Calix[6] and [8]arene complexes of vanadium

摘要

The calixarenes tert-butylcalix[6]arene (H_6L) and tert-butylcalix[8]arene (H_8L') on treatment with [V(NBu~t)(OBu~t)_3] and [V(Ntolyl-p)(OBu~t)_3] respectively afford the novel metallocalix[6] and [8]areenes [{V(NBu~t)(thf)_(0.39)(Bu~tOH)_(0.61)}{VO(#MU#-O)}_2L][Bu~tNH_3] (1) and [V_2(NR')_2(H_2L)](2)