The Synthesis of Oxo-Bridged Cr^III-O-V^V Compounds

Abstract

Cr^IVO ( tpp = dianion of 5,10,15,20-tetraphenylporphyrin) can undergo redox reactions with V^IVO(L)₂ [L = anions of quinolin-8-ol (Q) or pentane-2,4-dione ( acac )] to yield oxo -bridged complexes (tpp) Cr^IIIOV^V (L)₂. The presence of Cr^III and V^V ions is supported by magnetic and e.s.r . measurements.