The photochemistry of rhenium hydrides. A flash photolytic investigation of the transients in the photochemistry of tris(dimethylphenylphosphine)pentahydridorhenium(V)
作者： S. Muralidharan , G. Ferraudi , Mark A. Green , Kenneth G. Caulton
DOI: 10.1016/S0022-328X(00)98632-7
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摘要: Abstract The photochemistry of ReH 5 P 3 , (P ≡ PMe 2 Ph) has been investigated by laser and conventional flash photolysis. first species observed in photolysis the rhenium complex saturated hydrocarbons assigned as an heptacoordinated 16-electron complex, which is found to react with at diffusion-controlled rate. However, for benzene such replaced another metastable product, (C 6 H ), proposed be a η -C complex. At 10 −5 M Re, isomerization possibly elimination hydrogen subsequent unimolecular steps can precede dimerization, also observed. transient transformations have correlated previous observations during continuous photolysis, including coordination simple olefins H/D exchange arenes. Kinetic measurements reveal that forms dimetallic reaction not (unsaturated) transient.
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sci-hub.se 参考文章(15)
P. Meakin, L. J. Guggenberger, W. G. Peet, E. L. Muetterties, J. P. Jesson, Stereochemically nonrigid eight-coordinate molybdenum and tungsten tetrahydrides Journal of the American Chemical Society. ,vol. 95, pp. 1467- 1474 ,(1973) , 10.1021/JA00786A020
Richard D. Small, Juan C. Scaiano, Reaction of type II biradicals with paraquat ions. Measurement of biradical lifetimes The Journal of Physical Chemistry. ,vol. 81, pp. 828- 832 ,(1977) , 10.1021/J100524A005
A Dedieu, I Hyla-Kryspin, Stabilization of three coordinate d8 metal complexes through intramolecular ligand-metal interactions: A theoretical study of the ion [Rh(PPh3)3]+ Journal of Organometallic Chemistry. ,vol. 220, pp. 115- 123 ,(1981) , 10.1016/S0022-328X(00)83108-3
David A. Roberts, Gregory L. Geoffroy, Definitive examples of polyhydride complexes which do not eliminate H2 in the primary photochemical reaction. Photodissociation of PR3 from [ReH3(PR3)4] and [ReH5(PR3)3] complexes Journal of Organometallic Chemistry. ,vol. 214, pp. 221- 231 ,(1981) , 10.1016/S0022-328X(00)86632-2
Andrew H. Janowicz, Robert G. Bergman, Carbon-hydrogen activation in completely saturated hydrocarbons: direct observation of M + R-H .fwdarw. M(R)(H) Journal of the American Chemical Society. ,vol. 104, pp. 352- 354 ,(1982) , 10.1021/JA00365A091
D. J. Brauer, C. Krueger, Bonding of aromatic hydrocarbons to nickel(0). Structure of bis(tricyclohexylphosphine)(1,2-.eta.2-anthracene)nickel(0)-toluene Inorganic Chemistry. ,vol. 16, pp. 884- 891 ,(1977) , 10.1021/IC50170A033
Yohannes W. Yared, Susan L. Miles, Robert Bau, Christopher A. Reed, The first formally three-coordinate d8 complex: tris(triphenylphosphine)rhodium(I) perchlorate and its novel structure Journal of the American Chemical Society. ,vol. 99, pp. 7076- 7078 ,(1977) , 10.1021/JA00463A059
M. A. Green, J. C. Huffman, K. G. Caulton, Photochemistry of transition-metal polyhydrides: dimerization of tris(dimethylphenylphosphine)pentahydrorhenium following photodissociation of phosphine Journal of the American Chemical Society. ,vol. 103, pp. 695- 696 ,(1981) , 10.1021/JA00393A046
Mark G. Bradley, David A. Roberts, Gregory L. Geoffroy, Photogeneration of reactive [ReH(diphos)2]. Its reversible coordination of carbon dioxide and activation of aromatic carbon-hydrogen bonds Journal of the American Chemical Society. ,vol. 103, pp. 379- 384 ,(1981) , 10.1021/JA00392A023
Peter Grebenik, Anthony J. Downs, Malcolm L. H. Green, Robin N. Perutz, Infrared spectroscopic evidence for photochemical generation of the metallocenes [(η-C5H5)2M](M = Mo or W) in low-temperature matrices Journal of The Chemical Society, Chemical Communications. pp. 742- 744 ,(1979) , 10.1039/C39790000742