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Alexandru MG, Visinescu D, Shova S, Oliveira WXC, Lloret F, Julve M. Design of 3d–4f molecular squares through the [Fe{(HB(pz)3)}(CN)3]− metalloligand. Dalton Trans 2018; 47:6005-6017. [DOI: 10.1039/c8dt00895g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of cyanido-bridged {FeIII2LnIII2} heterobimetallic molecular squares [Ln = La (1), Gd (2), Tb (3) and Dy (4)] has been prepared and magneto-structurally investigated.
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Affiliation(s)
- Maria-Gabriela Alexandru
- Department of Inorganic Chemistry
- Physical Chemistry and Electrochemistry
- Faculty of Applied Chemistry and Materials Science
- University Politehnica of Bucharest
- 011061 Bucharest
| | - Diana Visinescu
- Coordination and Supramolecular Chemistry Laboratory
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- Bucharest 060021
- Romania
| | - Sergiu Shova
- “Petru Poni” Institute of Macromolecular Chemistry
- Romanian Academy
- RO-700487 Iasi
- Romania
| | - Willian X. C. Oliveira
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Universitat de València
- Paterna
- Spain
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Universitat de València
- Paterna
- Spain
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Mal SK, Chattopadhyay T, Fathima A, Purohit CS, Kiran MS, Nair BU, Ghosh R. Synthesis and structural characterization of a vanadium(V)-pyridylbenzimidazole complex: DNA binding and anticancer activity. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.01.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mal SK, Mitra M, Kaur G, Manikandamathavan VM, Kiran MS, Choudhury AR, Nair BU, Ghosh R. Nuclease activity and anti-proliferative effect on human cancerous cells of a newly synthesized and characterized mononuclear copper(ii) complex [CuII(L)(fu)2] [L = 2-(2-pyridyl)benzimidazole, fu = furoate]. RSC Adv 2014. [DOI: 10.1039/c4ra09448d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Yu XY, Deng L, Zheng B, Zeng BR, Yi P, Xu X. A spectroscopic study on the coordination and solution structures of the interaction systems between biperoxidovanadate complexes and the pyrazolylpyridine-like ligands. Dalton Trans 2014; 43:1524-33. [PMID: 24213652 DOI: 10.1039/c3dt51986d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to understand the substitution effects of pyrazolylpyridine (pzpy) on the coordination reaction equilibria, the interactions between a series of pzpy-like ligands and biperoxidovanadate ([OV(O2)2(D2O)](-)/[OV(O2)2(HOD)](-), abbrv. bpV) have been explored using a combination of multinuclear ((1)H, (13)C, and (51)V) magnetic resonance, heteronuclear single quantum coherence (HSQC), and variable temperature NMR in a 0.15 mol L(-1) NaCl D2O solution that mimics the physiological conditions. Both the direct NMR data and the equilibrium constants are reported for the first time. A series of new hepta-coordinated peroxidovanadate species [OV(O2)2L](-) (L = pzpy-like chelating ligands) are formed due to several competitive coordination interactions. According to the equilibrium constants for products between bpV and the pzpy-like ligands, the relative affinity of the ligands is found to be pzpy > 2-Ester-pzpy ≈ 2-Me-pzpy ≈ 2-Amide-pzpy > 2-Et-pzpy. In the interaction system between bpV and pzpy, a pair of isomers (Isomers A and B) are observed in aqueous solution, which are attributed to different types of coordination modes between the metal center and the ligands, while the crystal structure of NH4[OV(O2)2(pzpy)]·6H2O (CCDC 898554) has the same coordination structure as Isomer A (the main product for pzpy). For the N-substituted ligands, however, Isomer A or B type complexes can also be observed in solution but the molar ratios of the isomer are reversed (i.e., Isomer B type is the main product). These results demonstrate that when the N atom in the pyrazole ring has a substitution group, hydrogen bonding (from the H atom in the pyrazole ring), the steric effect (from alkyl) and the solvation effect (from the ester or amide group) can jointly affect the coordination reaction equilibrium.
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Affiliation(s)
- Xian-Yong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
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Bushuev MB, Selivanov BA, Pervukhina NV, Naumov DY, Sheludyakova LA, Rakhmanova MI, Tikhonov AY, Larionov SV. Zinc(II) complexes with an imidazolylpyridine ligand: luminescence and hydrogen bonding. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.892589] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University (National Research University), Novosibirsk, Russia
| | - Boris A. Selivanov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Natalia V. Pervukhina
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Dmitrii Yu. Naumov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Lilia A. Sheludyakova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University (National Research University), Novosibirsk, Russia
| | - Marianna I. Rakhmanova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexsei Ya. Tikhonov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Stanislav V. Larionov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
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Zheng B, Deng L, Liu H, Yu X, Wang Z, Yang X, Yi P. NMR and theoretical study on the coordination interactions between peroxovanadium(V) complex and bisubstituted pyridine ligands. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.810732] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Baishu Zheng
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
| | - Lin Deng
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
| | - Heting Liu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
| | - Xianyong Yu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
- b State Key Laboratory of Physical Chemistry of Solid Surfaces , Xiamen University , Xiamen , P.R. China
| | - Zhaoxu Wang
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
| | - Xichun Yang
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
| | - Pinggui Yi
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR , School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan , P.R. China
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Guo J, Jin X, Chen L, Wang Z, Xu Y. Hydrothermal syntheses, crystal structures, and properties of two new organic–inorganic hybrid compounds based on polyoxometalates and pyridyl imidazole. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.725847] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jiuyu Guo
- a College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology , Nanjing 210009 , P.R. China
| | - Xiaofei Jin
- b School of Chemistry and Engineering, Southeast University , Nanjing 211189 , P.R. China
| | - Lei Chen
- a College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology , Nanjing 210009 , P.R. China
| | - Zuoxiang Wang
- b School of Chemistry and Engineering, Southeast University , Nanjing 211189 , P.R. China
| | - Yan Xu
- a College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology , Nanjing 210009 , P.R. China
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Yu XY, Yi PG, Ji DH, Zeng BR, Li XF, Xu X. Study of the coordination and solution structures for the interaction systems between diperoxidovanadate complexes and 4-(pyridin-2-yl)pyrimidine-like ligands. Dalton Trans 2012; 41:3684-94. [DOI: 10.1039/c2dt12334g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schott O, Ferrando-Soria J, Bentama A, Stiriba SE, Pasán J, Ruiz-Pérez C, Andruh M, Lloret F, Julve M. Chromium(III) complexes with 2-(2′-pyridyl)imidazole: Synthesis, crystal structure and magnetic properties. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Multinuclear nuclear magnetic resonance and density functional theoretical studies on the structure of bisperoxovanadium complexes with bidentate donors. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.08.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yu X, Yang F, Ji D, Zhou J, Liu R, Li G, Li X, Chen J, Huang H, Yi P. Spectroscopic investigation of the interaction between diperoxovanadate complexes and benzimidazole-like ligands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:816-820. [PMID: 20801712 DOI: 10.1016/j.saa.2010.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2010] [Revised: 07/16/2010] [Accepted: 08/03/2010] [Indexed: 05/29/2023]
Abstract
To understand the effects of benzimidazole substitution on reaction equilibrium, the interactions between a series of benzimidazole-like ligands and [OV(O₂)₂(D₂O)]⁻/[OV(O₂)₂(HOD)]⁻ in solution were explored by a combination of multinuclear ((1)H, (13)C, and (51)V) magnetic resonance and variable temperature NMR in 0.15 mol/L NaCl ionic medium for mimicking the physiological condition. Some direct NMR data are reported for the first time. These results show that the relative reactivity among the organic ligands is 2-methyl-1H-benzo[d]imidazole>(1H-benzo[d]imidazol-2-yl)methanol>1-(1H-benzo[d]imidazol-2-yl)ethanol>1H-benzo[d][1,2,3]triazole. Both the steric effect and the electron effect of the 2-position substituted groups in benzimidazole ring affect the reaction equilibrium. The competitive coordination results in the formation of a series of new six-coordinated peroxovanadate species [OV(O₂)₂L]⁻(L=benzimidazole-like ligands). Moreover, the results of density functional calculations provided a reasonable explanation on the relative reactivity of the benzimidazole-like ligands as well as the important role of solvation in these reactions.
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Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, PR China
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Yu X, Ji D, Liu R, Yang F, Xie J, Zhou J, Li X, Yi P. NMR and theoretical study on the interaction between diperoxovanadate and 3-picoline derivatives. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.482988] [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]
Affiliation(s)
- Xianyong Yu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Danhong Ji
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Ronghua Liu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Fengxian Yang
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Jian Xie
- b Department of Chemistry and The Skaggs Institute for Chemical Biology , The Scripps Research Institute , 10550 N. Torrey Pines Road, La Jolla, California 92037, USA
| | - Jiming Zhou
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Xiaofang Li
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Pinggui Yi
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education , Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
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Zeng R, Wang Z, Li X, Xie J, Yu X. NMR studies on interactions between diperoxovanadate and picolinamide-like ligands. J COORD CHEM 2010. [DOI: 10.1080/00958970903511158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rongjin Zeng
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Zhaoxu Wang
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Xiaofang Li
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
| | - Jian Xie
- b Department of Chemistry and The Skaggs Institute for Chemical Biology , The Scripps Research Institute , 10550 N. Torrey Pines Road, La Jolla, California, 92037, USA
| | - Xianyong Yu
- a Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology , Xiangtan 411201, China
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Zeng B, Zhang J, Fu R, Cai S, Chen Z. Study on structural variation of oxalate-oxodiperoxovanadate(V) from solid state to solution using NMR spectroscopy and theoretical calculation. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.09.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Preparation, crystal structures and magnetic properties of three thiocyanato-bridged copper(II) complexes with 2,2′-biimidazole or 2-(2′-pyridyl)imidazole as terminal ligands. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.04.001] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yu X, Zhang J, Cai S, Yi P, Chen Z. Investigation on the complex of diperoxovanadate with picolinamide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:965-969. [PMID: 19233713 DOI: 10.1016/j.saa.2008.12.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Accepted: 12/11/2008] [Indexed: 05/27/2023]
Abstract
A novel diperoxovanadate complex NH(4)[OV(O(2))(2)(picolinamide)].H(2)O was synthesized from aqueous solution under physiological conditions. The solution structure of the complex was characterized by multinuclear ((1)H, (13)C, (14)N, and (51)V), variable temperature as well as two-dimensional (DOSY) NMR techniques in the interaction system of NH(4)VO(3)/H(2)O(2)/picolinamide at room temperature. The crystal structure of the complex was determined at 223K by single-crystal X-ray diffraction method. It belongs to the monoclinic space group P21/c with a=7.323(3)A, b=14.255(7)A, c=10.022(5)A, beta=99.524(9) degrees , V=1031.7(8)A(3), and Z=4. The crystal is composed of ammonium ions, picolinamide oxodiperoxovanadate(V) ions, and water molecules, which are held together by ionic and hydrogen bond forces. The species [OV(O(2))(2)(picolinamide)](-) is seven-coordinated with a distorted pentagonal bipyramidal geometry both in solution and in crystal.
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Affiliation(s)
- Xianyong Yu
- Department of Physics, Fujian Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
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Manganese(II) complexes with croconate and 2-(2-pyridyl)imidazole ligands: Syntheses, X-ray structures and magnetic properties. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Yu X, Zhang J, Zeng B, Yi P, Cai S, Chen Z. NMR and theoretical study on interactions between diperoxovanadate complex and 4-substituted pyridines. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 71:644-649. [PMID: 18304861 DOI: 10.1016/j.saa.2008.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 01/06/2008] [Accepted: 01/12/2008] [Indexed: 05/26/2023]
Abstract
To understand the substituting group effects of organic ligands on the reaction equilibrium, the interactions between diperoxovanadate complex [OV(O2)2(D2O)]-/[OV(O2)2(HOD)](-) and a series of 4-substituted pyridines in solution were explored using multinuclear (1H, 13C, and 51V) magnetic resonance, DOSY, and variable temperature NMR in 0.15 mol/L NaCl ionic medium for mimicking the physiological condition. Some direct NMR data are given for the first time. The reactivity among the 4-substituted pyridines is pyridine > isonicotinate > N-methyl isonicotinamide > methyl isonicotinate. The competitive coordination results in the formation of a series of new six-coordinated peroxovanadate species [OV(O2)2L](n-) (L = 4-substituted pyridines, n = 1 or 2). The results of density functional calculations provide a reasonable explanation on the relative reactivity of the 4-substituted pyridines. Solvation effects play an important role in these reactions.
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Affiliation(s)
- Xianyong Yu
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
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Carranza J, Julve M, Sletten J. Hydrogen-bonded 2-(2-pyridyl)imidazole (pyim) manganese(II) complexes as building blocks for molecular assembling: Syntheses and structural characterization of cis-[Mn(pyim)2X2] compounds (X=, NCO− and NCS−). Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2008.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Martínez-Lillo J, Armentano D, De Munno G, Lloret F, Julve M, Faus J. X-Ray structure of [ReCl4(μ-ox)Cu(pyim)2]: a new heterobimetallic ReIVCuIIferrimagnetic chain. Dalton Trans 2008:40-3. [DOI: 10.1039/b714563b] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zeng B, Zhu X, Yu X, Cai S, Chen Z. Spectroscopic and theoretical study on the interaction between diperoxovanadate and oxazole. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:117-22. [PMID: 17509933 DOI: 10.1016/j.saa.2007.03.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2007] [Revised: 03/01/2007] [Accepted: 03/13/2007] [Indexed: 05/15/2023]
Abstract
Detailed investigations were carried out to explore the interaction systems of NH(4)VO(3)/H(2)O(2)/oxazole in aqueous solution under physiological conditions by a combined use of multinuclear NMR ((1)H, (13)C, (14)N and (51)V), diffusion ordered spectroscopy (DOSY), variable temperature NMR, electrospray ionization mass spectrometry (ESI-MS), spin-lattice relaxation and density functional calculations. The results indicated the formation of a new peroxovanadate species [OV(O(2))(2)(oxazole)](-) with oxazole coordinating to vanadium through nitrogen atom. The solution structure of the new species was predicted from theoretical calculations.
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Affiliation(s)
- Birong Zeng
- Department of Chemistry and Physics, Xiamen University, Xiamen, Fujian 361005, China
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Zeng B, Zhu X, Cai S, Chen Z. Interactions between diperoxovanadate complex and amide ligands in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 67:202-7. [PMID: 17254836 DOI: 10.1016/j.saa.2006.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2006] [Accepted: 07/03/2006] [Indexed: 05/13/2023]
Abstract
Multinuclear ((1)H, (13)C, (14)N, and (51)V) NMR spectroscopy has been used to study the reactions between the diperoxovanadate complex K(3)[OV(O(2))(2)(C(2)O(4))] x H(2)O (abbr. bpV(ox)) and ethylenediamine or diethylamine in aqueous solution. The interaction between bpV(ox) and diethylamine was very weak and no new complex was formed. However, bpV(ox) reacted with ethylenediamine giving a new product in which ethylenediamine attached to the vanadium atom via one nitrogen atom in a monodentate manner. Diffusion ordered spectroscopy (DOSY) measurements and theoretical calculations proved the formation of new product in bpV(ox) and ethylenediamine. The vanadium atoms in both [OV(O(2))(2)(C(2)O(4))](3-) and [OV(O(2))(2)(en)](-) species are six coordinated in solution state.
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Affiliation(s)
- Birong Zeng
- Department of Physics, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen University, Xiamen, Fujian 361005, PR China
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Cai S, Yu X, Chen Z. Multinuclear NMR spectroscopic and theoretical study on the interactions between diperoxovanadate complex and picoline-like ligands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 65:616-22. [PMID: 16574471 DOI: 10.1016/j.saa.2005.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2005] [Revised: 12/01/2005] [Accepted: 12/12/2005] [Indexed: 05/08/2023]
Abstract
To understand the substituting effects of organic ligands on the reaction equilibrium, the interactions between diperoxovanadate complex [OV(O(2))(2)(H(2)O)](-) and a series of picoline-like ligands in solution were explored using 1D multinuclear ((1)H, (13)C, and (51)V) magnetic resonance, 2D diffusion ordered spectroscopy (DOSY), and variable temperature NMR in 0.15 mol/l NaCl ionic medium for mimicking the physiological conditions. The order of reactive capability of the picoline-like ligands with [OV(O(2))(2)(H(2)O)](-) is found to be picolinamide>N-methylpicolinamide>methyl picolinate>ethyl picolinate approximately propyl picoliniate>isopropyl picolinate. The substituting group influences the reactivity by either steric effect or electron-donating effect. Competitive coordination interactions result in a series of new seven-coordinated peroxovanadate species [OV(O(2))(2)L](-) (L=picoline-like ligands). Their coordination ways were confirmed by density functional calculations.
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Affiliation(s)
- Shuhui Cai
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, PR China
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