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Journal articles on the topic 'ONO Donor Schiff Bases'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

G., M. Mir. "SYNTHESIS, CHARACTERIZATION OF SCHIFF BASE COBALT (II) METAL COMPLEX." iajps,CSK PUBLICATIONS 03, no. 11 (2016): 1366–69. https://doi.org/10.5281/zenodo.200634.

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We have synthesized the Schiff base, 3-{(E)-[(2-hydroxy-4-methylphenyl) imino] methyl} quinoxalin- 2(1H)-one, by condensation reaction. The Schiff base is an ONO donor and it can act as a monobasic or dibasic ligand due to the formation of tautomers. Based on the physicochemical and spectroscopic studies we propose octahedral structures for the complex Key words: Schiff base, ONO donor, tautomers, physicochemical

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2

B., R. HAVINALE, and I. B. PUJAR (Late). "Synthesis and Characterisation of Cobalt(II) and Nickel(II) Complexes with some ONO Donor Schiff Bases." Journal of Indian Chemical Society Vol. 65, Oct 1988 (1988): 710–12. https://doi.org/10.5281/zenodo.6090260.

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Department of Chemistry, Karnatak University, Dharwad-580 003 <em>Manuscript received 29 March 1988, revised 5 July 1988, accepted 18 July 1988</em> Synthesis and Characterisation of Cobalt(II) and Nickel(II) Complexes with some ONO Donor Schiff Bases.

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3

Chohan, Zahid H., M. A. Farooq, and M. S. Iqbal. "Synthesis, Characterization and Biological Properties of Anions of Bivalent Transition Metal [Co(II) and Ni(II)] Complexes With Acylhydrazine Derived ONO Donor Schiff Bases." Metal-Based Drugs 7, no. 3 (2000): 133–39. http://dx.doi.org/10.1155/mbd.2000.133.

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Some acylhydrazine derived ONO donor Schiff bases and their Co(II) and Ni(II) complexes have been prepared having the same metal ion (cation) but different anions. These synthesized metal(II) complexes have been characterized on the basis of their elemental analyses, magnetic moment, molar conductance, and IR and electronic spectral data. All of the Schiff base ligands function as tridentates and the deprotonated enolic form is preferred for coordination. In order to evaluate the effect of anions on the bactericidal activity, these synthesized complexes, in comparison to the uncomplexed Schiff

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4

Ide, S., N. Ancın, H. Malkaş, and S. G. Öztaş. "Structural features of some organotin (IV) complexes of ONO donor Schiff bases." Acta Crystallographica Section A Foundations of Crystallography 63, a1 (2007): s169. http://dx.doi.org/10.1107/s0108767307096195.

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5

Gopinathan, S., M. P. Degaonkar, A. M. Hundekar, and C. Gopinathan. "Organotin(IV) complexes of dibasic tridentate Schiff bases containing ONO donor atoms." Applied Organometallic Chemistry 7, no. 1 (1993): 63–69. http://dx.doi.org/10.1002/aoc.590070108.

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6

BIPIN, B. . MAHAPATRA, PANDA D., K. DAS DILLIP, K. PATEL B., and C. CHAUDHURY S. "Cobalt-, Nickel-, Copper-, Zinc-, Cadmium- and Mercury-(II) Complexes with a Tridentate ONO Donor Schiff Base." Journal of Indian Chemical Society Vol. 65, Sep 1988 (1988): 661–62. https://doi.org/10.5281/zenodo.6045538.

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Department Chemistry, G. M. College, Sambalpur-768 004 <em>Manuscript received 31 August 1981, revised 3 June 1988, accepted 11 June 1988</em> Cobalt-, Nickel-, Copper-, Zinc-, Cadmium- and Mercury-(II) Complexes with a Tridentate ONO Donor Schiff Base.

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7

PERIHAN, GÜRKAN, and GÜNDÜZ NECLA. "Potentiometric Determination of Protonation Constants of some o,o'-Dihydroxy Schiff Bases and Stability Constants of their Nickel(II) Complexes." Journal of Indian Chemical Society Vol. 74, Sep 1997 (1997): 713–14. https://doi.org/10.5281/zenodo.5895977.

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Gazi Üniversitcsi Fen-Edebiyat Fakiiltesi Kimya Boliimii, Teknikokullar 06500, Ankara, Turkey Ankara Ünivemtesi Fen Fakiiltcsi Kimya Biiliimii, Ankara, Turkey <em>Manuscript received 20 June 1996, accepted 20 September 1996</em> Potentiometric Determination of Protonation Constants of some o,o'-Dihydroxy Schiff Bases and Stability Constants of their Nickel(II) Complexes.

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8

Soliman, Ahmed A., Saadia A. Ali, and Adel Orabi. "Spectral and thermal studies of some chromium and molybdenum complexes with ONO donor Schiff bases." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 65, no. 3-4 (2006): 841–45. http://dx.doi.org/10.1016/j.saa.2006.01.016.

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9

Tsantis, Sokratis T., Vlasoula Bekiari, Catherine P. Raptopoulou, Demetrios I. Tzimopoulos, Vassilis Psycharis, and Spyros P. Perlepes. "Dioxidouranium(IV) complexes with Schiff bases possessing an ONO donor set: Synthetic, structural and spectroscopic studies." Polyhedron 152 (September 2018): 172–78. http://dx.doi.org/10.1016/j.poly.2018.06.034.

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10

Jagdish, Prasad, Yadav Prem, Prakash Ved, and Srivastava Krishna. "Electrochemical and electron paramagnetic resonance studies of some oxovanadium(IV) complexes with ONO donor Schiff base ligands." Journal of Indian Chemical Society Vol. 84, Jul 2007 (2007): 647–51. https://doi.org/10.5281/zenodo.5823844.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India <em>E-mail </em>: dr_jagdish_p@yahoo.co.in; dr_krishna_s@yahoo.co.in <em>Manuscript received 10 August 2005, revised 18 May 2007, accepted 21 May 2007</em> The electrochemical and EPR spectral properties of some oxovanadium(IV) complexes with Schiff bases (SaiAA) derived from salicylaldehyde and six aminoacids, viz. glycine, L-alanine, L-phenylalanine, DL-valine, L-leucine and L-methionine have been studied at a Pt working electrode in dimethylsulfoxide (DMSO), dimethylfonnamide (DMF) and 50% DMSO-aqueous

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11

Maurya, R. C., B. A. Malik, J. M. Mir, and A. K. Sharma. "Synthesis, characterization, thermal behavior, and DFT aspects of some oxovanadium(IV) complexes involving ONO-donor sugar Schiff bases." Journal of Coordination Chemistry 67, no. 18 (2014): 3084–106. http://dx.doi.org/10.1080/00958972.2014.959508.

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12

Horozić, Emir, Maida Šljivić Husejnović, Adem Bajrić, et al. "BSA binding affinity, free radical scavenging capacity and antibacterial activity of new Silver(I) complexes with Schiff base ligands." International Journal of Basic and Applied Sciences 9, no. 3 (2020): 12. http://dx.doi.org/10.14419/ijbas.v9i3.31182.

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In this work, four silver(I) complexes with Schiff bases derived from ninhydrin and selected amino acids (methionine, histidine, cysteine, and phenylalanine) were synthesized. The aim of this study is to determine the potential biological activity of these complexes. FTIR and UV/VIS spectroscopy were used for structural characterization of the products. Antioxidant activity was examined in vitro using DPPH method. Antimicrobial screening was performed by diffusion technique on reference bacterial strains from the ATCC collection. Interaction with bovine serum albumin (BSA) was examined using U

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13

E., M. Jincy, K. Rejimon P., and K. Muraleedharan Nair M. "SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL STUDIES OF SOME LANTHANIDE (III) COMPLEXES WITH A TRIDENTATE ONO DONOR SCHIFF BASE LIGAND." International Journal of Applied and Advanced Scientific Research 2, no. 2 (2017): 246–51. https://doi.org/10.5281/zenodo.1066089.

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Some new lanthanide(III) complexes- La(III), Ce(III), Pr(III) and Nd(III) have been synthesised from Schiff base ligand 4-{[(2-hydroxyphenyl)imino]methyl}-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (L<sub>1</sub>) whose precursors are 4-antipyrine carboxaldehyde   and 2-aminophenol. The metal to ligand ratio (1:2) and the general formula [Ln(L<sub>1</sub>)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> were established by elemental analysis, conductivity measurements, spectral techniques such as IR, UV-Visible, <sup>1</sup>H NMR as well as magnetic susceptibility meas

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14

Yenişehirli, Gülgün, Nurşen Altuntaş Öztaş, Ertan Şahin, Mustafa Çelebier, Nilgün Ancın, and Selma Gül Öztaş. "Synthesis, characterization, and in vitro antimicrobial activities of organotin(IV) complexes of Schiff bases with ONO-type donor atoms." Heteroatom Chemistry 21, no. 6 (2010): 373–85. http://dx.doi.org/10.1002/hc.20628.

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15

Nguyen Ngoc, Tue, and Trung Nguyen Duc. "Co(II), Cu(II) and Zn(II) complexes of tridentate ONO donor Schiff base ligand: A DFT studies." Vietnam Journal of Catalysis and Adsorption 11, no. 2 (2022): 29–33. http://dx.doi.org/10.51316/jca.2022.025.

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A series of Cu(II), Co(II), and Zn(II), mononuclear Schiff base complexes were studied and characterized by DFT calculations. The ligand was derived from the experiment of condensing 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione with o-phenylenediamine. The Schiff base ligand has coordination sites on phenolic oxygen, azomethine nitrogen, and amino group nitrogen, where it behaves as a monobasic tridentate. All studied structure was constructed based on the ration 1:1 (metal: ligand) stoichiometry. Except for the Cu(II) complex, which exhibited a square planar arrangement, the metal complex

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16

Patel, B. V., Kalpana Desai, and B. T. Thaker. "Mixed Azomethine Mononuclear and Binuclear Copper (II) Complexes with Alkyl and Aryl Schiff Bases Involving ONO and ONS Donor Atoms." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 19, no. 4 (1989): 391–412. http://dx.doi.org/10.1080/00945718908048078.

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17

Öztaş, Nurşen Altuntaş, Gülgün Yenişehirli, Nilgün Ancın, Selma Gül Öztaş, Yusuf Özcan, and Semra İde. "Synthesis, characterization, biological activities of dimethyltin(IV) complexes of Schiff bases with ONO-type donors." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 72, no. 5 (2009): 929–35. http://dx.doi.org/10.1016/j.saa.2008.12.023.

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18

Syamal, Arun, and M. A. Bari Niazi. "Molybdenum complexes of biochemical iinterest. New coordination complexes of oxomolybdenum(V) with the tridentate ONO donor schiff bases derived from salicylaldehydes and ethanolamine." Transition Metal Chemistry 10, no. 2 (1985): 54–56. http://dx.doi.org/10.1007/bf00624205.

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19

Fazlur, Rahaman, Hiremath Basavaraj, M. Basavarajaiah S., H. M. Jayakumarswamy B., and H. M. Mruthyunjayaswamy B. "Synthetic, spectral, thermal and antimicrobial activity studies of some transition metal complexes derived from 2-hydroxy-methylbenzaldehyde N-(4'-phenyl-1' ,3' -thiazol-2' -yl)semicarbazone." Journal of Indian Chemical Society Vol. 85, Apr 2008 (2008): 381–86. https://doi.org/10.5281/zenodo.5814807.

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Department of Studies and Research in Chemistry, Gulbarga University, Gulbarga-585 106, Karnataka, India <em>E-mail :</em> bhmmswamy53@rediffmail.com S.C.S College of Pharmacy, Harapanahalli-583 131, Karnataka, India <em>Manuscript received 7 August 2007, revised 13 December 2007, accepted 15 January 2008</em> The Co<sup>II</sup> , Ni<sup>II</sup>, Cu<sup>II</sup> , Zn<sup>II</sup>, Cd<sup>II</sup> and Hg<sup>II</sup> complexes of Schiff base 2-hydroxy-5-methylbenzaldehyde <em>N</em>-(4'- phenyl-1',3'-thiazol-2'-yl)semicarbazone have been synthesized and characterized by e

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20

D., Kumar, Syamal Arun, Gupta A., Pandey V., and Rani Mukesh. "Coordination compounds of Schiff base containing urea moiety." Journal of Indian Chemical Society Vol. 89, Jun 2012 (2012): 745–52. https://doi.org/10.5281/zenodo.5763680.

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Department of Chemistry, National Institute of Technology, Kurukshetra-136 119, Haryana, India School of Coordination Chemistry, D Wing, Ushanagar, Bhandup, Mumbai-400 078, India Department of Chemistry, GIMT, Kanipala-136 118, Kurukshetra, Haryana, India Department of Chemistry, B. P. R. College of Engineering, Gohana-131 301, Haryana, India <em>E-mail</em> : dkumar_nitk@yahoo.com; arunsyamal@yahoo.co.in; anju_guptac@gmail.com;           vandana _p71 @rediffmail. com; mukeshrani@gmail. com <em>Manuscript received 07 March 2011, revised 12 October 2011, accepted 17 Oct

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21

A., Sheela, S. Pramila Gladis M., and I.... Hari Kumaran Nair M. "Synthesis, spectral, thermal, electrochemical and antibacterial studies of oxomolybdenum(v) and dioxomolybdenum(vi) complexes with 2,3-dimethyl-1-phenyl-4-(5-chloro-2-hydroxybenzylideneamino )pyrazol- 5-one." Journal of Indian Chemical Society Vol. 84, April 2007 (2007): 329–32. https://doi.org/10.5281/zenodo.5816798.

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Department of Chemistry, University Co!lege, Thiruvananthapuram-695 034, Kerala, India <em>E-mail</em> : drmlhnair@ gmail.com <em>Manuscript received 12 October 2006, revised 6 February 2007, accepted 8 February 2007</em> The Schiff base 2,3-dimethyl-1-phenyl-4-(5-chloro-2-hydroxyhenzylldeneamino)pyrazol-5-one (AAPCSAL) was prepared by reacting 4-amino antipyrine with 5-chlorosalicylaldehyde and a series of metal complexes with this ligand were synthesised by reaction with oxomolybdenum(v) and dloxomolybdenum(vl) having the compositions [MoOLCI<sub>2</sub>], [MoOL(NCS)CI], [MoOL(NO<sub>3</sub>

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22

Yirga, Bekele, Achalu Chimdi, and P. Thillai Arasu. "Synthesis and Characterization of Co(II) and Ni(II) complexes of Schiff base derived from Ninhydrin and Valine." International Journal of ChemTech Research 13, no. 3 (2020): 265–73. http://dx.doi.org/10.20902/ijctr.2019.130324.

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In this study, Complexes of Co (II) and Ni (II) ions with Ruhmann’s purple (ligand) were successfully synthesized and characterized. The complexes of NiL2and CoL2were synthesized by using template condensation synthesis method and characterized by melting point, solubility, elemental analysis, and molar conductance, and magnetic susceptibility, infrared and electronic spectral studies. The complexes, NiL2and CoL2 are soluble in ethanol, partially soluble in Diethyl ether and chloroform and insoluble in hexane and petroleum ether. The complexes, NiL2and CoL2 neither melt nor decompose up to 420

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23

Singh, Jaswant, Jyoti Parkash, Varinder Kaur, and Raghubir Singh. "New approach for the quantification of metallic species in healthcare products based on optical switching of a Schiff base possessing ONO donor set." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 185 (October 2017): 263–70. http://dx.doi.org/10.1016/j.saa.2017.05.067.

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24

Abdel-Rahman, Laila H., Rafat M. El-Khatib, Lobna A. E. Nassr, and Ahmed M. Abu-Dief. "DNA binding ability mode, spectroscopic studies, hydrophobicity, and in vitro antibacterial evaluation of some new Fe(II) complexes bearing ONO donors amino acid Schiff bases." Arabian Journal of Chemistry 10 (May 2017): S1835—S1846. http://dx.doi.org/10.1016/j.arabjc.2013.07.010.

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25

D., Kumar, Sharma Jyoti, Chadda Silky, and Syamal A. "Syntheses and characterization of the coordination compounds of metal ions of first and second transition series with the Schiff base in aqueous and non-aqueous reaction conditions." Journal of Indian Chemical Society Vol. 90, Aug 2013 (2013): 1077–86. https://doi.org/10.5281/zenodo.5783501.

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Department of Chemistry, National Institute of Technology, Kurukshetra-136 119, Haryana, India E-mail : dkumar_nitk@yahoo.com, silkychadda2010@gmail.com Department of Chemistry, International Institute of Engineering and Technology, Samani, Kurukshetra-136 118, Haryana, India E-mail : sharadpr123@rediffmail.com SchooI of Coordination Chemistry, D Wing, Ushanagar, Bhandup, Mumbai-400 078, India <em>E-mail :</em> arunsyamal@yahoo.co.in <em>Manuscript received online 05 October 2012, revised 19 October 2012, accepted 25 October 2012</em> The coordination compounds of some metal ions of first

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26

Dinesh, Kumar, Sharma Jyoti, Chadda Silky, and Syamal Arun. "Syntheses, spectral and antimicrobial studies of the coordination compounds of the Schiff base containing aliphatic hydrazone moiety." Journal Of Indian Chemical Society Vol. 91, Feb 2014 (2014): 185–93. https://doi.org/10.5281/zenodo.5748688.

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Department of Chemistry, National Institute of Technology, Kurukshetra-136 119, Haryana, India <em>E-mail</em> : dkumar_nitk@yahoo.com School of Coordination Chemistry, D Wing, Ushanagar, Bhandup, Mumbai-400 078, India <em>Manuscript received online 18 February 2013, revised 07 April 2013, accepted 29 April 2013</em> Salicylaldehyde and 3-oxobutanehydrazide react in equimolar ratio in <strong>EtOH</strong> and form the Schiff base, <em>N</em>-(2- hydroxybenzal)-3-oxobutanehydrazone, <strong>LH<sub>3</sub> (1)</strong>. The latter reacts with <strong>Mn<sup>II</sup>, Co<sup>II</sup>, Ni<sup>II<

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27

Çelebier, Mustafa, Ertan Şahin, Nilgün Ancın, Nurşen Altuntaş Öztaş, and Selma Gül Öztaş. "Synthesis and characterization of diorganotin(IV) complexes of Schiff bases with ONO-type donors and crystal structure of [N-(2-hydroxy-4-nitrophenyl)-3-ethoxysalicylideneiminato]diphenyltin(IV)." Applied Organometallic Chemistry 21, no. 10 (2007): 913–18. http://dx.doi.org/10.1002/aoc.1311.

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28

Çelebier, Mustafa, Ertan Şahin, Nilgün Ancın, Nurşen Altuntaş Öztaş, and Selma Gül Öztaş. "Erratum: Synthesis and characterization of diorganotin(IV) complexes of Schiff bases with ONO-type donors and crystal structure of [N-(2-hydroxy-4-nitrophenyl)-3-ethoxysalicylideneiminato]diphenyltin(IV)." Applied Organometallic Chemistry 21, no. 10 (2007): viii. http://dx.doi.org/10.1002/aoc.1333.

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29

Syamal, Arun, and Mannar Ram Maurya. "Synthesis and characterisation of nickel(II), cobalt(II), manganese(II), copper(II), zinc(II), dioxouranium(VI) and dioxomolybdenum(VI) complexes of tridentate dibasic ONO donor Schiff bases derived from 2-benzothiazolecarbohydrazide and salicylaldehyde/2-hydroxy-1-naphthaldehyde." Transition Metal Chemistry 11, no. 6 (1986): 201–5. http://dx.doi.org/10.1007/bf00619468.

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30

Bikramaditya, Mandal, Mondal Angsumali, Rakshit Trilochan, et al. "Synthesis, characterization, structure and antibacterial activity of di-nuclearalkoxobridged CuII complex with di-anionic tri-dentate ligand." Journal of Indian Chemical Society Vol. 95, Aug 2018 (2018): 1029–34. https://doi.org/10.5281/zenodo.5644600.

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Department of Chemistry, Department of Botany, Sidho-Kanho-Birsha University, Purulia-723 104, West Bengal, India <em>E</em>-<em>mail:</em> deb_mandal@yahoo.co.in Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata-700 032, India <em>Manuscript received 16 July 2018, accepted 20 August 2018</em> The tri-dentate ONO-donor Schiff base ligand H<sub>2</sub>L was produced from the condensation of benzoylacetone and 3- aminopropanol. This tri-dentate alcohol based ligand was treated with Cu(ClO<sub>4</sub>)<sub>2</sub>.6H<sub>2</sub>O to generate two doubly

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31

BIPIN, B. MAHAPATRA, and K. DAS DILLIP. "Polymetallic Complexes. Part-XIII. Iron-, Cobalt-, Nickel-, Copper-, Zinc- and Mercury-(II) Complexes with ONO Tridentate Schiff Bases." Journal of Indian Chemical Society Vol. 67, June 1990 (1990): 504–6. https://doi.org/10.5281/zenodo.6202694.

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Department of Chemistry, G. M. College, Sambalpur-768 004 <em>Manuscript received 8 July 1986, revised 28 July 1988, accepted 15 February 1990</em> Polymetallic Complexes. Part-XIII. Iron-, Cobalt-, Nickel-, Copper-, Zinc- and Mercury-(II) Complexes with ONO Tridentate Schiff Bases

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32

Liu, Xiaoxia, Shuya Yang, Honglei Yu, Tao Zhang, Honglei Yu, and Weili Wang. "Selective oxidation of alcohols promoted by cis-Dioxomolybdenum (VI) ONO Complexes." Afinidad. Journal of Chemical Engineering Theoretical and Applied Chemistry 80, no. 598 (2023): 35–50. http://dx.doi.org/10.55815/413304.

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Selective oxidation of alcohols to aldehydes in mild conditions remains an important reaction in organic synthesis, in this regard the use of molybdenum complexes of Schiff bases results in an effective improvement of the catalysis of this reaction. Several ONO Schiff bases were synthesized by condensation of o-aminophenol and the corresponding 5-substituted salicylaldehyde derivatives, further complexation with bis(acetylacetonato)dioxomolybdenum(VI) afforded the corresponding cis-dioxomolybdenum(VI) complexes which were fully characterized. These complexes were used as catalysts for the oxid

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33

Ou, Hsiu-Wei, Wei-Yi Lu, Jaya Kishore Vandavasi, Ya-Fan Lin, Hsuan-Ying Chen, and Chu-Chieh Lin. "Improvement in titanium complexes supported by Schiff bases in ring-opening polymerization of cyclic esters: ONO-tridentate Schiff bases." Polymer 140 (March 2018): 315–25. http://dx.doi.org/10.1016/j.polymer.2018.02.016.

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34

Demehin, Abidemi Iyewumi, Mary Adelaide Oladipo, and Banjo Semire. "Synthesis, spectroscopic, biological activities and DFT calculations of nickel(II) mixed-ligand complexes of tridentate Schiff bases." Eclética Química Journal 45, no. 1 (2020): 18. http://dx.doi.org/10.26850/1678-4618eqj.v45.1.2020.p18-43.

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Ni(II) mixed-ligand complexes of [NiLNH3] (where L= N-salicylidene-o-aminophenol (L1), N-(5-methoxysalicylidene-o-aminophenol) (L2) and N-(2-hydroxy-1-naphthalidene)-o-aminophenol) (L3) containing ONO tridentate Schiff bases and ammonia were synthesized and characterized by elemental analysis, infrared, ultraviolet-visible, proton and carbon-13 spectroscopies. Theoretical calculations were also performed on the optimized structures of the Ni(II) mixed-ligand complexes. The Infrared and ultraviolet-visible spectra of the complexes were calculated, and the results compared with the corresponding

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35

Bhattacharjee, Chira R., Chitraniva Datta, Gobinda Das, et al. "Photoluminescent columnar zinc(II) bimetallomesogen of tridentate [ONO]-donor Schiff base ligand." Liquid Crystals 40, no. 7 (2013): 942–50. http://dx.doi.org/10.1080/02678292.2013.788229.

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36

Shabbir, Muhammad, Zareen Akhter, Ahmad Raza Ashraf, Michael Bolte, Sumbal Wahid, and Bushra Mirza. "Pharmacological evaluation of ONNO donor quadridentate Schiff bases." European Journal of Chemistry 8, no. 1 (2017): 46–51. http://dx.doi.org/10.5155/eurjchem.8.1.46-51.1535.

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37

Horozić, Emir. "Spectral Analysis and In vitro Biological Activity of Cu(II) Complex with Tridentate ONO Schiff Base Ligand." Journal of Pure and Applied Chemistry Research 10, no. 2 (2021): 159–64. http://dx.doi.org/10.21776/ub.jpacr.2021.010.02.569.

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In this study, metal complex of Copper(II) with a Schiff base derived from 2,2-dihydroxyindane-1,3-dione and 2-aminoethanoic acid were synthesized. The product are characterized by spectral methods. The antimicrobial activity was tested on reference bacterial strains and the antioxidant capacity was analyzed by using the DPPH and FRAP methods. The spectral data indicates that the Schiff base coordinates the Copper(II) as a tridentate ONO donor ligand. The compounds showed weaker antimicrobial activity on certain tested microorganisms. In vitro testing of antioxidant activity showed a significa

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38

Yeşilbağ, S., S. Kansız, N. Dege, and E. Agar. "STRUCTURAL INVESTIGATION AND HIRSHFELD SURFACE ANALYSIS OF TWO [ONO]-TYPE SCHIFF BASES." Журнал структурной химии 65, no. 3 (2024): 123641. http://dx.doi.org/10.26902/jsc_id123641.

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Two novel [ONO]-type tridentate Schiff base compounds namely (E)-2-(((2-hydroxyphenyl)imino)methyl)-4,5-dimethoxyphenol, C15H15NO4 (1), and (E)-2-(((5-chloro-2-hydroxyphenyl)imino)methyl)-4,5-dimethoxyphenol, C15H14ClNO4 (2) were synthesized. These compounds were characterized using various spectroscopic techniques, including single crystal X-ray diffraction (XRD), infrared (IR), proton nuclear magnetic resonance (1H NMR), carbon-13 nuclear magnetic resonance (13C NMR), and UV-Vis spectroscopy. The X-ray crystallographic analysis revealed that both compounds 1 and 2 contain two independent mol

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Yeşilbağ, S., S. Kansız, N. Dege, and E. Ağar. "Structural Investigation and Hirshfeld Surface Analysis of Two [ONO]-Type Schiff Bases." Journal of Structural Chemistry 65, no. 3 (2024): 464–77. http://dx.doi.org/10.1134/s0022476624030041.

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Pervaiz, Muhammad, Ikram Ahmad, Zohaib Saeed, et al. "Amalgamation and Scrutinizing of Leucine Derivatives Schiff Bases Complexes as Antimicrobial Agent." Combinatorial Chemistry & High Throughput Screening 25, no. 7 (2022): 1167–80. http://dx.doi.org/10.2174/1386207325666210927092623.

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: The enhanced applications of Schiff bases metal complexes of amino acid derivatives have captured the attention of researchers for the synthesis of leucine derivatives of Schiff bases metal complexes. Amino acids are considered to be essential part of food supplements as well as derivatives of Schiff bases in coordination chemistry due to their donor ability. The leucine derivatives Schiff bases ligand have been synthesized by condensation reaction between amine of leucine with aldehyde or ketone bearing molecules attached with them. These complexes were characterized by different spectrosco

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Kurtikyan, Tigran S., Astghik A. Hovhannisyan, Alexei Iretskii, and Peter C. Ford. "Reaction of the Five-Coordinate O-Nitrito Complex Fe(Por)(ONO) (Por = meso-tetra-arylporphyrinato) with THF Gives Two Six-Coordinate Isomers." Australian Journal of Chemistry 62, no. 10 (2009): 1226. http://dx.doi.org/10.1071/ch09318.

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The effect of the proximal ligand on the coordination of the nitrite ligand to the heme model systems Fe(Por)(η1-ONO) (Por = meso-tetraarylporphyrinato dianion) was investigated by FTIR and UV-vis spectra in solvent free, low temperature, porous layered solids and by density functional computations. The reaction of the five-coordinate complex Fe(Por)(η1-ONO) with the ether tetrahydrofuran gives a mixture of the O-nitrito and N-nitrito isomers Fe(Por)(THF)(η1-ONO) and Fe(Por)(THF)(NO2), respectively. This observation is in contrast to earlier studies with nitrogen donor Lewis bases where the N-

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Nalini, R., S. M. Basavarajaiah, N. G. Yernale, and K. Ramakrishna Reddy. "Synthesis, Characterization and Biological Activity of ONO Donor Schiff Base and its Metal Complexes." Asian Journal of Chemistry 34, no. 2 (2022): 389–94. http://dx.doi.org/10.14233/ajchem.2022.23592.

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A new Schiff base ligand (E)-2-((7-hydroxy-4-methyl-2-oxo-2H-chromen-8-yl)methylene)-N-(5- methyl-3-phenyl-1H-indol-2-yl)hydrazine carboxamide (L) (3) was synthesized by the reaction of N-(5-methyl-3-phenyl-1H-indol-2-yl)hydrazinecarboxamide (1) and 7-hydroxy-4-methyl-2-oxo-2Hchromene- 8-carbaldehyde (2). The Cu(II), Co(II), Ni(II) and Zn(II) metal complexes (4a-d) were synthesized and its structural elucidation was done by different spectral techniques. The Schiff base (3) behaves as ONO donor ligand and forms the complexes of the sort [M(L)(Cl)(H2O)2] for Cu(II) (4a) and Zn(II) (4d) and [M(L

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Kótai, László. "Metal Complexes with N-donor Ligands." Inorganics 12, no. 5 (2024): 130. http://dx.doi.org/10.3390/inorganics12050130.

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Complexes of transition and non-transition metals with a wide variety of N-donor ligands (like ammonia, amines, urea derivatives, Schiff bases, or N-heterocycles) comprise a highly important class of compounds in chemistry, biochemistry, material science, and the chemical industry [...]

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Hossain, Abul Monsur Showkot, José M. Méndez-Arriaga, Changkun Xia, Jimin Xie, and Santiago Gómez-Ruiz. "Metal complexes with ONS donor Schiff bases. A review." Polyhedron 217 (May 2022): 115692. http://dx.doi.org/10.1016/j.poly.2022.115692.

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Singh, Har Lal, and A. K. Varshney. "Synthetic, Structural, and Biochemical Studies of Organotin(IV) with Schiff Bases Having Nitrogen and Sulphur Donor Ligands." Bioinorganic Chemistry and Applications 2006 (2006): 1–7. http://dx.doi.org/10.1155/bca/2006/23245.

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Three bidentate Schiff bases having nitrogen and sulphur donor sequences were prepared by condensing S-benzyldithiocarbazate (NH2NHCS2CH2C6H5) with heterocyclic aldehydes. The reaction of diphenyltin dichloride with Schiff bases leads to the formation of a new series of organotin(IV) complexes. An attempt has been made to prove their structures on the basis of elemental analyses, conductance measurements, molecular weights determinations, UV, infrared, and multinuclear magnetic resonance (H1,C13, andS119n) spectral studies. Organotin(IV) complexes were five- and six-coordinate. Schiff bases an

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Sreenivas, V., G. Srikanth, Ch Vinutha, M. Shailaja, P. Muralidhar Reddy, and Ravinder Vadde. "Synthesis, Spectral Characterization and Antimicrobial Studies of Co(II) Complexes with Tetradentate Schiff bases Derived from Ortho-Phthalaldehyde." JOURNAL OF ADVANCES IN CHEMISTRY 9, no. 1 (2016): 1873–82. http://dx.doi.org/10.24297/jac.v9i1.2852.

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A series of cobalt (II) complexes have been synthesized with Schiff bases derived from ortho-phthalaldehyde and various amines in aqueous methanol solution. The newly synthesized Schiff bases and their Co (II) complexes have been characterized by elemental analysis, magnetic susceptibility, thermal, conductance measurements, mass, IR, electronic, 1H,13C-NMR spectral techniques. These ligands act as tetradentate species and coordinate to the metal center through the different potential donor atoms such as N, O and S. The probable octahedral structures have been assigned to these complexes. All

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Journal, Baghdad Science. "Synthesis and Characterization of Novel Methyl 2-(1,7,7-Tri methylbicyclo[2.2.1]hept-2-yieldene)hydrazinecarbodithioate Schiff Bases Derived From Methylhydrazine carbodithioate And Their Bi(III) And Ag(II) Complexes." Baghdad Science Journal 10, no. 3 (2013): 607–17. http://dx.doi.org/10.21123/bsj.10.3.607-617.

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Novel bidentate Schiff bases having nitrogen-sulphur donor sequence was synthesized from condensation of racemate camphor, (R)-camphor and (S)-camphor with Methyl hydrazinecarbodithioate (SMDTC). Its metal complexes were also prepared through the reaction of these ligands with silver and bismuth salts. All complexes were characterized by elemental analyses and various physico-chemical techniques. These Schiff bases behaved as uninegatively charged bidentate ligands and coordinated to the metal ions via ?-nitrogen and thiolate sulphur atoms. The NS Schiff bases formed complexes of general formu

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Al-Karkhi, Isam Hussain T., Abeer Khalid Yaseen, and Hamsa Thamer Sadeq. "Synthesis and Characterization of Novel Methyl 2-(1,7,7-Tri methylbicyclo[2.2.1]hept-2-yieldene)hydrazinecarbodithioate Schiff Bases Derived From Methylhydrazine carbodithioate And Their Bi(III) And Ag(II) Complexes." Baghdad Science Journal 10, no. 3 (2013): 607–17. http://dx.doi.org/10.21123/bsj.2013.10.3.607-617.

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Novel bidentate Schiff bases having nitrogen-sulphur donor sequence was synthesized from condensation of racemate camphor, (R)-camphor and (S)-camphor with Methyl hydrazinecarbodithioate (SMDTC). Its metal complexes were also prepared through the reaction of these ligands with silver and bismuth salts. All complexes were characterized by elemental analyses and various physico-chemical techniques. These Schiff bases behaved as uninegatively charged bidentate ligands and coordinated to the metal ions via ?-nitrogen and thiolate sulphur atoms. The NS Schiff bases formed complexes of general formu

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Taŝtekin, Mustafa, Adnan Kenar, Orhan Atakol, M. Nawaz Tahir, and Dinqer Ülkü. "Some Complexes of Tin(II) and Tin(IV) with Ono-Type Dihydroxy Schiff Bases." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 28, no. 10 (1998): 1727–41. http://dx.doi.org/10.1080/00945719809349426.

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Siddappa, Kuruba, Sunilkumar B. Mane, and Deene Manikprabhu. "Spectral Characterization and 3D Molecular Modeling Studies of Metal Complexes Involving the O, N-Donor Environment of Quinazoline-4(3H)-one Schiff Base and Their Biological Studies." Scientific World Journal 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/817365.

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A simple condensation of 3-amino-2-methylquinazoline-4-one with 2-hydroxy-1-naphthaldehyde produced new tridentate ONO donor Schiff base ligand with efficient yield. The structural characterization of ligand and its Cu(II), Ni(II), Co(II), Mn(II), Zn(II), and Cd(II) complexes were achieved by the aid of elemental analysis, spectral characterization such as (UV-visible, IR, NMR, mass, and ESR), and magnetic data. The analytical and spectroscopic studies suggest the octahedral geometries of Cu(II), Co(II), Ni(II) and Mn(II) complexes and tetrahedral geometry of Zn(II) and Cd(II) complexes with t

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