111432-22-5Relevant academic research and scientific papers
Reactivity of Rhenium(I) Pseudo-allyl Complexes with Heterocumulenes such as RNCS (R = Me or Ph, p-MeC6H4) and PhNCO. Part 1. Crystal Structure Determination of Two Isostructural Monothio- and Dithio-carbamate Rhenium(I) Complexes co-crystallized as >...
Rossi, Roberto,Marchi, Andrea,Duatti,Adriano,Magon, Luciano,Casellato, Umberto,Graziani,Rodolfo
, p. 2299 - 2304 (2007/10/02)
The compounds CHNC6H4Me-p) and react with an excess of PhNCO under non-anhydrous conditions to give the displacement of the starting chelate ligand and the formation of the carbamate complex C(NHPh)O>>.When the reaction is carried out under the same conditions with an excess of RNCS (R = Ph or p-MeC6H4) the monothio- and dithio-carbamate complexes > (1) and > (2) are obtained.The formation of complexes (2) proceeds via the intermediate formation of (1).A mixture of complexes (1b) and (2b) (R = Ph) gives rise to a crystallized compound, which X-ray analysis has allowed to be formulated as >.> where discrete molecules of two isostructural rhenium complexes are co-crystallized in the monoclinic cell, of space group P21, with a = 9.314(6), b = 22.976(4), c = 18.662(5) Angstroem, and β = 91.01(3) deg.In both molecules the Re is six-co-ordinate in a distorted octahedral environment with trans PPh3 groups, cis CO groups, and one bidentate ligand.Distances in the co-ordination sphere are: Re-P 2.42 (mean), Re-C 1.90 (mean), Re-S 2.52 (mean), Re-O 2.37 Angstroem.The ligand moieties are essentially planar in both complexes.
