Synthesis and characterization of niobium(IV) porphyrins. Formation and spectroscopic properties of dioxygen adducts of niobium(IV) porphyrins
作者:Philippe Richard、Roger Guilard
DOI:10.1039/c39830001454
日期:——
The niobium(IV) porphyrins NbIV(X)2(por) have been prepared from NbV(X)3(por)[por = meso-tetraphenylporphinato (TPP), meso-tetra-m-tolylporphinato (TMTP), or meso-tetra-p-tolylporphinato (TPTP); X = Cl or Br]; irreversible oxygenation of these low-valent porphyrins yields adducts such as NbV(X)2(O2)(TPP) and e.s.r. and i.r. data show that the niobium–O2 bonding in the dioxygen complexes is best described
铌(IV)卟啉的Nb IV(X)2(POR)已经被选自Nb制备V(X)3(POR)[POR =内消旋-四苯基卟啉(TPP),内消旋-四-米-tolylporphinato(TMTP),或中四-对-甲苯基卟啉(TPTP); X = Cl或Br];这些低价卟啉的不可逆氧化产生加合物,例如Nb V(X)2(O 2)(TPP)和esr,ir数据表明,双氧配合物中铌-O 2的键合最好用超氧化物形式来描述。