[4- tBu-2,6-{P(O)(O iPr) ₂} ₂C ₆H ₂Sn(PPh ₃)Cr(CO) ₅]ClO ₄ – a salt containing a cationic triphenylphosphane-stabilized organostannylene transition metal complex

摘要

The isolation and molecular structure of bis(di- iso -propoxyphosphonyl)-4- tert -butyl]phenyl}tin triphenylphosphane perchlorate chromium pentacarbonyl, 2 , is reported. It is the first example of an ionic compound containing an organostannylene transition metal complex cation stabilized by a phosphane donor. Slow reaction of compound 2 in acetonitrile gave trans -bis-triphenylphosphane chromium tetracarbonyl, trans -(Ph_(3)P)_(2)Cr(CO)_(4), in a new crystalline modification.