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Mondal K, Dey A, Mistri S. Aminoethylpiperazine Based Metal Schiff Base Complexes: Catalytic and Biological Activities. COMMENT INORG CHEM 2022. [DOI: 10.1080/02603594.2022.2140146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Keshab Mondal
- Department of Chemistry, Ramananda Centenary College, Laulara, Purulia, India
| | - Avishek Dey
- Department of Botany, Ramananda Centenary College, Laulara, Purulia, India
| | - Soumen Mistri
- Department of Chemistry, Ramananda Centenary College, Laulara, Purulia, India
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Kocyigit A, Hussaini AA, Yıldırım M, Kose DA, Yıldız DE. Schottky type photodiodes with organic Co‐complex and Cd‐complex interlayers. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Adem Kocyigit
- Department of Electronics and Automation, Vocational High School Bilecik Şeyh Edebali University Bilecik Turkey
| | - Ali Akbar Hussaini
- Department of Biotechnology, Faculty of Science Selcuk University Konya Turkey
| | - Murat Yıldırım
- Department of Biotechnology, Faculty of Science Selcuk University Konya Turkey
| | - Dursun Ali Kose
- Department of Chemistry, Faculty of Arts and Sciences Hitit University Corum Turkey
| | - Dilber Esra Yıldız
- Department of Physics, Faculty of Arts and Sciences Hitit University Corum Turkey
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Abbas AM, Fisal SR, Radwan A, Makhlouf M, Orabi AS. Novel action for ampicillin derivative and its complexes: Physicochemical, thermal analysis, DNA interaction, docking with FabH protein, in silico, and in vitro studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nesterova OV, Vassilyeva OY, Skelton BW, Bieńko A, Pombeiro AJL, Nesterov DS. A novel o-vanillin Fe(III) complex catalytically active in C-H oxidation: exploring the magnetic exchange interactions and spectroscopic properties with different DFT functionals. Dalton Trans 2021; 50:14782-14796. [PMID: 34595485 DOI: 10.1039/d1dt02366g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel complex [FeIIICl(L)2(H2O)] (1) was synthesized by interaction of iron(III) chloride with ethanol solution of o-vanillin (HL) and characterized by IR, UV/Vis spectroscopy, thermogravimetry and single crystal X-ray diffraction analysis. The molecules of 1 in the solid state are joined into supramolecular dimeric units, where a set of strong hydrogen bonds predefines the structure of the dimer according to the "key-lock" principle. From the Hirshfield surface analysis the contribution of π⋯π stacking to the overall stabilization of the dimer was found to be negligible. Broken symmetry DFT calculations suggested the presence of long-range antiferromagnetic interactions (J = -0.12 cm-1 for H = -JS1S2 formalism) occurring through the Fe-O⋯O-Fe pathway, as evidenced by the studies of the model dimers where the water molecules were substituted by acetonitrile and acetone ones. The benchmark studies using a set of literature examples and various DFT functionals revealed the hybrid-GGA B3LYP as the best one for prediction of FeIII⋯FeIII antiferromagnetic exchange couplings of small magnitude. Magnetic susceptibility measurements confirmed antiferromagnetic coupling between the metal atoms in 1 with a coupling constant of -0.35 cm-1. Catalytic studies demonstrated that 1 acts as an efficient catalyst in the oxidation of cyclohexane with hydrogen peroxide in the presence of nitric acid promoter and under mild conditions (yield up to 37% based on the substrate), while tert-butylhydroperoxide (TBHP) and m-chloroperoxybenzoic acid (m-CPBA) as oxidants exhibit less efficiency. Combined UV/TDDFT studies evidence the structural rearrangement of 1 in acetonitrile with the formation of [FeIIICl(L)2(CH3CN)] species. The TDDFT benchmark using nine common DFT functionals and two model compounds (o-vanillin and [FeIII(H2O)6]3+ ion) support the hybrid meta-GGA M06-2X functional as the one most correctly predicting the excited state structure for the Fe(III) complexes, under the conditions studied.
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Affiliation(s)
- Oksana V Nesterova
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Olga Yu Vassilyeva
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska str., Kyiv 01601, Ukraine.
| | - Brian W Skelton
- School of Molecular Sciences, M310, University of Western Australia, Perth, WA 6009, Australia
| | - Alina Bieńko
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal. .,Peoples' Friendship University of Russia (RUDN University), Research Institute of Chemistry, 6 Miklukho-Maklaya st, Moscow 117198, Russia
| | - Dmytro S Nesterov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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