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Tetra-mu-alpha-alanine-bis[tetraaquagadolinium(III)] hexaperchlorate
Jinping Wang1, Ninghai Hu, Kuiyue Yang
1Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 159 Renmin Street, Changchun 130022, People's Republic of China.
Abstract:
The title complex, [Gd(2)(C(3)H(7)NO(2))(4)(H(2)O)(8)](ClO(4))(6), contains centrosymmetric dimeric [Gd(2)(Ala)(4)(H(2)O)(8)](6+) cations (Ala is alpha-alanine) and perchlorate anions. The four alanine molecules act as bridging ligands linking two Gd(3+) ions through their carboxylate O atoms. Each Gd(3+) ion is also coordinated by four water molecules, which complete an eightfold coordination in a square-antiprism fashion. The perchlorate anions and the methyl groups of the alanine ligands are disordered.