Dialkyl(4,4′-di-t-butyl-2,2′-bipyridyl)ruthenium(II): a new family of organoruthenium complexes; molecular structure of cis-RuEt2(But2bipy)2

Abstract

New dialkylruthenium complexes cis-RuR₂(Bu^t₂bipy)₂(RMe, Et, CH₂-cyclo-C₆H₁₁, CH₂SiMe₂CH:CH₂, CH₂SiMe₃,CH₂SiMe₂Ph; Bu^t₂bipy=4,4′-di-t-butyl-2,2′-bipyridyl) and trans)-RuR₂(Bu^t₂(Bu^t₂ bipy)₂(RCH₂CMe₂Ph), characterised by n.m.r. (¹H and ¹³C), mass spectrometry and, in the case of the diethyl derivative,X-ray diffractometry, display notable inertness (despite the availability, in most, of transferable hydrogens) due, proposedly, to their resistance to electron-transfer and their stereochemical rigidity.