227450-32-0Relevant academic research and scientific papers
Synthesis, characterization and structures of the novel rhenium(IV) complexes trans-[ReCl4{PPh2(OMe)}2], trans-[ReCl4{PPh2(OEt)}2] and trans-[ReCl4(OPPh3)2]
Abram, Ulrich,Carballo, Rosa,Cabaleiro, Santiago,Garcia-Fontan, Soledad,Vazquez-Lopez
, p. 1495 - 1499 (1999)
trans-Tetrachlorobis(methyl-diphenylphosphinite)rhenium(IV) and trans-tetrachlorobis(ethyl-diphenylphosphinite)rhenium(IV) were obtained by recrystallization of the corresponding rhenium(III) phosphinite complexes, [ReCl3L3], in chlorinated solvents. The structures of the compounds consist of discrete molecules with trans-octahedral coordination geometry around the rhenium atom, having Re-P distances between 2.534(1) and 2.555(2) A and Re-Cl distances in the range 2.321(1)-2.336(1) A. trans-[ReCl4(OPPh3)2] is formed during the reaction of triphenyloxonium tetrafluoroborate with [ReNCl2(PPh3)2]. P-O bond lengths of 2.033(4) A have been found, while the Re-Cl bonds are 2.336(2) and 2.344(2) A, respectively.
