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Majumder S, Pasayat S, Panda AK, Dash SP, Roy S, Biswas A, Varma ME, Joshi BN, Garribba E, Kausar C, Patra SK, Kaminsky W, Crochet A, Dinda R. Monomeric and Dimeric Oxidomolybdenum(V and VI) Complexes, Cytotoxicity, and DNA Interaction Studies: Molybdenum Assisted C═N Bond Cleavage of Salophen Ligands. Inorg Chem 2017; 56:11190-11210. [DOI: 10.1021/acs.inorgchem.7b01578] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sudarshana Majumder
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Sagarika Pasayat
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Alok K. Panda
- School of Basic
Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar 751013, Odisha, India
| | - Subhashree P. Dash
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
- Department of Basic Sciences, Paralamaharaja Engineering College, Sitalapalli, Brahmapur, Odisha 761003, India
| | - Satabdi Roy
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Ashis Biswas
- School of Basic
Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar 751013, Odisha, India
| | - Mokshada E. Varma
- Bioprospecting
Group, Agharkar Research Institute, G.G. Agharkar Road, Pune 411004, India
| | - Bimba N. Joshi
- Bioprospecting
Group, Agharkar Research Institute, G.G. Agharkar Road, Pune 411004, India
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna
2, I-07100 Sassari, Italy
| | - Chahat Kausar
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Samir Kumar Patra
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Aurélien Crochet
- Department of Chemistry, Fribourg Center
for Nanomaterials, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
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Gomes AC, Neves P, Cunha-Silva L, Valente AA, Gonçalves IS, Pillinger M. Oxidomolybdenum complexes for acid catalysis using alcohols as solvents and reactants. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02052b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With ethanol as solvent and reactant, a molybdenum (pre)catalyst promotes selective acid-catalysed reactions. Depending on the conditions, the MoVIcomplex is converted to MoVIoxidoalkoxido, MoVoxido-bridged dinuclear, and MoVIoctanuclear complexes.
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Affiliation(s)
- Ana C. Gomes
- Department of Chemistry
- CICECO - Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Patrícia Neves
- Department of Chemistry
- CICECO - Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Luís Cunha-Silva
- REQUIMTE/LAQV
- Department of Chemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
| | - Anabela A. Valente
- Department of Chemistry
- CICECO - Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Isabel S. Gonçalves
- Department of Chemistry
- CICECO - Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Martyn Pillinger
- Department of Chemistry
- CICECO - Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
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Dolinar BS, Berry JF. Electronic tuning of Mo2(thioamidate)4 complexes through π-system substituents and cis/trans isomerism. Dalton Trans 2014; 43:6165-76. [PMID: 24590395 DOI: 10.1039/c4dt00297k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an exploration of the coordination chemistry of a systematic series of cyclic thioamidate ligands with the quadruply-bonded Mo2(4+) core. In addition to the S and N donor atoms that bind to Mo, the ligands utilized in this study have an additional O or S atom in conjugation with the thioamidate π system. The preparation of four new Mo2 complexes is described, and these compounds are characterized by X-ray crystallography, NMR and UV-vis spectroscopy, electrochemistry, and DFT calculations. These complexes provide a means to interrogate the electronics of Mo2(thioamidate)4 systems. Notably, we describe the first two examples of Mo2(thioamidate)4 complexes in their cis-2,2-regioisomer. By varying the π-system substituent and regioisomerism of these compounds, the electronics of the dimolybdenum core is shown to be altered with varying degrees of effect. Cyclic voltammetry results show that changing the π-system substituent from O to S results in an increase in the Mo2(4+/5+) oxidation potential by 170 mV. Changing the arrangement of ligands around the dimolybdenum core from trans-2,2 to cis-2,2 slightly weakens the metal-ligand bonds, raising the oxidation potential by a more modest 30-100 mV. MO diagrams of each compound derived from DFT calculations support these conclusions as well; the identity of the π-system substituent alters the δ-δ* (HOMO-LUMO) gap by up to 0.4 eV, whereas regioisomerism yields smaller changes in the electronic structure.
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Affiliation(s)
- Brian S Dolinar
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53704, USA.
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Majumdar M, Rahaman SW, Sinha A, Bera JK. Mixed-ligand compounds incorporating quadruply bonded dimolybdenum(II) core: Syntheses, structures and reactivity studies. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bera JK, Sadhukhan N, Majumdar M. 1,8‐Naphthyridine Revisited: Applications in Dimetal Chemistry. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900312] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jitendra K. Bera
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
| | - Nabanita Sadhukhan
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
| | - Moumita Majumdar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
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