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Journal articles on the topic 'Mononegation'

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1

Horodilova, T. "NEGATIVE CONSTRUCTIONS IN THE HISTORY OF GERMAN: THE CASE OF MULTIPLE NEGATION." Вісник Житомирського державного університету імені Івана Франка. Філологічні науки, no. 1(96) (September 6, 2022): 75–86. http://dx.doi.org/10.35433/philology.1(96).2022.75-86.

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This paper discusses the evolutionary path of sentence negation development in the history of the German language. The peculiarities of means of multiple negation realization in the studied periods of the language development have been analyzed, taking into account changes in the paradigm of negative markers of Old, Middle, and Early New High German. In terms of polynegation, the attention has been focused on the negative concord, accompanied by a preverbal marker and an additional negative adverb or pronoun. It has been found that the implementation of the negative concord involves a single s
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2

Balk, P., S. de Bruijn, and G. J. Hoijtink. "Electronic spectra of alternant hydrocarbon mononegative ions." Recueil des Travaux Chimiques des Pays-Bas 76, no. 11 (2010): 907–18. http://dx.doi.org/10.1002/recl.19570761106.

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3

MAHMOUD, A. S. MONSHI. "Transition Metal Complexes of 5-[ 4' -(Nitrophenyl)azo]salicylaldehyde-3-thiosemicarbazone." Journal of Indian Chemical Society Vol. 75, Mar 1998 (1998): 158–59. https://doi.org/10.5281/zenodo.5915665.

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Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh-11451, Saudi Arabia <em>Manuscript received 25 September 1996, revised 2 June 1997, accepted 12 June 1997</em> Metal complexes formed by the interaction of 5-[4&#39;-(nitrophenyl)azo]salicylaldehyde-3-thiosemicarbazone [HAT] with some bivalent metal ion have been prepared. The ligand behaves as neutral bidentate, as mononegative bidentate or tridentate ligand.
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4

Dhar, M. L., and Onkar Singh. "Nature and Composition of Fe(III) Complexes with Some Polyphenolic Ligands." Zeitschrift für Naturforschung B 41, no. 1 (1986): 82–84. http://dx.doi.org/10.1515/znb-1986-0117.

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The chelated complexes of Fe(III) of the type FeL3 [where L is the mononegative anion of phloroacetophenone (PHA); 2.4-dimethoxyphloroacetophenone (DMPHA); 4-benzvloxyres-acetophenone (BRP); 2,6-dihydroxyphenylbenzylketone (DHPBK); 2,4,6-trihydroxyphenyl-4′-methoxybenzylketone (THPBK); 2-hydroxy-4,6-dibenzyloxyphenyl-3′,4′-dioxymethylenebenzyl- ketone (HBMK); 2-hydroxy-3-prenyl-4′,6′-dibenzyloxyphenyl-3′,4′-dioxymethylenebenzyl- ketone (HPBMK); naringenin (NG); 2-methyl-5,7-dihydroxychromone (MDHC) and methyl-β-resorcylate (MR)] have been prepared and characterized by elemental, magnetic, infr
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5

Dar, Ajmar, Karen Moss, Stephanie M. Cottrill, et al. "Complexes of gold(III) with mononegative bidentate N,O-ligands." Journal of the Chemical Society, Dalton Transactions, no. 12 (1992): 1907. http://dx.doi.org/10.1039/dt9920001907.

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6

Maubert, Beatrice M., Jane Nelson, Vickie McKee, Raewyn M. Town, and Ibolya Pál. "Selectivity for dinegative versus mononegative oxoanionic guests within a cryptand host." Journal of the Chemical Society, Dalton Transactions, no. 9 (2001): 1395–97. http://dx.doi.org/10.1039/b101832i.

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7

Kadir, Faraidoon Karim, Mustaffa Shamsuddin та Mohd Mustaqim Rosli. "Crystal structure of bis(acetophenone 4-benzoylthiosemicarbazonato-κ2N1,S)nickel(II)". Acta Crystallographica Section E Crystallographic Communications 72, № 5 (2016): 760–63. http://dx.doi.org/10.1107/s2056989016006873.

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In the asymmetric unit of the title complex, [Ni(C16H14N3OS)2], the nickel ion is tetracoordinated in a distorted square-planar geometry by two independent molecules of the ligand which act as mononegative bidentateN,S-donors and form two five-membered chelate rings. The ligands are intrans(E) conformations with respect to the C=N bonds. The close approach of hydrogen atoms to the Ni2+atom suggests anagostic interactions (Ni...H—C) are present. The crystal structure is built up by a network of two C—H...O interactions. One of the interactions forms inversion dimers and the other links the mole
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8

(Miss), Shailey Gupta, and N. Ansari M. "Complexing behavior of 2-amino-4-benzamidothiosemicarbazide towards some 3d-metals." Journal of Indian Chemical Society Vol. 80, Oct 2003 (2003): 907–8. https://doi.org/10.5281/zenodo.5839328.

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Department of Chemistry, S. D. (P. G.) College, Muzaffarnagar-251 001, India <em>Fax ; </em>91-0131-2602354 <em>Manuscript received 15 March 2002, revised 1 April 2003, accepted 13 June 2003</em> Some new complexes of Mn<sup>II</sup>, Fe<sup>lII</sup>, Co<sup>II</sup>, Ni<sup>II</sup> and Cu<sup>II</sup> have been synthesized with 2-amino-4-benzamidothiosemicarbazide. All the complexes have 1 : 2 metal-ligand ratio with non-ionic nature except the Fe<sup>III</sup> complex, which is 1 : 1 electrolyte. All are found to be paramagnetic high spin complexes with octahedral geometry involving <em>sp
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9

Haritosh, Mishra, та Mukherjee Rabindranath. "Half-sandwich η6 -benzene ruthenium(II) complexes of phenolate-based 2-(pyridyl)alkylamine and bis-pyrazole ligands: Synthesis, spectra, structure and non-covalent interactions". Journal of Indian Chemical Society Vol. 95, July 2018 (2018): 697–706. https://doi.org/10.5281/zenodo.5643019.

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Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, Uttar Pradesh, India E-mail: rnm@iitk.ac.in Manuscript received 01 July 2018, accepted 09 July 2018 Two new half-sandwich complexes [(&eta;<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)Ru<sup>II</sup>(L<sup>6</sup>)][PF<sub>6</sub>] (<strong>1</strong>) and [(&eta;<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)Ru<sup>II</sup>(L<sup>10</sup>)][PF<sub>6</sub>] (<strong>2</strong>), supported by two mononegative phenolate-based ligands (L<sup>6</sup> = [2,6-bis((pyrazol-1-yl)methyl]-4-methylphenol and L<sup>10</sup> = 6-{[2&#39;-(
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10

Yousef, T. A., and M. Khairy M. Khairy. "Synthesis, Characterization, Optical, DFT, TD DFT Studies and in Silico ADME Predictions of Thiosemicarbazone Ligand and its Au(III) Complex." Oriental Journal Of Chemistry 38, no. 3 (2022): 537–46. http://dx.doi.org/10.13005/ojc/380303.

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In the present work the reaction of hydrazone ligand with AuCl3 was investigated. The ligand that could be obtained by the condensation of Thiosemicarbazide with p-diaminobenzaldehyde belong to the class of mononegative or binegative bidentate ligands. The structure of the prepared samples has been defined by infrared spectroscopy, elemental analyzes, 1H-13C NMR, SEM, and Powder XRD techniques. The ligand is present in both solid and liquid states in the thione form. The ligand is binding to Au via azomethine nitrogen and thione sulfur atoms. Powder XRD pattern of ligand and [AuHLCl2]Cl comple
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11

Samet, Cindy, Janna L. Rose, Susan B. Piepho, Joseph Laurito, Lester Andrews, and Paul N. Schatz. "Analysis of the Jahn-Teller Effect in Matrix Isolated Cyclooctatetraene Mononegative Ion Using Magnetic Circular Dichroism Spectroscopy." Journal of the American Chemical Society 116, no. 24 (1994): 11109–19. http://dx.doi.org/10.1021/ja00103a028.

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12

Sai Sunder, V. V. S. S., and K. D. Sen. "Density functional calculations of the ionic radii of Be−, Mg−, Ca−, Sr−, Ba− and some metastable mononegative ions." Chemical Physics Letters 162, no. 3 (1989): 185–87. http://dx.doi.org/10.1016/0009-2614(89)85122-x.

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13

Chen, Jy Wann, Chi Chang Chang, and Chung Sun Chung. "Solvent effects on axial ligation of isomeric (5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene)copper(II) cations with mononegative ligands." Inorganic Chemistry 26, no. 2 (1987): 335–37. http://dx.doi.org/10.1021/ic00249a025.

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14

Haritosh, Mishra, and Mukherjee Rabindranath. "Half-sandwich ŋ6-benzene ruthenium(II) complexes of phenolate-based 2-(pyridyl)alkylamine and bis-pyrazole ligands: Synthesis, spectra, structure and non-covalent interactions." Journal of Indian Chemical Society Vol. 95, Jul 2018 (2018): 697–706. https://doi.org/10.5281/zenodo.5638207.

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Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, Uttar Pradesh, India <em>E</em>-<em>mail: rnm@</em><strong><em>i</em></strong><em>tk.ac.in</em> <em>Manuscript received 01 July 2018, accepted 09 July 2018</em> Two new half-sandwich complexes [(ŋ<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)Ru<sup>II</sup>(L<sup>6</sup>)][PF<sub>6</sub>] (<strong>1</strong>) and [(ŋ<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)Ru<sup>II</sup>(L<sup>10</sup>)][PF<sub>6</sub>] (<strong>2</strong>), supported by two mononegative phenolate-based ligands (L<sup>6</sup> = [2,6-bis((pyrazol-1-yl)met
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15

van der Meer, D. "Electrochemical reduction of aza aromatics. Part III: Reaction rate constants of the mononegative ions of the di-aza aromatics with water." Recueil des Travaux Chimiques des Pays-Bas 89, no. 1 (2010): 51–67. http://dx.doi.org/10.1002/recl.19700890109.

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16

Abou Melha, Khlood S., Gamil A. Al-Hazmi, Ismail Althagafi, et al. "Spectral, Molecular Modeling, and Biological Activity Studies on New Schiff’s Base of Acenaphthaquinone Transition Metal Complexes." Bioinorganic Chemistry and Applications 2021 (March 22, 2021): 1–17. http://dx.doi.org/10.1155/2021/6674394.

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The newly synthesized Schiff’s base derivative, N-allyl-2-(2-oxoacenaphthylen-1(2H)-ylidene)hydrazine-1-carbothioamide, has been characterized by different spectral techniques. Its reaction with Co(II), Ni(II), and Zn(II) acetate led to the formation of 1 : 1 (M:L) complexes. The IR and NMR spectral data revealed keto-thione form for the free ligand. On chelation with Co(II) and Ni(II), it behaved as mononegative and neutral tridentate via O, N1, and S donors, respectively, while it showed neutral bidentate mode via O and N1 atoms with Zn(II). The electronic spectra indicated that all the isol
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17

Al-Rasheed, Hessa H., Sarah A. AL-khamis, Ayman El-Faham, et al. "Synthesis, X-ray Structure, Hirshfeld Surface Analysis and Antimicrobial Assessment of Tetranuclear s-Triazine Hydrazine Schiff Base Ligand." Inorganics 11, no. 9 (2023): 357. http://dx.doi.org/10.3390/inorganics11090357.

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The unexpected tetranuclear [Cu4(DPPT)2Cl6] complex was obtained by self-assembly of CuCl2.2H2O and (E)-2,4-di(piperidin-1-yl)-6-(2-(1-(pyridin-2-yl)ethylidene)hydrazinyl)-1,3,5-triazine, (HDPPT) in ethanol. In this tetranuclear [Cu4(DPPT)2Cl6] complex, the organic ligand acts as mononegative chelate bridging two crystallographically independent Cu(II) sites. The DPPT− anion acts as a bidentate ligand with respect to Cu(1), while it is a tridentate for Cu(2). The Cu(1)N2Cl3 and Cu(2)N3Cl spheres have square pyramidal and square planar coordination geometries with some distortion, respectively.
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18

Samet, Cindy, Janna L. Rose, Susan B. Piepho, Joseph Laurito, Lester Andrews, and Paul N. Schatz. "Analysis of the Jahn-Teller Effect in Matrix Isolated Cyclooctatetraene Mononegative Ion Using Magnetic Circular Dichroism Spectroscopy. [Erratum to document cited in CA122:132451]." Journal of the American Chemical Society 117, no. 36 (1995): 9381. http://dx.doi.org/10.1021/ja00141a044.

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19

Baffert, Carole, Marie-Nöelle Collomb, Alain Deronzier, et al. "Biologically relevant mono- and di-nuclear manganese ii/iii/iv complexes of mononegative pentadentate ligandsElectronic supplementary information (ESI) available: The ESI mass spectra of 1 at various tube-lens potentials. See http://www.rsc.org/suppdata/dt/b3/b300823a/." Dalton Transactions, no. 9 (March 18, 2003): 1765–72. http://dx.doi.org/10.1039/b300823a.

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20

Arnold, Dennis P., and Graham A. Heath. "Voltammetric and UV to near-IR spectroelectrochemical characterization of the meso, meso'-buta-1,3-diyne-bridged octaethylporphyrin dimers {[M(OEP)](.mu.-C4)[M(OEP)]} (M2 = H4, cobalt2, nickel2, copper2, zinc2, palladium2, platinum2, Co/Ni, and Ni/Zn), in their neutral, mononegative, and dinegative oxidation states." Journal of the American Chemical Society 115, no. 25 (1993): 12197–98. http://dx.doi.org/10.1021/ja00078a081.

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21

PASICHNYK, Nataliia, Nataliia HOTSA, and Anna KOSENKO. "ON THE CATEGORY OF NEGATION IN MEDIEVAL ENGLISH LITERATURE." Annals of the University of Craiova. Series Philology. Linguistics 43, no. 1 (2022). http://dx.doi.org/10.52846/aucssflingv.v43i1.17.

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The article “On the category of negation in Medieval English literature” deals with the main aspects of expressing the category of negation in Medieval English literature, based the example of the “Canterbury Tales” by Geoffrey Chaucer. Among the most productive ways we mention negative affixes, negative pronouns, negative adverbs, mononegation and polynegation at the syntactic level.
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22

"Synthesis, spectral characterization, DFT and in vitro antibacterial activity of Zn(II), Cd(II) and Hg(II) complexes derived from a new thiosemicarbazide." Letters in Applied NanoBioScience 8, no. 4 (2019): 715–22. http://dx.doi.org/10.33263/lianbs84.715722.

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A new series of mono-nuclear complexes, Cd2+, Zn2+ and Hg2+ derived from 4,4-dimethyl-2,6-dioxo-N-phenylcyclohexanecarbothioamide (HDDPT) have been prepared and characterized. The complexes adopted the molecular formulae; [Hg(DDPT)Cl(H2O)], [Cd (HDDPT) 2Cl2] and [Zn (HDDPT)2Cl2], respectively. IR data showed that HDDPT ligand acts as OS bidentate either in neutral form as in Cd2+, Zn2+ complexes or mononegative chelate in Hg2+complex. An octahedral environment was suggested for Zn2+ and Cd2+ complexes and a tetrahedral arrangement for Hg2+ complex. DFT method we used to confirm the geometries
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23

Hosny, Nasser M., Ghada Samir, and Mohamed H. Abdel-Rhman. "N′-(Furan-2-ylmethylene)-2-hydroxybenzohydrazide and its metal complexes: synthesis, spectroscopic investigations, DFT calculations and cytotoxicity profiling." BMC Chemistry 18, no. 1 (2024). http://dx.doi.org/10.1186/s13065-023-01098-8.

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AbstractThe ligand, N′-(furan-2-ylmethylene)-2-hydroxybenzohydrazide (H2L), was synthesized characterized through various spectral studies which cleared out that the free ligand existed in keto form. The ligand upon reaction with Cu(II), Co(II), Ni(II) and Zn(II) acetates yielded complexes with stoichiometric ratio 1:2 (M:L) which has been validated through the elemental and mass spectral measurements. The IR and NMR spectral studies of the isolated complexes disclosed that the ligand chelated to metal ion in mononegative bidentate fashion via the azomethine nitrogen and deprotonated enolized
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24

Sasmal, Prithwiraj, Rakesh Debnath, Subratanath Koner, et al. "Insight into the Structural Optimization and Electrical Conductivity of NiII/MnII Bipyridine–Dicyanamide Complexes." ChemistrySelect 9, no. 40 (2024). http://dx.doi.org/10.1002/slct.202402953.

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AbstractTwo monomeric octahedral complexes {[Ni(N(CN)2)2(bpy)2]2·H2O (1) and [Mn(N(CN)2)2(bpy)2] (2) where bpy = 2,2′‐bipyridine} were synthesized and characterized by single crystal X‐ray diffraction, elemental analysis, UV–visible, and IR spectra. The geometry optimization through DFT measurements predicts that both the complexes have similar monomeric structures with hexa‐coordinated metal centers having a couple of bpy and mononegative dca anions and thus satisfying the octahedral geometry. Moreover, it is found that the HOMO–LUMO energy gaps are ΔE = 4.981 and 5.563 eV for complexes 1 and
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25

CHEN, J. W., C. C. CHANG, and C. S. CHUNG. "ChemInform Abstract: Solvent Effects on Axial Ligation of Isomeric (5,7,7,12,14,14-Hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene)copper(II) Cations with Mononegative Ligands." ChemInform 18, no. 23 (1987). http://dx.doi.org/10.1002/chin.198723058.

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