作者:Madeleine Helliwell、Jonathan D. Vessey、Roger J. Mawby
DOI:10.1039/dt9940001193
日期:——
The ligand arrangements in alkene complexes [Ru(CO)2(alkene)LL′][alkene =E- or Z-MeO2CCHCHCO2Me, L = L′= PMe2Ph or AsMe2Ph, or L = PMe2Ph, L′= P(OMe)3; alkene = H2CCH2, H2CCHCO2Me, E-NCCHCHCN, Z-MeO2CCHCClCO2Me, or E- or Z-MeO2CCHCPhCO2Me, L = L′= PMe2Ph] have been determined by IR and NMR spectroscopy and, in two instances, by X-ray crystallography. Three types of arrangement have been identified:
烯烃络合物[Ru(CO)2(烯烃)LL']中的配体排列[烯烃= E-或Z -MeO 2 CCH CHCO 2 Me,L = L'= PMe 2 Ph或AsMe 2 Ph,或L = PMe 2 Ph,L′= P(OMe)3;烯烃= H 2 C CH 2,H 2 C CHCO 2 Me,E -NCCH CHCN ,Z -MeO 2 CCH CClCO 2 Me或E-或Z -MeO 2 CCH CPhCO 2Me,L = L′= PMe 2 Ph]已经通过IR和NMR光谱法以及在两种情况下通过X射线晶体学测定。已经确定了三种类型的排列:根据烯烃取代基与配体L和L'之间的空间相互作用,讨论了它们的相对稳定性。在[Ru(CO)2(E -MeO 2 CCH CHCO 2 Me)(PMe 2 Ph)2 ]上进行的可变温度NMR研究表明,该络合物是通量的,但通量运动受到这些相同相互作用的限制。使用Z -MeO