Complex of uranyl citraconate with dimethylacetamide: Synthesis and structure

Abstract

The complex [UO₂(C₅H₄O₄)(Dmа)] (I), where C₅H₄O₄^2– is citraconate ion and Dmа is dimethylacetamide, was synthesized and studied by single crystal X-ray diffraction analysis. The complex has layered structure and belongs to crystal-chemical group AQ²¹M¹ (A = UO₂²⁺, Q²¹ = C₅H₄O₄^2–, M¹ = Dmа) of uranyl complexes. Structural features of all the known uranyl complexes with citraconate anions are considered. Nonvalent interactions in the crystal structure of I are characterized using the method of molecular Voronoi–Dirichlet polyhedra. The IR spectrum of I is analyzed.