Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Mohamad Masarwa"'
Publikováno v:
Inorganica Chimica Acta. 270:151-161
The kinetics of O 2 binding to a vacant coordination site on the cobalt(II) ion have been determined, revealing a radical-like character for the reaction. Reversible oxygenation of Co(II) cyclidenes (C4, C5, C6, C8, C12-bridged and unbridged) was stu
Autor:
Norman Herron, Gary G. Christoph, Naohide Matsumoto, Piotr J. Chmielewski, James C. Stevens, P. Richard Warburton, Daryle H. Busch, Naidong Ye, Masaaki Kojima, Wei Wu, Mohamad Masarwa, Neil A. Stephenson, Dennis L. Nosco, Nathaniel W. Alcock, Patricia J. Jackson
Publikováno v:
Inorganic Chemistry. 33:910-923
The factors controlling the reversible dioxygen binding in lacunar cobalt(II) cyclidene complexes (Figure 1) have been examined. Extensive structural variations reveal that the dioxygen affinity can be controlled by both steric and electronic means.
Publikováno v:
Inorganic Chemistry. 32:3826-3835
The cobalt(II) cyclidene complexes are known to bind dioxygen reversibly under ambient conditions; however, the lifetime of the dioxygen adduct is limited by autoxidation. This paper describes a study of the autoxidation reactions of the cobalt(II) c
Autor:
Mohamad Masarwa, P. S. K. Chia, N. W. Alcock, Dennis L. Nosco, Wei Wu, Massaki. Kojima, P. R. Warburton, Daryle H. Busch
Publikováno v:
Inorganic Chemistry. 32:2736-2744
The synthesis of four novel cobalt(II) cyclidene complexes with long polymethylene bridges is described. These complexes have been found to reversibly bind dioxygen in a manner similar to that of their shorter bridged analogs. Dioxygen affinities are
Publikováno v:
Journal of Coordination Chemistry. 28:355-364
Infrared spectra were obtained for dioxygen adducts of a series of cobalt(II) and iron(II) cyclidene complexes with 1-methylimidazole as the axial base. The v o-o bands were located in the range 1137–1163 cm−1, and their identity was confirmed by
Publikováno v:
Inorganic Chemistry. 29:5031-5035
The reaction of {sm bullet}CH{sub 3} free radicals with Cu{sup II}(NH{sub 2}CH{sub 2}CO{sub 2}{sup {minus}}){sub 2} in aqueous solutions was studied. The formation of the unstable intermediate (NH{sub 2}CH{sub 2}CO{sub 2}{sup {minus}}){sub 2}Cu{sup I
Publikováno v:
Chemical Communications. :1451
The kinetics of O2 binding to a demonstrably vacant coordination site on a cobalt(II) ion are determined, revealing a radical-like character for the reaction, with a very low activation barrier (ca. 1–2 kcal mol–1) and large entropically controll