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(But2bipy)2(RMe, Et, CH2-cyclo-C6H11, CH2SiMe2CH:CH2, CH2SiMe3,CH2SiMe2Ph; But2bipy=4,4′-di-t-butyl-2,2′-bipyridyl) and trans)-RuR2(But2(But2 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.