Synthesis and crystal structure of oxonitrate complexes Cs[VO{sub 2}(NO{sub 3}){sub 2}], Cs[MoO{sub 2}(NO{sub 3}){sub 3}], and MoO{sub 2}(NO{sub 3}){sub 2}
- Moscow State University (Russian Federation)
Cs[VO{sub 2}(NO{sub 3}){sub 2}] (I), MoO{sub 2}(NO{sub 3}){sub 2} (II), and Cs[MoO{sub 2}(NO{sub 3}){sub 3}] (III) complexes have been obtained by crystallization from nitric solutions and studied by single-crystal X-ray diffraction. Complexes I and II contain infinite zigzag chains of similar compositions, [VO{sub 2}(NO{sub 3}){sub 2}]{sup -} and [MoO{sub 2}(NO{sub 3}){sub 2}], in which V and Mo atoms form, respectively, trigonal- and pentagonal-bipyramidal polyhedra. Each of these polyhedrons also contains one terminal and two bridge O atoms and two terminal NO{sub 3} groups which are monodentate and bidentate in complexes I and II, respectively. Complex III has an island structure and consists of Cs{sup +} cations and [MoO{sub 2}(NO{sub 3}){sub 3}]{sup -} anions, in which the Mo atom is surrounded by one bidentate NO{sub 3} group and two monodentate NO{sub 3} groups and two terminal O atoms in the cis-positions; oxygen atoms form a polyhedron in the form of distorted octahedron. According to the ab initio calculation of isolated MoO{sub 2}(NO{sub 3}){sub 2} molecules in the gas phase and solution, the coordination environment of the Mo atom, similarly to the Cr(VI) atom in CrO{sub 2}(NO{sub 3}){sub 2}, is formed by two bidentate nitrate groups and two terminal O atoms (polyhedron- twisted trigonal prism).
- OSTI ID:
- 22051208
- Journal Information:
- Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 3 Vol. 55; ISSN 1063-7745; ISSN CYSTE3
- Country of Publication:
- United States
- Language:
- English
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