Treatment of CptRh(PMe3)Cl2(1) (Cpt=5η-tBu2C5H3) with [Et4N]2Se6 in DMF solution leads to the for-mation of cyclo-tetraselenido half-sandwich rhodium com-plexes CptRh(PMe3)(Se4) (2). The elimination of 2 with ex-cess...Treatment of CptRh(PMe3)Cl2(1) (Cpt=5η-tBu2C5H3) with [Et4N]2Se6 in DMF solution leads to the for-mation of cyclo-tetraselenido half-sandwich rhodium com-plexes CptRh(PMe3)(Se4) (2). The elimination of 2 with ex-cess of nBu3P results in cyclo-diselenido rhodium complex CptRh(PMe3)(Se2) (3). 1 reacts with [nBu4N]2Te5 in DMF solution to yield cyclo-ditellurido rhodium complex CptRh (PMe3)(Te2) (4) in which carbon atom from CH2C12 can be inserted into Te-Te bond to form CptRh(PMe3)(TeCH2Te) (5). The new complexes 2-5 have been characterized by their IR, EI-MS, and 1H, 13C, 31P, 103Rh NMR spectra as well as ele-mental analysis.展开更多
基金This work was supported by the National Natural Science Foundation of China (Grant No. 29925101) also by the Special Founds for the State Major Basic Research Projects (Grant No. G1999064800).
文摘Treatment of CptRh(PMe3)Cl2(1) (Cpt=5η-tBu2C5H3) with [Et4N]2Se6 in DMF solution leads to the for-mation of cyclo-tetraselenido half-sandwich rhodium com-plexes CptRh(PMe3)(Se4) (2). The elimination of 2 with ex-cess of nBu3P results in cyclo-diselenido rhodium complex CptRh(PMe3)(Se2) (3). 1 reacts with [nBu4N]2Te5 in DMF solution to yield cyclo-ditellurido rhodium complex CptRh (PMe3)(Te2) (4) in which carbon atom from CH2C12 can be inserted into Te-Te bond to form CptRh(PMe3)(TeCH2Te) (5). The new complexes 2-5 have been characterized by their IR, EI-MS, and 1H, 13C, 31P, 103Rh NMR spectra as well as ele-mental analysis.
