60921-35-9Relevant academic research and scientific papers
Aryl(pentachlorophenyl)nickel(II) complexes. Lack of free rotation about tolyl-nickel bonds and lack of ortho effect in carbonylation
Wada, Masanori,Kusabe, Koji,Oguro, Keisuke
, p. 446 - 449 (2007/10/13)
A series of complexes of the type trans-R(C6Cl5)Ni(PPhMe2)2 (where R = aryl) was prepared. Their 1H NMR spectra indicate that both R = o-tolyl and m-tolyl groups are oriented perpendicularly to the nickel coordination plane. Reaction of carbon monoxide with these complexes gave, under mild conditions, R(C6Cl5)CO for R = aryl groups including o-tolyl but not for 2-furyl and its analogues. The o-tolyl complex was exceptionally stable toward thermal reductive elimination in tetrachloroethylene under air. Factors affecting the relative reactivities of these complexes are discussed, based mainly on the early explanation for the so-called ortho effect .
