| Abstract |
Reaction of uranyl nitrate hexahydrate with 3-(2-(2,4-dioxopentan-3-ylidene)hydrazinyl)-2-hydroxybenzenesulfonic acid (H3L) and bis((E)-phenyldiazenyl)methanone (bpm) yields mononuclear zwitterionic uranyl complex, [UO2(HL)(bpm)(H2O)(2)]center dot 3H(2)O (1), which was characterized by IR, ESI-MS spectroscopies, and elemental and X-ray single-crystal analyses. In 1, the uranium center is in distorted pentagonal bipyramidal geometry with HL2- and bpm ligands coordinated in equatorial plane. The coordination to uranyl and intramolecular hydrogen bonding assist the tautomerization of bpm and formation of zwitterion. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved. |
