描述了锰和铬金属卟啉及其制备的杂化磁性纳米复合材料的合成和完整表征。通过将O 2或H 2 O 2用作氧化剂,它们在均相和非均相顺序环氧化/ CO 2环加成反应中的应用显示出高活性和选择性,可直接从烯烃制备各种环状碳酸酯。锰和铬纳米复合材料的组合使我们为开发可重复使用的双重催化体系(将烯烃转化为环状碳酸酯)奠定了基石。
Ferromagnetic coupling in d<sup>1</sup>–d<sup>3</sup> linear oxido-bridged heterometallic complexes: ground-state models of metal-to-metal charge transfer excited states
作者:Tao Huang、Xinyuan Wu、Xiao Song、Hao Xu、Tatyana I. Smirnova、Walter W. Weare、Roger D. Sommer
DOI:10.1039/c5dt02719e
日期:——
Linear heterobimetallic oxido-bridged d1–d3 compounds are described which are proposed as models for magnetic coupling of MMCT excited states.
Neely, Frank L.; Bottomley, Lawrence A., Inorganic Chemistry, 1997, vol. 36, # 24, p. 5432 - 5434
作者:Neely, Frank L.、Bottomley, Lawrence A.
DOI:——
日期:——
Stereoelectronic Aspects of Inter-Metal Nitrogen Atom Transfer Reactions between Nitridomanganese(V) and Chromium(III) Porphyrins
作者:Lawrence A. Bottomley、Frank L. Neely
DOI:10.1021/ic960919c
日期:1997.11.1
Reactions of nitridomanganese(V) porphyrins with chromium(III) porphyrins resulted in the irreversible formation of nitridochromium(V) porphyrins and manganese(III) porphyrins. The progress of these reactions has been followed spectrophotometrically, electrochemically, and spectroscopically by EPR. Kinetic analysis of the spectrophotometric data obtained during these reactions for a variety of substituted porphyrins showed the reactions to be first order in each of the reactants. Rate constants were dependent upon the electronic and steric effects of the porphyrin substituent, upon the identity of the anion bound to the chromium(III) reactant, and upon the solvent dielectric constant. We propose that the mechanism of these nitrogen atom transfer reactions involves the nucleophilic attack of the nitridomanganese porphyrin donor on the cationic chromium(III) porphyrin acceptor facilitating a net, two-electron redox process mediated by a heterobimetallic mu-nitrido intermediate. This report represents the first systematic study of the stereoelectronic effects involved in the complete, inter-metal nitrogen atom transfer between two metalloporphyrins.
Liston, David J.; West, Bruce O., Inorganic Chemistry, <hi>1985</hi>, vol. 24, # 10, p. 1568 - 1576