Pseudohalogenogermylenes versus Halogenogermylenes: Difference in their Complexation Behavior towards Group 6 Metal Carbonyls |
| |
| Authors: | Mahendra Kumar Sharma Soumen Sinhababu Dhirendra Yadav Goutam Mukherjee Prof Gopalan Rajaraman Prof Selvarajan Nagendran |
| |
| Institution: | 1. Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India;2. Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India |
| |
| Abstract: | Pseudohalogenogermylenes (iBu)2ATI]GeY (Y=NCO 4 , NCS 5 ) show different coordination behavior towards group 6 metal carbonyls in comparison to the corresponding halogenogermylenes (iBu)2ATI]GeX (X=F 1 , Cl 2 , Br 3 ) (ATI=aminotroponiminate). The reactions of compounds 4 – 5 and 1 – 3 with cis‐M(CO)4(COD)] (M=Mo, W, COD=cyclooctadiene) gave trans‐germylene metal complexes {(iBu)2ATI]GeY}2M(CO)4 (Y=NCO, M=Mo 6 , W 11 ; Y=NCS, M=Mo 7 ) and cis‐germylene metal complexes {(iBu)2ATI]GeX}2M(CO)4 (M=Mo, X=F 8 , Cl 9 , Br 10 ; M=W, X=Cl 12 ), respectively. Theoretical studies on compounds 7 and 9 reveal that donor–acceptor interactions from Mo to Ge atoms are better stabilized in the observed trans and cis geometries than in the hypothetical cis and trans structures, respectively. |
| |
| Keywords: | germanium heterometallic complexes main group elements metallylenes transition metals |
|
|
