Synthesis and structures of two uranyl beta-diketonate complexes [UO_2(DBM)_2(DEDPU)] and [UO_2(PMBP)_2(DEDPU)]

摘要

Two new uranyl beta-diketonate complexes [UO_2(DBM)_2(DEDPU)] (1) and [UO_2(PMBP)_2(DEDPU)](CH_3C_6H_5)_(0.5) (2), (HDBM=dibenzoylmethane, HPMBP = l-phenyl-3-methyl-4-benzoyl-5-pyrazolone, DEDPU = N,N'-diethyl-N,N'-diphenylurea) were synthesized and characterized. The coordination geometries of the uranyl atoms in 1 and 2 are distorted pentagonal bipyramidal, coordinated by one oxygen atom of DBDPU molecule and four oxygen atoms of two chelating DBM molecules in 1 and PMBP molecules in 2.