Hydrothermal synthesis and structural characterization of two 1-D and 2-D Dawson-based phosphotungstates

Journal Article · Sat Mar 15 04:00:00 EDT 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.01.002· OSTI ID:21043935

Junwei, Zhao; Shoutian, Zheng ^[1]; Wei, Liu ^[2]

---

1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Graduate School of the Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)
2. College of Material Science and Engineering, Shandong University of Technology, Zibo, Shangdong 255049 (China)

Two new Dawson-based phosphotungstates (H{sub 2}en){sub 0.5}H[Cu(en){sub 2}(H{sub 2}O)]{sub 2}{l_brace}[Cu(en){sub 2}]({alpha}{sub 1}-P{sub 2}W{sub 17}CuO{sub 61}){r_brace}.8H{sub 2}O (1) (en=ethylenediamine) and [4,4'-H{sub 2}bpy]{sub 2}{l_brace}[Cu(4,4'-bpy){sub 3}][Cu(4,4'-bpy){sub 4}(H{sub 2}O){sub 2}]{sub 2}[Cu(4,4'-bpy)][{alpha}-P{sub 2}W{sub 1=} 8O{sub 62}]{sub 2}{r_brace}.6H{sub 2}O (2) (4,4'-bpy=4,4'-bipyridine) have been hydrothermally synthesized and structurally characterized. 1 crystallizes in the triclinic space group P-1 with a=11.7626(17), b=13.246(2), c=29.350(5) A, {alpha}=87.355(5), {beta}=79.583(5), {gamma}=66.993(3){sup o}, V=4138.3(11) A{sup 3}, Z=2, GOF=1.089, R{sub 1}=0.0563 and wR{sub 2}=0.1505, whereas 2 belongs to the orthorhombic space group Iba2 with a=22.277(8), b=47.04(2), c=22.153(8) A, V=23215(17) A{sup 3}, Z=4, GOF=1.051, R{sub 1}=0.0627 and wR{sub 2}=0.1477. 1 consists of a 1-D linear chain structure constructed from monocopper{sup II}-substituted Dawson polyoxoanions, while 2 represents the first 2-D sheet-like structure with a (4,4)-connected topological net built up from plenary Dawson-type polyoxoanions and Cu{sup II}-4,4'-bpy complex cations in polyoxometalate chemistry. - Graphical abstract: Two Dawson-based phosphotungstates (H{sub 2}en){sub 0.5}H[Cu(en){sub 2}(H{sub 2}O)]{sub 2}{l_brace}[Cu(en){sub 2}]({alpha}{sub 1}-P{sub 2}W{sub 17}CuO{sub 61}){r_brace}.8H{sub 2}O (1) and [4,4'-H{sub 2}bpy]{sub 2}{l_brace}[Cu(4,4'-bpy){sub 3}][Cu(4,4'-bpy){sub 4}(H{sub 2}O){sub 2}]{sub 2}[Cu(4,4'-bpy)][{alpha}-P{sub 2}W{sub 1=} 8O{sub 62}]{sub 2}{r_brace}.6H{sub 2}O (2) have been hydrothermally synthesized and structurally characterized. 1 consists of a 1-D linear chain structure constructed from monocopper-substituted Dawson polyoxoanions, while 2 represents the first 2-D sheet-like structure with a (4,4)-connected topological net built up from saturated Dawson-type polyoxoanions and Cu{sup II}-4,4'-bpy complex cations in polyoxometalate chemistry.

• OSTI ID: 21043935
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 3 Vol. 181; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
BIPYRIDINES
CATIONS
COPPER COMPLEXES
HYDROTHERMAL SYNTHESIS
INORGANIC POLYMERS
ORTHORHOMBIC LATTICES
SPACE GROUPS
TRICLINIC LATTICES
TUNGSTATES