Abstract
Synthesis, IR spectral study, and X-ray diffraction analysis of crystals of UO2(C4H4O4) · C3H6N2O] (I) and [UO2(C4H4O4) · C4H9NO] (II) were performed. Both compounds are crystallized in monoclinic syngony with unit cell parameters: a = 7.7582(1) A, b = 10.1601(2) A, c = 14.6234(3) A, β = 103.753(1)°, space group P21/c, Z = 4, R = 0.0219 (I); a = 8.2894(4) A, b = 12.3667(5) A, c = 12.0728(4) A, β = 96.464(2)°, space group P21/n, Z = 4, R = 0.0330 (II). Complexes [UO2(C4H4O4)L] (L = C3H6N2O or C4H9NO) in the crystals of I and II are related to crystal-chemical group A(K21-4)M1 (A = UO22+, K21-4 = C4H4O42−, M1 = L) of uranyl complexes and have layered structure. The effect of succinate ion conformation on the topology of all known complexes [UO2(C4H4O4)L] is discussed.
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