Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96325
Type: Artigo de periódico
Title: Photomicrocalorimetry: Photosubstitution Of Carbonyl By Phosphites In [mn(η5-c5h4ch3)(co)3]
Author: Dias P.B.
Teixeira C.
Dias A.R.
de Alencar Simoni J.
Martinho Simoes J.A.
Abstract: A photomicrocalorimeter is described for studies of reactions involving oxygen and moisture-sensitive compounds in organic solvents. This calorimeter was used to investigate the thermochemistry of photochemical substitutions of a carbonyl in [Mn(η5C5H4CH3)(CO)3] by P(OR)3 (R Ph or 1Pr). The measured reaction enthalpies in heptane (λ = 400 nm), ΔHr = -15.7 ± 0.5 and -18.6 ± 0.9 kJ mol-1, respectively, were identified with the bond dissociation enthalpy differences D(MnCO) D[MnP(OPh)3] and D(MnCO) D[Mn-P(OiPr)3] in solution. These results are discussed in terms of the basicity of the phosphates, spectroscopic data of the complexes (CO stretching frequencies), and the available thermochemical data for other transition metal-phosphorus(III) ligand interactions. © 1994.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/0022-328X(94)88191-X
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0041578856&partnerID=40&md5=7765563fa2afb759670fe49e27eaf716
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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