperidine and Morpholine." E-Journal of Chemistry 9, no. 4 (2012): 1929–40. http://dx.doi.org/10.1155/2012/689501.

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A series of 1:1 adducts of bis(morpholinedithiocarbamato) complex of VO(IV), 1:1 and 1:2 adducts of bis(morpholinedithiocarbamato) complexes of Ni(II) and Cu(II) with piperidine and morpholine have been synthesized and characterized by elemental analysis, molar conductance, magnetic susceptibility, IR, UV-Vis, and TGA/DTA techniques. Analytical data reveals that VO(IV) complex forms only 1:1 adducts with the formula [VO(morphdtc)2L].H2O while Ni(II) and Cu(II) complexes form both 1:1 and 1:2 adducts with 1:1 adducts having general formula Ni(morphdtc)2.L and Cu(morphdtc)2.L and 1:2 adducts having general formula Ni(morphdtc)2.L2and Cu(morphdtc)2.L2(morphdtc = morpholinedithiocarbamate, L = morpholine and piperidine). Antifungal activity of some complexes has been carried out against the fungal strainFusarium oxysporium. Thermal studies indicate a continuous weight loss. A square pyramidal geometry has been proposed for the 1:1 adducts of Ni(II) and Cu(II) complexes while an octahedral geometry has been proposed for the 1:1 adducts of VO(IV) and for the 1:2 adducts of Ni(II) and Cu(II) complexes.

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5

L., D. DAVE, and AMMA E. KOMALA. "Base Adducts of Cobalt(II) and Nickel(ll) Chelates with Some Schiff Bases." Journal of Indian Chemical Society Vol. 62, Mar 1985 (1985): 178–80. https://doi.org/10.5281/zenodo.6302932.

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University Department of Chemistry, Bhavnagar University, Bhavnagar-364 002 <em>Manuscript received 26 December 1983, revised 10 August 1984, accepted 19 January 1985</em> Base adducts of Co<sup>II</sup> and Ni<sup>II</sup> complexes of <em>N</em>,<em>N</em>'-ethylene-bis(2-OH-5-Me acetophenone/propiophenone) are synthesised .and characterised by elemental analyses, molar conductance, molecular weight, magnetic susceptibility, ir and uv spectra.

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6

A, K. BANERJEE, KUMAR GHOSH MOHIT, and K. ROY S. "Metal Complexes as Ligands : Polynuclear Alkali Metal Complexes with Nickel(II) Chelates." Journal of Indian Chemical Society Vol. 71, June-Aug 1994 (1994): 435–39. https://doi.org/10.5281/zenodo.5895637.

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Chemistry Department, Patna University, Patna-800 005 <em>Manusript received 18 November 1993</em> Some nickel(II) complexes with O-N donor ligands (salicylaldoxime, glycine and β-alanine) and having oxygen-bridges with polymeric structures, depolymerise under suitable conditions and break up into monomers. These monomers in situ, behave as a single and double faced bidentate oxygen donor Lewis bases, and combine with partially covalent bonded alkali metal cations, to form oxygen-bridged polynuclear complexes. The spectral and magnetic moment studies indicate that the polymerised nickel(n) ions are converted into tetrahedral ones in their alkali metal adducts. Nickel(II)-salicylaldoximate forms oxygen-donor live-membered stable chelate ring with alkali metal ions.

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7

Youssef, Tamer E., and Michael Hanack. "Synthesis and characterization of unsymmetrically substituted dienophilic nickel phthalocyanines for Diels-Alder reactions." Journal of Porphyrins and Phthalocyanines 06, no. 09 (2002): 571–77. http://dx.doi.org/10.1142/s1088424602000713.

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A general synthesis of unsymmetrically substituted dienophilic nickel phthalocyanines is described. The desired nickel phthalocyanine complexes [3,4,10,11,17,18-hexakis(2-ethyl-hexyloxy)tribenzo(b,g,i]-24,27-di-hydro-24,27-epoxynaphthalo[q]porphyrazinato]nickel(II) (4) and dodeca alkoxy-substituted PcNi (5) were synthesized using a statistical approach by the condensation of 1,2-dicyano-4,5-bis(2-ethylhexyloxy)benzene (1) or 1,2-dicyano-3,4,5,6-tetrakis(2-ethylhexyloxy)benzene (2) and 6,7-dicyano-1,4-dihydro-1,4-epoxy-1,4-dimethylnaphthalene (3) in the presence of nickel(II) acetate. Reaction of 4 or 5 with tetraphenyl-cyclopentadieneone (9) lead to the phthalocyanine-tetracyclone adducts 10 and 11, respectively, which are precursors for intermediate adducts 12 and 13 containing isobenzofuran moiety as diene subunits. The dimer 14 was synthesized from 4 and the isobenzofuran intermediate 12. Dehydrogenation of the Diels-Alder product 14 to the fully conjugated derivative 15 was carried out successfully with p-toluenesulfonic acid.

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8

T., Suresh, Nagesha Sastry D., Suresh, and Revana Siddappa M. "Spectrophotometric study of adduct of nickel(II) di(2-bromo-4- methylphenyl)carbazone with nitrogen bases." Journal of Indian Chemical Society Vol. 83, Nov 2006 (2006): 1077–79. https://doi.org/10.5281/zenodo.5832263.

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Department of Industrial Chemistry, Gulbarga University P.G. Centre, Cantonment. Bellary-583 104, Karnataka, India Department of Applied Sciences and Biotechnology, Bellary Engineering College. Bellary-583 104. Karnataka. India Department of Chemistry, G. M. Institute of Technology, Davangere-577 006. Karnataka, India <em>Manuscript received 15 June 2006. accepted 11 August 2006</em> The stability constants of the adducts formed between square planar nickel(II) chelate of di(2-bromo-4-methylphenyl)carbazone with nitrogen bases are obtained from spectrophotometric measurements in chloroform solution at room temperature. The monodentate bases form hexacoordinated adducts with 1 : 2 stoichiometry for metal chelate-base. Saturated nitrogen bases form pentacoordinated adducts. Variations in their slability of these adducts with the bases are attributed to changes in their donor power. Stability of these adducts are discussed in terms of steric hindrance, basicity and ring structure.

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9

KALPANA, DESAI, та T. THAKER B. "Synthesis and Characterisation of New Mixed Azomethyne Schiff Base Complexes of Cobalt(II), Nickel(II) and Copper(II) and their Pyridine Adducts involving , β-Diketones as Ligands". Journal of Indian Chemical Society Vol. 67, Aug 1990 (1990): 667–69. https://doi.org/10.5281/zenodo.6223961.

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Department of Chemistry, South Gujarat University, Surat-395 007 <em>Manuscript received </em>14 September  1989, revised 20 March 1990, accepted 10 April 1990 Synthesis and Characterisation of New Mixed Azomethyne Schiff Base Complexes of Cobalt(II), Nickel(II) and Copper(II) and their Pyridine Adducts involving ,<em> β</em>-Diketones as Ligands   

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10

Mikulski, Chester M., Scott Grossman, Monica L. Bayne, et al. "Theophylline Adducts with cobalt(II), Nickel(II) and Iron(III) Halides." Journal of Coordination Chemistry 22, no. 3 (1990): 175–82. http://dx.doi.org/10.1080/00958979009408213.

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11

Mikulski, Chester M., Scott Grossman, Monica L. Bayne, et al. "Cobalt(II), nickel(II) and iron(IlI) halide adducts with theobromine." Inorganica Chimica Acta 173, no. 1 (1990): 31–35. http://dx.doi.org/10.1016/s0020-1693(00)91051-x.

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12

Dunstan, P. O. "Thermochemistry of aniline-derivative adducts of nickel(II) acetylacetonate." Thermochimica Acta 333, no. 1 (1999): 5–11. http://dx.doi.org/10.1016/s0040-6031(99)00084-2.

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13

P., K. GOGOI, and DUTTA J.P. "Synthesis and Characterisation of some Substituted Imidazole Adducts of Bis[(p-chlorophenyl)dithiophosphinato]nickel(II)." Journal of Indian Chemical Society Vol. 74, Feb 1997 (1997): 137–38. https://doi.org/10.5281/zenodo.5875715.

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Department of Chemistry. Dibrugarh University. Dibrugarh-786 004 <em>Manuscript received 5 July 1994. revised 3 April 1995, accepted 6 July 1995</em> Synthesis and Characterisation of some Substituted Imidazole Adducts of Bis[(<em>p</em>-chlorophenyl)dithiophosphinato]nickel(II).

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14

(Miss), MINATI BARAL, K. KANUNGO B., and PRADHAN B. "Adducts of Nickel(II) with Salicylaldehyde Thiosemicarbazone and Monodentate Ligands." Journal of Indian Chemical Society Vol. 63, Dec 1986 (1986): 1018–20. https://doi.org/10.5281/zenodo.6274725.

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Department of Chemistry, Regional Engineering College, Rourkela-769 COB <em>Manuscript received 7 April 2986, revised 30 September 1986, accepted 13 November 1980</em> A series of complexes of the type Ni(stsc)L, where L=\(\gamma\)-picoline, isoquinoline, pyridine-<em>N</em>-oxide, thiourea, imidazole, and triphenylphosphine, have been isolated by the reaction of nickel(II) salt and the ligands in<em> </em>stoichiometric ratio. The compounds characterised on the basis of analytical, molar conductance, magnetic susceptibility, infrared and electronic spectral data and molecular weight measurements were found to be distorted tetrahedral. Some of them indicate the probability of being associated with a tetrahedral square\(\rightleftharpoons\)planar isomerism.

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15

Ageshina, A. A., M. A. Uvarova, and S. E. Nefedov. "Adducts of copper(II) and nickel(II) cimantrenates with methanol and acetonitrile." Russian Journal of Inorganic Chemistry 60, no. 9 (2015): 1085–92. http://dx.doi.org/10.1134/s0036023615090028.

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16

Tsay, Charlene, and Jonas C. Peters. "Thermally stable N2 and H2 adducts of cationic nickel(ii)." Chemical Science 3, no. 4 (2012): 1313. http://dx.doi.org/10.1039/c2sc01033j.

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17

Cacelli, Ivo, Laura Carbonaro, and Piero La Pegna. "Kinetics and Equilibria of Nickel(II)−Schiff Base Adducts Formation." European Journal of Inorganic Chemistry 2002, no. 7 (2002): 1703–10. http://dx.doi.org/10.1002/1099-0682(200207)2002:7<1703::aid-ejic1703>3.0.co;2-n.

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18

A., K. BANERJEE, SATYA PRAKASH SHEO, and K. ROY S. "Metal Complexes as Ligands. Polynuclear Alkali Metal Complexes with Diaquomonooxalato-nickel(ll) and -cobalt(ll)." Journal of Indian Chemical Society Vol. 62, Nov 1985 (1985): 818–20. https://doi.org/10.5281/zenodo.6324806.

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Chemistry Department, Patna University, Patna-800 005 Polymeric octahedral, diaquomonooxalato-nickel(II) and -cobalt(II) (Ni/Co(ox). 2H<sub>2</sub>O] have been used as 'metal complex ligands' in the synthesis of oxygen-bridged binuclear alkali metal complexes of the general formula [(M<sub>b</sub>L).M<sub>a</sub>ox.2H<sub>2</sub>O], <em>where </em>M<sub>b</sub> =Li, Na and K ; L=deprotonated organic acids ; M<sub>a</sub>= Ni or Co ; and ox=oxalate. In these binuclear alkali metal transition metal oxalates, the C=O frequencies have been observed only below 1 650 cm<sup>-1</sup> suggesting that all the oxalato groups present in the Ni/Co adducts are not normal/terminal ones ; most likely they are bridged ones. The electronic spectral and magnetic moment studies indicate that the polymerised octahedral Ni<sup>II</sup> and Co<sup>II</sup> ions are converted into tetrahedral ones in their alkali metal adducts.

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19

Weiß, Dana, Annette Schier, and Hubert Schmidbaur. "2-Diphenylphosphino-phenoI as a Ligand for Mono- and Poly-Nuclear Complexes of Manganese, Cobalt, Nickel, Zinc, and Cadmium." Zeitschrift für Naturforschung B 53, no. 11 (1998): 1307–12. http://dx.doi.org/10.1515/znb-1998-1112.

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2-Diphenylphosphino-phenol was chosen as an ambivalent (hard/soft) chelating ligand for biologically important first row transition metals. The expected mode of complexation is relevant to trapping of metal ions in humic acids and related environmental ion exchange systems with phenolate functions. The 1:2 complex with nickel(II) is known to have a standard mononuclear square-planar structure, and experimental evidence suggests that the new cobalt(II) complex is analogous. By contrast, zinc and cadmium were found to give novel trinulear complexes [M3(2- Ph2P-C6H4O)6], M = Zn, Cd. In a chain of three metal atoms, the octahedrally coordinated central atom resides on a center of inversion and is solely oxygen-bound [MO6], while the two peripheral metal atoms are in a mixed coordination environment [fac-MO3P3], The analogous manganese(II) complex crystallizes as a net trihydrate, where two different trinuclear units are present in the lattice. One is of a new type and represents a centrosymmetrical hexahydrate [Mn3(2-Ph2P-C6H4 0)6(OH2)6]. The central part is an octahedral [Mn(OH2)6]2+ dication, which is hydrogen-bonded to two [Mn(2 -Ph2P-C6H4O)3]- anions. The nickel(II) complex was found to form 1:1 adducts with ZnCl2 or ZnBr2. The two complexes are isomorphous. In the adduct structure the zinc atom is attached to the two oxygen atoms of the nickel compound leaving the remainder of the molecular geometry largely unchanged. Together with the two halogen atoms a tetrahedral environment [ZnO2X2] is formed (X = Cl, Br), while the nickel atom retains its square planar [NiO2P2] environment.

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20

Pervukhina, N. V., A. B. Burdukov, and V. I. Ovcharenko. "Crystal structure of nickel(II) and cobalt(II) adducts with 3-imidazoline nitroxide." Acta Crystallographica Section A Foundations of Crystallography 52, a1 (1996): C300. http://dx.doi.org/10.1107/s0108767396087521.

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21

Emori, Shuji, and Chiemi Shima. "Magnetic Properties of Cobalt(II) and Nickel(II) Benzoate Adducts with Quinoline Analogues." Bulletin of the Chemical Society of Japan 65, no. 7 (1992): 1982–84. http://dx.doi.org/10.1246/bcsj.65.1982.

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22

Richa, Kothari. "Synthesis of Nickel (II) Schiff Base Molecular Adducts: Spectroscopic Characterization & Antioxidant activity." American Journal of PharmTech Research 12, no. 06 (2022): 124–41. https://doi.org/10.5281/zenodo.7479291.

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ABSTRACT Transition metal complexes of Ni (II) with schiff base ligand (HL) derived from condensation of 3-Bromo benzaldehyde and hydrazine monohydrate were successfully synthesized , characterized and isolated .The schiff base ligand and its Ni(II) complexes prepared were characterized by melting  point /decomposition temperature, solubility, conductivity/ Molar conductance, UV- visible, FT-IR, XRD, TGA and elemental analysis results. In the UV-Vis study, a bathochromic shift of approximately 60 nm indicating the formation of coordinated Ni(II) complexes by more than one coordinating sites . IR spectra of the free ligand  showed a band at 1660cm<sup>-1 </sup>which is assigned to the (-C=N-) stretching vibration of the azomethine functional group. These bands were observed at lower frequencies in the spectra of Ni(II) complexes which indicates complexation process between schiff base ligand  and Ni<sup>2+</sup> ion . Low conductance (7-9 ohm<sup>-1</sup> cm<sup>2</sup> Mol<sup>-1</sup>) measurement indicated that the Ni (II) complexes are non electrolytic in nature whereas elemental analysis result revealed 1:1 Nickel-schiff base ratio. TGA analysis showed the presence of two coordinated water molecules on the basis of physico chemical measurements the following empirical formulas have been assigned to coordinated Ni(II) complex : [ Ni(HL)<sub>2</sub> ] 2Cl. 2H<sub>2</sub>O, [ Ni(HL)<sub>2</sub> ] SO<sub>4</sub> .2H<sub>2</sub>O. The antioxidant activities of schiff base ligand and Ni(II) complexes were evaluated by using DPPH reagent ie, 2<sub>,</sub> 2<sup>’</sup>- diphenyl -1-picrylhydrazyl free radical assay which showed that coordinated Ni(II) complexes have a higher antioxidant activities than that of Schiff base ligand. All compounds have been evaluated for invitro anti microbial activities against isolated bacterial strains of  E. coli (MTCC-1687), E. faecalis (MTCC-439), S. aureus (MTCC-737) and MR S. aureus (Indigenous) .All compounds showed mild to moderate antibacterial activities. The minimum inhibitory concentration values ranged from 50 g/ml to 3.125 g/ml. All compounds displayed invitro anti bacterial activity against both gram positive and gram negative bacterial strains. It may be proved that the antibacterial activity of compounds is related to the cell wall structure of the tested bacterial stain. The synthesis of Ni(II) complexes via template method is a good method for obtaining very efficient bioactive agents as a good drug candidates for various biological applications in future for humans. As well as schiff base molecular adducts of Ni(II) complexes are also promising material in different cutting edge research areas like applications in preparation of solar cells, super capacitors, catalysts and electrode materials. <strong>Keywords</strong>: Schiff base ligands, Ni(II) complexes, Spectroscopic analysis, antioxidant activities, Antimicrobial activities, DPPH, 3-Bromobenzaldelyde

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23

Constable, Edwin C., David Phillips, and Paul R. Raithby. "Nickel(II) chloride adducts of 4′-phenyl-2,2′:6′,2″-terpyridine." Inorganic Chemistry Communications 5, no. 7 (2002): 519–21. http://dx.doi.org/10.1016/s1387-7003(02)00461-6.

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24

Dunstan, P. O. "Thermochemistry of adducts of nickel(II) acetylacetonate chelate with heterocyclic bases." Thermochimica Acta 317, no. 2 (1998): 165–74. http://dx.doi.org/10.1016/s0040-6031(98)00382-7.

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25

Liu, Winnie S., Roger K. Bunting, and Douglas X. West. "Heterocyclic amine adducts of bis(2-thiopyridine N-oxide)nickel(II)." Inorganica Chimica Acta 105, no. 3 (1985): 177–80. http://dx.doi.org/10.1016/s0020-1693(00)85225-1.

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26

Singh, Baljit, and Shavina Shavina. "Direct Electrochemical Synthesis of Nickel (II) Thiolates and their Coordination Complexes." JOURNAL OF ADVANCES IN CHEMISTRY 11, no. 9 (2015): 3973–78. http://dx.doi.org/10.24297/jac.v11i9.2688.

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Metallo organic compounds can be synthesized electrochemically by anodic generation of metal cations by using sacrificial metal anode. Bis-thiolates complexes of Nickel, Ni(SR)2 have been prepared in an H-type cell by electrochemical oxidation of thiols RSH (ethanethiol, 2-propanethiol, 1-butanethiol, 1-pentanethiol and thiophenol) with sacrificial Nickel (Ni) anode and inert Platinum (Pt) cathode in non-aqueous solution of acetonitrile containing tetrabutylammonium chloride (as supporting electrolyte). On refluxing with ligand (L) 2,2'-bipyridyl, these thiolates do not form coordination compounds. However, their adducts Ni(SR)2.L have been synthesized electrochemically by adding the ligand to above thiols in solution phase. All these synthesized complexes have been characterized by elemental analysis, infrared spectral data and other physical measurements. All these compounds are in the solid state with excellent yield and associated with high electrochemical efficiency.

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27

N., SHASHIKALA, GAYATHRI V., M. NANJE GOWDA N, and K. N. REDDY G. "Reactions of 2,6-Bis(2-benzimidazyl)pyridine with some Acids and Cobalt(II) and Nickel(II) Salts." Journal Of India Chemical Society Vol.66, Aug-Oct 1989 (1989): 537–40. https://doi.org/10.5281/zenodo.5994974.

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Department of Chemistry, Central College, Bangalore University, Bangalore--560 001 2,6-Bis(2-benzimidazyl)pyridine (bBz1H<sub>2</sub>Py) reacts with aqueous hydrohalic and perchloric acids to give adducts of the type bBz1H<sub>2</sub>Py.HX (X=CI, Br, I or CI<sub>O4</sub> ). The <em>N</em>·heterocycle also reacts with the salts of cobalt( II) and nickel(II) to yield complexes of the types MX<sub>2</sub>(bBzIH<sub>2</sub>Py) (M=Co; X=CI, Br or I; and M=Ni; X=CI or Br) and MX,(bBzIH<sub>2</sub>Py),.nH<sub>2</sub>O (M=Co; X=CI, Dr or I; n=:Z; and M=Ni; X=CI, Dr or I ; n= 1 ; X=ClO<sub>4</sub> ; n=O). lr and electronic spectral studies and magnetic susceptibilily measurements, suggest that the monoheterocycle complexes possess a distorted trigonal bipyramidal geometry, whereas the biheterocycle complexes have a square-pyramidal (for cobalt) or octahedral (for nickel) structures.

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28

S., S. SANDHU, and S. AULAK NIRMAL. "Preparation and Characterisation of Nickel(II) and Chromium(III) Complexes with N-Acylamino Acids and their Adducts." Journal of Indian Chemical Society Vol. 68, Jan 1991 (1991): 29–33. https://doi.org/10.5281/zenodo.5947226.

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Department of Chemistry, Gut u Nauak Dev University, Amritsar-143 005 <em>Manuscript received 29 June 7989, revised 76 November 1990, accepted 28 November 1990</em> Complexes of the type<strong> </strong>NiL<sub>2</sub>XH<sub>2</sub>O, adducts of the type NiL<sub>2</sub>B<sub>n</sub>XH<sub>2</sub>O.<strong> \(Cr_2^{IIII}\)</strong>L<sub>4</sub>OH<sub>2</sub>XH<sub>2</sub>O<strong> </strong>and<strong> \(Cr_2^{IIII}\) </strong>L<sub>6</sub>XH<sub>2</sub>O (LH=<em>N</em>-formyl. <em>N</em>-acetyl. monochloroacetyl trifluoroacetyl-L-phenylalanine <em>N</em>-benzoyl monochloroacetyl, trichloroacetyl, trifluo roacetyl-DL-alanine <em>N</em>-benzoylglycine and <em>N</em>-benzoyi-L-Ieueine. B=imidazole. 2-methylimidazole and 1,2-dimethylimidazole n=2: X=0-6) have been prepared and characterised with the help of various physical and spectroscopic techniques.

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29

Greig, Neil, Susan Wyllie, Tim J. Vickers, and Alan H. Fairlamb. "Trypanothione-dependent glyoxalase I in Trypanosoma cruzi." Biochemical Journal 400, no. 2 (2006): 217–23. http://dx.doi.org/10.1042/bj20060882.

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The glyoxalase system, comprizing glyoxalase I and glyoxalase II, is a ubiquitous pathway that detoxifies highly reactive aldehydes, such as methylglyoxal, using glutathione as a cofactor. Recent studies of Leishmania major glyoxalase I and Trypanosoma brucei glyoxalase II have revealed a unique dependence upon the trypanosomatid thiol trypanothione as a cofactor. This difference suggests that the trypanothione-dependent glyoxalase system may be an attractive target for rational drug design against the trypanosomatid parasites. Here we describe the cloning, expression and kinetic characterization of glyoxalase I from Trypanosoma cruzi. Like L. major glyoxalase I, recombinant T. cruzi glyoxalase I showed a preference for nickel as its metal cofactor. In contrast with the L. major enzyme, T. cruzi glyoxalase I was far less fast-idious in its choice of metal cofactor efficiently utilizing cobalt, manganese and zinc. T. cruzi glyoxalase I isomerized hemithio-acetal adducts of trypanothione more than 2400 times more efficiently than glutathione adducts, with the methylglyoxal adducts 2–3-fold better substrates than the equivalent phenylglyoxal adducts. However, glutathionylspermidine hemithioacetal adducts were most efficiently isomerized and the glutathionylspermidine-based inhibitor S-4-bromobenzylglutathionylspermidine was found to be a potent linear competitive inhibitor of the T. cruzi enzyme with a Ki of 5.4±0.6 μM. Prediction algorithms, combined with subcellular fractionation, suggest that T. cruzi glyoxalase I localizes not only to the cytosol but also the mitochondria of T. cruzi epimastigotes. The contrasting substrate specificities of human and trypanosomatid glyoxalase enzymes, confirmed in the present study, suggest that the glyoxalase system may be an attractive target for anti-trypanosomal chemotherapy.

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30

Benelli, Cristiano, Andrea Dei, Dante Gatteschi, and Luca Pardi. "Electronic structure and reactivity of dioxolene adducts of nickel(II) and copper(II) triazamacrocyclic complexes." Inorganic Chemistry 29, no. 18 (1990): 3409–15. http://dx.doi.org/10.1021/ic00343a027.

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31

S., S. SANDHU, and SINGH AULAKH NIRMAL. "Preparation and Characterisation of Nickel(II) and Chromium(III) Complexes with N-Acylamino Acids and their Adducts." Journal Of India Chemical Society Vol.66, Aug-Oct 1989 (1989): 530–36. https://doi.org/10.5281/zenodo.5994646.

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Department of Chemistry, Guru Nanak Dev University, Amritsar-143 005 Complexes of the type NiL<sub>2</sub> XH<sub>2</sub>O<sub>1</sub> adducts of the type NiL<sub>2</sub>B<sub>n</sub>XH<sub>2</sub>O, Cr<sub>2</sub>(III)l<sub>4</sub>OH<sub>2</sub>XH<sub>2</sub>O and Cr<sub>2</sub>(III)L<sub>6</sub>XH<sub>2</sub>O (LH=<em>N</em>-formyl, <em>N</em>-acetyl, monochloroacetyl, triftuoroacetyl-DL-Phenylalanlne, <em>N</em>-benzoyl, monochloroacetyl, trichloroacet)l, trlfluoroacetyl-DL-alaoine, <em>N</em>-benzo.ylglydne and <em>N</em>-benzoyi-j-Ieucine; B=imidazole, 2-methylimidazole and 1,2-dimethylimldazoJe ; n=2; and X =0-6) have been prepared and characterised with the help of various physical and Spectroscopic techniques. The molar conductance values of nickel(II) adducts are in the range for two ion electrolytes while chromium(III) complexes are non-electrolytes in methanol. Electronic absorption spectra and magnetic moment values show an octahedral geometry for nickel(II) and chromium( III) complexes. The coordination or carboxylate group to metal ion is bidentate as indicated by the ir spectra, The isotropic value of <em>g</em> in chromium(III) complexes indicate an octahedral geometry and polymeric nature.

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32

Zahra, Asadi, Asadi Mozaffar, and Khoshkharam Soror. "Thermodynamic studies of adduct formation reactions between organotin(IV)dichlorides and NiII macrocycles." Journal of Indian Chemical Society Vol. 91, May 2014 (2014): 813–22. https://doi.org/10.5281/zenodo.5719986.

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Chemistry Department, College of Sciences, Shiraz University, Shiraz, I.R. Iran <em>E-mail</em> : zasadi@susc.ac.ir, zasadi@shirazu.ac.ir Fax : 98-711-2286008 <em>Manuscript received online 15 October 2013, revised 17 October 2013, accepted 24 October 2013</em> This article presents σ-acceptor strength for the diorganotin(IV)dichlorides : dimethyltindichloride, diphenyltindichloride and dibutyltindichloride as Lewis acids toward some macrocyclic nickel(II) complexes. Thermodynamic of the adducts formation of the tin(IV)dichlorides with Ni(II)tetraaza Schiff base complexes such as : [Ni(Me<sub>4</sub> -Bzo2 [14]- tetraeneN<sub>4</sub><strong> </strong>)], [Ni(Me<sub>4</sub> -4-CH<sub>3</sub>Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub><strong> </strong>)], [Ni(Me<sub>4</sub> -4-ClBzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )] and [Ni(Me<sub>2</sub>Ph<sub>2</sub> -Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )], [Ni(Me<sub>2</sub>Ph<sub>2</sub> -4-CH<sub>3</sub>Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )], [Ni(Me<sub>2</sub>Ph<sub>2</sub> -4-ClBzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )] that Me<sub>4</sub> -Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub><strong> </strong>denotes : (5,7,12,14-tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclo-tetradecine), was studied in acetonitrile by means of UV-Vis spectrophotometric analysis. The thermodynamic parameters and the formation constant values show the acidity trend for diorganotin(IV)dichlorides as follow : Ph<sub>2</sub> SnCl<sub>2</sub> > Me<sub>2</sub> SnCl<sub>2</sub> > Bu<sub>2</sub> SnCl<sub>2</sub> . Adducts have been synthesized and fully characterized by <sup>1</sup>H NMR, <sup>119</sup>Sn NMR, IR, UV-Vis spectra and elemental microanalysis (C.H.N) methods. The trend of the adduct formation of the nickel complexes with a given tin acceptor decrease as follow : [Ni(Me<sub>4</sub> -4- CH<sub>3</sub>Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )] > [Ni(Me<sub>4</sub> -Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )] > [Ni(Me<sub>4</sub> -4-ClBzo<sub>2</sub> [14]tetraeneN<sub>4</sub><strong> </strong>)] > [Ni(Me<sub>2</sub>Ph<sub>2</sub> -4- CH<sub>3</sub>Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )] > [Ni(Me<sub>2</sub>Ph<sub>2</sub> -Bzo<sub>2</sub> [14]tetraeneN<sub>4</sub> )] > [Ni(Me<sub>2</sub>Ph<sub>2</sub> -4-ClBzo<sub>2 </sub>[14]tetraeneN<sub>4</sub> )].

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33

Babu, Surendra, Pitchika Krishna, Hussain Reddy, and G. H. Philip. "Synthesis, characterization and DNA cleavage activity of nickel(II) adducts with aromatic heterocyclic bases." Journal of the Serbian Chemical Society 75, no. 1 (2010): 61–74. http://dx.doi.org/10.2298/jsc1001061b.

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Mixed ligand complexes of nickel(II) with 2,4-dihydroxyacetophenone oxime (DAPO) and 2,4-dihydroxybenzophenone oxime (DBPO) as primary ligands, and pyridine (Py) and imidazole (Im) as secondary ligands were synthesized and characterized by molar conductivity, magnetic moments measurements, as well as by electronic, IR, and 1H-NMR spectroscopy. Electrochemical studies were performed by cyclic voltammetry. The active signals are assignable to the NiIII/II and NiII/I redox couples. The binding interactions between the metal complexes and calf thymus DNA were investigated by absorption and thermal denaturation. The cleavage activity of the complexes was determined using double-stranded pBR322 circular plasmid DNA by gel electrophoresis. All complexes showed increased nuclease activity in the presence of the oxidant H2O2. The nuclease activities of mixed ligand complexes were compared with those of the parent copper(II) complexes.

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34

de, Farias, and Claudio Airoldi. "Molybdenum(V), germanium(IV), aluminum(III) and nickel(II) adducts with ethyleneurea, ethylenethiourea and propyleneurea: Some empirical correlations involving TG and IR data." Journal of the Serbian Chemical Society 71, no. 3 (2006): 263–68. http://dx.doi.org/10.2298/jsc0603263f.

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The adducts MoCl5 .2eu, MoCl5 .2pu, GeCl4 .2etu, AlCl3 .2pu, AlCl3 .3pu, NiCl2 .2etu and NiCl2 .4etu (eu = ethyleneurea, etu = ethylenethiourea and pu = propyleneurea) were synthesized and characterized by elemental analysis (C, H, N), infrared spectroscopy (IR) and thermogravimetry (TG). IR Results show that eu and pu coordinate through oxygen, whereas etu coordinates through nitrogen. For all investigated adducts, a single mass loss step associated with the release of ligand molecules is observed. Empirical correlations involving TG and IR data are established.

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35

Chadha, Raj K., Rajesh Kumar, Jaime Romero Lopez-Grado, and Dennis G. Tuck. "The direct electrochemical synthesis of thiolato complexes of cobalt and nickel, and the crystal structure of bis(phenylthiolato)bis(1,10-phenanthroline)cobalt(III) perchlorate." Canadian Journal of Chemistry 66, no. 9 (1988): 2151–56. http://dx.doi.org/10.1139/v88-341.

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Cobalt(II) and nickel(II) thiolates, M(SR)2, can be prepared in high yield by the electrochemical oxidation of a metal anode in an acetonitrile or acetone solution of RSH (R = C6H5, o-CH3C6H4, 2-C10H7, 2,3,4,5-C6F4H; not all combinations). When 2,2-bipyridine or 1,10-phenanthroline (=L) is added to the electrolyte phase, the products are the adducts M(SR)2L2. In the case of Co(SC6H5)2(phen)2, aerial oxidation leads to the formation of the cobalt(III) cation [Co(SC6H5)2(phen)2]+, isolated as the perchlorate salt. X-ray crystallographic analysis showed that this cation has a cis-CoS2(N2)2 kernel.

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36

Atakol, Orhan, Adnan Kenar, and Mehmet Kabak. "Some complexes of Nickel(II) with Ono Type Schiff Bases and their Monoligand Adducts. Part II." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 27, no. 1 (1997): 29–40. http://dx.doi.org/10.1080/00945719708000179.

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37

Logvinenko, V. A., N. E. Fedotova, I. K. Igumenov та G. V. Gavrilova. "Study of the thermal dissociation of processes of nickel(II) and cobalt(II) β-diketonate adducts". Journal of Thermal Analysis 34, № 1 (1988): 259–68. http://dx.doi.org/10.1007/bf01913392.

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38

Moratal, José M., María-José Martínez-Ferrer, Antonio Donaire, Josep Castells, Jesús Salgado, and Hermas R. Jiménez. "Spectroscopic studies of nickel(II) carbonic anhydrase and its adducts with inorganic anions." J. Chem. Soc., Dalton Trans., no. 12 (1991): 3393–99. http://dx.doi.org/10.1039/dt9910003393.

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39

Kremer, Marius, and Ulli Englert. "Zn and Ni complexes of pyridine-2,6-dicarboxylates: crystal field stabilization matters!" Acta Crystallographica Section E Crystallographic Communications 75, no. 6 (2019): 903–11. http://dx.doi.org/10.1107/s2056989019007461.

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Six reaction products of ZnII and NiII with pyridine-2,6-dicarboxylic acid (H2Lig1), 4-chloropyridine-2,6-dicarboxylic acid (H2Lig2) and 4-hydroxypyridine-2,6-dicarboxylic acid (H2Lig3) are used to pinpoint the structural consequences of crystal field stabilization by an incomplete d shell. The pseudo-octahedral ZnII coordination sphere in bis(6-carboxypicolinato)zinc(II) trihydrate, [Zn(C7H4NO4)2]·3H2O or [Zn(HLig1)2]·3H2O, (1), is significantly less regular than that about NiII in the isostructural compound bis(6-carboxypicolinato)nickel(II) trihydrate, [Ni(C7H4NO4)2]·3H2O or [Ni(HLig1)2]·3H2O, (2). The ZnII complexes poly[(4-chloropyridine-2,6-dicarboxylato)zinc(II)], [Zn(C7H2ClNO4)] n or [Zn(Lig2)] n , (3), and poly[[(4-hydroxypyridine-2,6-dicarboxylato)zinc(II)] monohydrate], {[Zn(C7H3NO5)]·H2O} n or {[Zn(Lig3)]·H2O} n , (4), represent two-dimensional coordination polymers with chelating and bridging pyridine-2,6-dicarboxylate ligands in which the coordination polyhedra about the central cations cannot be associated with any regular shape; their coordination environments range between trigonal–bipyramidal and square-pyramidal geometries. In contrast, the corresponding adducts of the diprotonated ligands to NiII, namely triaqua(4-chloropyridine-2,6-dicarboxylato)nickel(II), [Ni(C7H2ClNO4)(H2O)3] or [NiLig2(OH2)3)], (5), and triaqua(4-hydroxypyridine-2,6-dicarboxylato)nickel(II) 1.7-hydrate, [Ni(C7H3NO5)(H2O)3]·1.7H2O or [NiLig3(OH2)3)]·1.7H2O, (6), feature rather regular octahedral coordination spheres about the transition-metal cations, thus precluding the formation of analogous extended structures.

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40

Chen, Dian, Ramunas J. Motekaitis, and Arthur E. Martell. "Dioxygen adducts of nickel(II) and cobalt(II) dioxopentaazamacrocyclic complexes: kinetics, stabilities, and hydroxylation of the ligands in the nickel dioxygen complexes." Inorganic Chemistry 30, no. 6 (1991): 1396–402. http://dx.doi.org/10.1021/ic00006a043.

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41

Nguyen, Dao Hinh, Hua-Fen Hsu, Michelle Millar, et al. "Nickel(II) Thiolate Complex with Carbon Monoxide and Its Fe(II) Analog: Synthetic Models for CO Adducts of Nickel−Iron-Containing Enzymes." Journal of the American Chemical Society 118, no. 37 (1996): 8963–64. http://dx.doi.org/10.1021/ja961968r.

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42

Benelli, Cristiano, Andrea Dei, Dante Gatteschi, and Luca Pardi. "Electronic and CD spectra of catecholate and semiquinonate adducts of zinc(II) and nickel(II) tetraazamacrocyclic complexes." Inorganic Chemistry 28, no. 8 (1989): 1476–80. http://dx.doi.org/10.1021/ic00307a012.

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43

Zukerman-Schpector, J., Antonio Carlos Trindade, and P. O. Dunstan. "Adducts of nickel(II) acetylacetonate chelating with heterocyclic bases: 3-cyanopyridine and 4-cyanopyridine." Acta Crystallographica Section C Crystal Structure Communications 56, no. 7 (2000): 763–65. http://dx.doi.org/10.1107/s0108270100004662.

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44

Chakrabarti, S., P. C. Mandal, and S. N. Bhattacharyya. "Reactions of Ni(II) and its complexes with free radicals derived from thymine." Canadian Journal of Chemistry 71, no. 3 (1993): 307–12. http://dx.doi.org/10.1139/v93-045.

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The effects of nickel (II) ions and its complexes on the products arising from the γ-radiolysis of thymine were studied. The decomposition of the pyrimidine base and formation of different radiolytic products indicate that nickel(II) ions or its complexes have little effect on the radiosensitivity of thymine. The transient hydroxyl adduct of thymine reacts with Ni(II) with the formation of a complex having a nickel–carbon bond. The rate constants for the reactions are of the order of 106 dm3 mol−1 s−1. Possible mechanisms for the formation of different products in the radiolysis of thymine in the presence of nickel(II) compounds are discussed.

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45

Kunkely, Horst, and Arnd Vogler. "Excited state properties of norbornadiene adducts of nickel(II), palladium(II) and platinum(II) bis-1,2-diphenyl-1,2-dithiolene complexes." Inorganica Chimica Acta 319, no. 1-2 (2001): 183–86. http://dx.doi.org/10.1016/s0020-1693(01)00467-4.

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46

Bajia, Subhash C., Anurag Mishra, and Ray J. Butcher. "Synthesis and characterization of bis(O,O′-diisopropylmonothiophosphato)nickel(II) adducts and molecular structures of bis(pyridine)bis(O,O′-diisopropylmonothiophosphato)nickel(II) complex." Transition Metal Chemistry 36, no. 3 (2011): 325–29. http://dx.doi.org/10.1007/s11243-011-9474-2.

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47

Alam, Naveed, Michael S. Hill, Gabriele Kociok-Köhn, Matthias Zeller, Muhammad Mazhar, and Kieran C. Molloy. "Pyridine Adducts of Nickel(II) Xanthates as Single-Source Precursors for the Aerosol-Assisted Chemical Vapor Deposition of Nickel Sulfide." Chemistry of Materials 20, no. 19 (2008): 6157–62. http://dx.doi.org/10.1021/cm801330v.

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48

Polyakov, Valery R., and Marian Czerwinski. "Hydrogen-Bonding in Ethanol Adducts to Bis(3-R-penta-2,4-dionato)Nickel(II) Species." Inorganic Chemistry 40, no. 18 (2001): 4798–802. http://dx.doi.org/10.1021/ic991284v.

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49

Mishra, Lallan, Kaushal Kumar Upadhyay, and Vinod Kumar Singh. "Synthetic, Spectroscopic and Antifungal Studies of Cobalt(II), Nickel(II), Copper(II) and Zinc(II) Cowlexes Derived from Tetradentate Thioiminato Schiff Base Ligands and Some Nitrogsnous Base Adducts of Nickel(II) Complexes." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 23, no. 10 (1993): 1767–80. http://dx.doi.org/10.1080/15533179308016721.

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50

Rodgers, Ryan P., Christopher L. Hendrickson, Mark R. Emmett, Alan G. Marshall, Mark Greaney, and Kuangnan Qian. "Molecular characterization of petroporphyrins in crude oil by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry." Canadian Journal of Chemistry 79, no. 5-6 (2001): 546–51. http://dx.doi.org/10.1139/v00-153.

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Petroporphyrin compositional analysis of a heavy crude oil has been realized by isolation and subsequent ESI-FT-ICR mass spectrometric analysis of the porphyrin-containing fractions. Vanadium octaethyl (V=O(II)OEP) and nickel octaethyl (Ni(II)OEP) porphyrin standards were analyzed to determine favorable electrospray ionization conditions and provide insight as to the molecular species present (e.g., adducts, multimers). Standard V=O(II)OEP and Ni(II)OEP solutions revealed the presence of both monomer and dimer species with a greater relative abundance of monomers. In contrast, mass spectral analysis of a porphyrin fraction from Cerro Negro crude oil was dominated by dimeric species. MS3 analysis identified a dioctylphthalate (DOP) contaminant, likely introduced during fractionation of the crude oil. DOP-porphyrin complexes and porphyrin-porphyrin dimers were then identified. Infrared multiphoton dissociation (IRMPD) of dimeric species produced the corresponding monomers with minimal fragmentation. The monomeric petroporphyrins were analyzed to reveal the metal (Ni(II) or V=O(II)), porphyrin type (e.g., etio vs. DPEP), and distribution of alkylation.Key words: petroporphyrin, porphyrin, petroleum, electrospray ionization, mass spectrometry, Fourier transform, ion cyclotron resonance, ICR, FT-ICR, FTMS.

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