The crystalline alpha,omega-dicarboxylate metal complex with the longest aliphatic chain to date: uranyl 1,15-pentadecanedioate

Pierre Thuéry (1) , Jack Harrowfield (2)

1 LCMCE - Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF)
2 ISIS - Institut de Science et d'ingénierie supramoléculaires

Under solvo-hydrothermal conditions, 1,15-pentadecanedioic acid reacts with uranyl ions to form the complex [H2NMe2]2[(UO2)2(C15)3] (1), in which the uranyl ions are tris-chelated by carboxylate groups and the well-ordered aliphatic chains are either all-trans or kinked. 1 crystallizes as a two-dimensional network of the bilayer type and with the {82.10} point symbol, the packing displaying alternate sheets containing either the ionic parts or stacks of aliphatic chains, at variance with the helicates or honeycomb networks previously obtained with other long-chain HOOC–(CH2)n–2–COOH dicarboxylic acids (n = 9–13) and bulkier counterions.

Domaines: Matériaux

Pierre Thuéry, Jack Harrowfield. The crystalline alpha,omega-dicarboxylate metal complex with the longest aliphatic chain to date: uranyl 1,15-pentadecanedioate. Dalton Transactions, 2017, 46, pp.13677-13680. ⟨10.1039/C7DT03273K⟩. ⟨cea-01591840⟩