| Abstract: | Three disulfoxide uranyl complexes UO2(DBSOB)(NO3)2] n (1), UO2(DBM)2]2(DBSOB) (2), and UO2(PMBP)2]2(DBSOB) (3) (DBSOB = 1,4-di(butylsulfinyl)butane, HDBM = dibenzoylmethane, HPMBP = 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone) were synthesized and characterized. The UO2(NO3)2] groups are connected by bridging disulfoxide ligands DBSOB to form a 1-D zigzag chain in 1. Two UO2(DBM)2] or UO2(PMBP)2] groups are connected by a bridging DBSOB to form the dimeric structures of 2 or 3, respectively. Complexes 1, 2, and 3 are the first structurally characterized disulfoxide–actinide compounds. Thermal stabilities of 1, 2, and 3 were investigated. |
