Issue 10, 2011
From the journal:

CrystEngComm

New extended poly(oxomolybdophosphates) based on strontium(ii) linkers†

Kai Yu,ab   Wei-Lin Chen,c   Bai-Bin Zhou,*ab   Yang-Guang Li,*c   Yang Yu,a   Zhan-Hua Su,a   Song Gaoa  and  Ying Chena  

* Corresponding authors

a Key Laboratory of Synthesis of Functional Materials and Green Catalysis, College of Heilongjiang Province, School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150080, P. R. China
E-mail: bbzhou@hrbnu.edu.cn

b School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, P. R. China

c Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
E-mail: liyg658@nenu.edu.cn

Abstract

Four new poly(oxomolybdophosphates), Na[FeIII(2,2′-bpy)3]2[FeII2Sr2MoV12O24(OH)6(H2O)8(H2PO4)2(HPO4)2(PO4)4]·[PO4]·9H2O 1, [H2(bpp)]2[MnII2Sr2Mo12O24(OH)6(H2O)8(H2PO4)2(HPO4)2(PO4)4]·8H2O 2, [H2(4,4′-bpy)]2[CdII2Sr2Mo12O24(OH)6(H2O)6(H2PO4)2(HPO4)2(PO4)4]·5H2O 3 and [H2(4,4′-bpy)][MnII2Sr4Mo12O24(OH)6(H2O)12(HPO4)4(PO4)4]·8H2O 4 (2,2′-bpy = 2,2′-bipyridine, bpp = 1,3-bi(4-pyridyl)-propane, 4,4′-bpy = 4,4′-bipyridine), have been hydrothermally synthesized and structurally characterized by elemental analysis, TG, IR, UV-vis and single-crystal X-ray diffraction. All the compounds are based on the [P4Mo6O31]12− (abbreviated as [P4Mo6]) polyoxometalate units, which are further connected into sandwich-type dimeric units by various transition metal (TM) ions. In compounds 1–3, the dimeric {(TM)[P4Mo6]2} units are linked by new {Sr2TM} trinuclear fragments into one-dimensional (1-D) chains. These 1-D chains are further packed into various three-dimensional (3-D) supramolecular assemblies due to the use of different bipyridine-based structure-directing agents. In compound 4, the dimeric {(TM)[P4Mo6]2} units are linkered by an unprecedented {Sr4Mn} pentanuclear unit into new 3-D open framework, exhibiting a 64.82-nbo (niobium-oxide-like) topology. The electrochemical properties of these compounds were investigated.

Graphical abstract: New extended poly(oxomolybdophosphates) based on strontium(ii) linkers

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Article information

DOI
https://doi.org/10.1039/C0CE00727G
Article type
Paper
Submitted
15 Oct 2010
Accepted
07 Feb 2011
First published
01 Mar 2011

CrystEngComm, 2011,13, 3417-3424

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New extended poly(oxomolybdophosphates) based on strontium(II) linkers

K. Yu, W. Chen, B. Zhou, Y. Li, Y. Yu, Z. Su, S. Gao and Y. Chen, CrystEngComm, 2011, 13, 3417 DOI: 10.1039/C0CE00727G

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