Hydrothermal syntheses and crystal structures of new uranyl complexes: UO2( p -C7H4O2Br)2(H2O) and UO2( m -C7H4O2Br)2

Autor:	Sun Qingjin, Cai Yige, Liu Chiyang, Zhao Jian-she, Zhang Weiping, Miao Jianyu, Zhang Weihai, Ren Zhan-li
Rok vydání:	2008
Předmět:	chemistry.chemical_compound Crystallography Chemistry Hydrothermal reaction Materials Chemistry Crystal structure Physical and Theoretical Chemistry Uranyl Hydrothermal circulation Monoclinic crystal system
Zdroj:	Journal of Coordination Chemistry. 61:3350-3356
ISSN:	1029-0389 0095-8972
DOI:	10.1080/00958970802056248
Popis:	Two uranyl complexes, UO2(p-C7H4O2Br)2(H2O) and UO2(m-C7H4O2Br)2, are synthesized by hydrothermal method and their structures determined by single-crystal X-ray diffraction. UO2(p-C7H4O2Br)2(H2O): R = 0.0606, monoclinic, space group P2(1)/c, with a =19.8400(12) A, b = 8.8081(5) A, c = 10.0914(6) A, α = 90°, β = 92.687(2)°, γ = 90°, Z = 4, has a chair configuration with two cations. UO2(m-C7H4O2Br)2: R = 0.0333, monoclinic, space group P2(1)/c, with a = 5.1084(7) A, b = 17.642(3) A, c = 9.0716(13) A, α = 90°, β = 94.063(2)°, γ = 90(2)°, Z = 2, forms a 1D chain with the ligand (m-bromobenzoic acid) taking the bridging mode.
Databáze:	OpenAIRE
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