Studies on the Complex of Actinide Elements with Crown Ether (Ⅲ)——The Crystal Structure of [UO2(NO3)2(H,O]·(B15C5)

Abstract

Abstract: The title complex crystallizes in triclinic, space group P1 with Z = 2.Lattice parameters are:a=8.468(2),b=8.787(2),c=16.674(4)Å,α=74.91(4)°,β=82.45(3)°,γ=69.84 (2)°, V=1123.4 Å³.The structure was solved by Patterson and Fourier techniques and refined by full-matrix least-squares to R=0.032 based on 4300 observed reflections.The linear uranyl group is perpendicular to a equatorial plane formed by six oxygen atoms, of which two from two water molecules, four from two bidentate nitrate groups.The coordination polyhedron takes a slight distored hexagonal bipyramid arrangement.The neutral UO₂(NO₃)₂(H₂O)₂ units connect with crown ether by hydrogen bonding through intermediary water molecules.

Key words: Uranyl nitrate, Benzo-15-crown-5, Complex, Crystal structure

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Wang Xin, Zhu Yin, Gan Xinmin, Tang Ning, Tan Minyu . Studies on the Complex of Actinide Elements with Crown Ether (Ⅲ)——The Crystal Structure of [UO₂(NO₃)₂(H,O]·(B15C5)[J]. Chem. J. Chinese Universities, 1989, 10(10): 1047.

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Studies on the Complex of Actinide Elements with Crown Ether (Ⅲ)——The Crystal Structure of [UO₂(NO₃)₂(H,O]·(B15C5)

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