作者:P.I. Van Vliet、G. Van Koten、K. Vrieze
DOI:10.1016/s0022-328x(00)83042-9
日期:1980.4
amidino group, a HgCl ligand and a N atom of an amidino group, which bridges the Rh-Hg bond. Various isomers are possible for compounds containing asymmetric amidino groups, depending on the size of the alkyl (R) group. For bulky R groups (CH(CH3)2) the two N-aryl groups are bonded to Rh and situated cis to Hg. For small R groups (CH3) two isomers are observed, one with the two NCH3 groups bonded to Rh
该组合物[(二烯)的配合物的RNC(Y)NR' 2 = CH(CH; Y = H - [R RhHgCl](二烯= 1,5-环辛二烯,降冰片二烯' 3)2 ; R = CH 3,CH(CH 3)2,p -CH 3 C 6 H 4; R'= p -CH 3 CH 3 C 6 H 4和Y = CH 3,R = R = p -CH 3 C 6 H 4)几乎被分离出来[(Diene)RhCl] 2反应的定量收率与[汞RNC(Y)NR' 2 ]。固态结构可能是二聚体,而溶液中的化合物肯定是单体。NMR数据表明,分子构型由由二齿二烯配位的铑原子,二齿a基,HgCl配体和桥接Rh-Hg键的an基的N原子组成。对于含有不对称a基的化合物而言,各种异构体都是可能的,具体取决于烷基(R)基团的大小。对于大体积的R基团(CH(CH 3)2),两个N-芳基基团键合至Rh,顺式键合至Hg。对于小的R基团(CH 3)