Valence tautomerization and exchange coupling in a cobalt-nitronylnitroxide-semiquinone complex

Shultz DA; Kumar RK; Bin-Salamon S; Kirk ML

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Valence tautomerization and exchange coupling in a cobalt-nitronylnitroxide-semiquinone complex

机译：钴-亚硝酰基硝基氧化物-半醌络合物中的价互变异构和交换偶联

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The synthesis, variable-temperature electronic absorption spectroscopy, magnetic susceptibility of a novel valence tautomer are presented, and thermodynamic parameters for the valence tautomeric equilibrium were determined. The dioxolene used is a semiquinone-nitronylnitroxide donor-acceptor ligand. Due to the ferromagnetic coupling inherent in the semiquinone-nitronylnitroxide donor-acceptor biradical, the Co-III form of the valence tautomer may display an additional stabilization of the high-spin ground state resulting from valence delocalization. As such, this would represent a unique example of double exchange in an organic system. (c) 2005 Published by Elsevier Ltd.

机译：给出了新型价互变异构体的合成，可变温度电子吸收光谱，磁化率，并确定了价互变异构平衡的热力学参数。所使用的二氧戊环是半醌-亚硝基硝基氧供体-受体配体。由于半醌-亚硝基硝基氧供体-受体双自由基固有的铁磁耦合，价互变异构体的Co-III形式可能会因价离位而显示出高自旋基态的额外稳定性。这样，这将代表有机系统中双重交换的独特示例。（c）2005由爱思唯尔有限公司出版。

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |2005年第17期|共4页
作者
Shultz DA; Kumar RK; Bin-Salamon S; Kirk ML;
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正文语种 eng
中图分类化学;
关键词
biradicals; valence tautomer; exchange coupling; double exchange; heterospin; spin diverse; magnetic susceptibility; INTRAMOLECULAR ELECTRON-TRANSFER; MAGNETIC CLUSTERS; TRANSITION; INTERCONVERSION; DELOCALIZATION; CATECHOLATE; STATES;

机译：双自由基;价互变异构体;交换耦合;双重交换;杂旋;自旋变化;磁化率;分子内电子转移;磁性团簇;转变;互变;脱钙;萘甲酸酯;状态;

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1. Valence tautomerization and exchange coupling in a cobalt-nitronylnitroxide-semiquinone complex [J] . Shultz DA, Kumar RK, Bin-Salamon S, Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 2005,第16a17期

机译：钴-亚硝酰基硝基氧化物-半醌络合物中的价互变异构和交换偶联
2. Exchange Coupling Interactions from the Density Matrix Renormalization Group and N-Electron Valence Perturbation Theory: Application to a Biomimetic Mixed-Valence Manganese Complex [J] . Roemelt Michael, Krewald Vera, Pantazis Dimitrios A. Journal of chemical theory and computation: JCTC . 2018,第1期

机译：从密度基质重型化基团和N型电子价扰动理论的交换偶联相互作用：应用于仿生混合效醛锰料
3. Electron Hopping through Double-Exchange Coupling in a Mixed-Valence Diiminobenzoquinone-Bridged Fe_2 Complex [J] . Alexandra I. Gaudette, Ie-Rang Jeon, John S. Anderson, Journal of the American Chemical Society . 2015,第39期

机译：双价二亚氨基苯醌桥联Fe_2配合物中双交换耦合的电子跃迁
4. 1D complex modelling with lateral exchanges coupling two reaches [C] . N. Goutal, C. Cheviet, G. Duvivier International Conference on Fluvial Hydraulics vol.1; 20060906-08; Lisbon(PT) . 2006

机译：一维复杂模型，横向交换耦合两个河段
5. Examining the vibrational couplings and dynamics in cyanide-bridged transition metal mixed valence complexes using ultrafast nonlinear infrared spectroscopy [D] . Slenkamp, Karla M. 2015

机译：使用超快非线性红外光谱检查氰化物桥联过渡金属混合价配合物的振动耦合和动力学
6. Probing the magnetic superexchange couplings between terminal CuII ions in heterotrinuclear bis(oxamidato) type complexes [O] . Mohammad A Abdulmalic, Saddam Weheabby, Francois E Meva, 2017

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7. The exchange coupling between the valence electrons of the fullerene cage and the electrons of the N atoms in N@C60^{-1,3} [O] . Udvardi, L. 2009

机译：富勒烯的价电子之间的交换耦合笼子和N @ C60 ^ { - 1,3}中N原子的电子
8. Nuclear Magnetic Resonance Evidence for Bridge Hydrogen Tautomerization (and/or Exchange) in Monocarbahexaborane(7) [R] . Onak, T., Leach, J. B. 1971

机译：monocarbahexaborane中桥氢氢互变异构（和/或交换）的核磁共振证据（7）

Valence tautomerization and exchange coupling in a cobalt-nitronylnitroxide-semiquinone complex

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