Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Nita A. Lewis"'
Publikováno v:
Inorganica Chimica Acta. 225:89-93
The first use of pressure-tuning spectroscopy as a diagnostic tool in the evaluation of an intervalence transition band to determine the number of electrons transferred is described. The trinuclear complex [(CN)5FeCNPt(NH3)4NCFe(CN)5]4− was subject
Autor:
Ghazala Ali, Nita A. Lewis
Publikováno v:
Inorganica Chimica Acta. 167:5-13
The Cr(II) reduction of [Co(bpy)3]3+ proceeds by a series of steps which are accounted for by a complex and highly unusual mechanism. The chromium(III) product of the reaction is a dimer formulated as [Cr2(bpy)(OH)2(OH2)6]4+. The cobalt products incl
Autor:
Nita A. Lewis, Ghazala Ali
Publikováno v:
ChemInform. 21
The Cr(II) reduction of [Co(bpy)3]3+ proceeds by a series of steps which are accounted for by a complex and highly unusual mechanism. The chromium(III) product of the reaction is a dimer formulated as [Cr2(bpy)(OH)2(OH2)6]4+. The cobalt products incl
Autor:
Nita A. Lewis, Yaw S. Obeng
Publikováno v:
ChemInform. 21
Autor:
Amanda M. Ray, Nita A. Lewis
Publikováno v:
Inorganica Chimica Acta. 132:49-59
The Cr(II) reduction of Co(ptdn)3 (ptdn pentane- 2,4-dionato) was studied in various acetone/water mixtures. The activation parameters were measured over a temperature range of 25–45 °C and were found to vary in a complex, non-linear fashion.
Publikováno v:
Journal of the American Chemical Society. 111:924-927
Autor:
Nita A. Lewis, Robert J. Balahura
Publikováno v:
Canadian Journal of Chemistry. 57:1765-1771
The chromium(II) reduction of the complexes en2Co(3-acetyl-ptdn)2+ (1) and en2Co(2-acetyl-btdn)2+ (2) has been studied. Both complexes obey the rate law [Formula: see text]At 25 °C, I = 1.0 M (LiClO4), k = (4.5 ± 0.2) × 10−4 M−1 s−1, ΔH≠
Publikováno v:
Inorganica Chimica Acta. 99:169-176
The Cr(II) reduction of [Co(bipy)2(ptdn)2+ (bipy = 2,2t-bipyridine and ptdn = pentane-2,4-dione) proceeded too rapidly to be detected by the stopped-flow method and a lower limit of 3 × 104 M−1 s−1 (μ = 0.10 M (LiClO4)) and [H+] = 0.030 M was c
Autor:
Ananda M. Ray, Nita A. Lewis
Publikováno v:
Inorganic Chemistry. 23:3698-3704
Observation de 3 voies reactionnelles: sphere externe, sphere interne monopontee, sphere interne dipontee
Publikováno v:
Canadian Journal of Chemistry. 60:1143-1147
The Pd(II)-catalysed alkylation of ferrocene with acrylonitrile has been reinvestigated. We were not able to prepare the 1,1′-bis-(2-cyanovinyl)ferrocene using1,1′-bis(chloromercuri)ferrocene and Pd(II) under stoichiometric conditions. Using etha