Synthesis, crystal structure and two-dimensional infrared correlation spectroscopy of a layer-like transition metal (TM)-oxalate templated polyoxovanadium borate
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002 (China)
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002 (China) and State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)
A novel polyoxometalate (POM) Na{sub 2}(H{sub 2}en){sub 2}{l_brace}(VO){sub 10}[B{sub 14}O{sub 30}(OH){sub 2}]{sub 2}{r_brace}{l_brace}Mn{sub 4}(C{sub 2}O{sub 4}) [B{sub 2}O{sub 4}(OH){sub 2}]{sub 2}{r_brace}Mn(H{sub 2}O){sub 2}.(H{sub 3}O){sub 12}(H{sub 2}O){sub 19}1 (en=ethylenediamine), which is a layer-like transition metal (TM) oxalate templated polyoxovanadium borate, has been synthesized under hydrothermal conditions and characterized by EPR, elemental analysis, thermal analysis, single crystal X-ray diffraction and 2D IR correlation spectroscopy studies, respectively. This compound crystallized in the triclinic space group P1-bar with a=14.3842(4)A, b=14.6837(3)A, c=15.8681(4)A, {alpha}=64.48(1){sup o}, {beta}=64.68(1){sup o}, {gamma}=63.93(1){sup o}, V=2596.80(11)A{sup 3} and Z=2. The cluster anion with an open central cavity has a central band of ten edge-sharing VO{sub 5} square pyramids, which is capped top and bottom by two crown-like polyborate ligands of formula [B{sub 14}O{sub 30}(OH){sub 2}]{sup 20-}. There is a fragment of {l_brace}Mn{sub 4}(C{sub 2}O{sub 4})[B{sub 2}O{sub 4}(OH){sub 2}]{sub 2}{r_brace}{sup 2-} fixed in the central cavity as a guest part. The cluster units are connected to form a two-dimensional (2D) framework by octahedral Mn(II) and Na{sup +} sites. In addition, we first introduce the generalized 2D correlation spectroscopy to explore the POMs and obtain the dynamic information about structural changes of POMs.
- OSTI ID:
- 20784798
- Journal Information:
- Journal of Solid State Chemistry, Vol. 178, Issue 11; Other Information: DOI: 10.1016/j.jssc.2005.09.017; PII: S0022-4596(05)00415-9; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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