Lanthanide complexes of the monovacant Dawson polyoxotungstate [{alpha}{sub 2}-As{sub 2}W{sub 17}O{sub 61}]{sup 10-} with 1D chain: Synthesis, structures, and photoluminescence properties

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.05.044· OSTI ID:21128474

Xinyu, Zhao ^[1]; Yuanhang, Ren; Jianfang, Cao; Ruige, Cao ^[1]; Kuizhan, Shao ^[2]

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1. Key Laboratory of Polyoxometalates Science of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun City, 130024 Jilin (China)
2. Faculty of Chemistry, Institute of Functional Material Chemistry, Northeast Normal University, Changchun City, 130024 Jilin (China)

Six new lanthanide complexes, (H{sub 3}O)[Ln{sub 3}(H{sub 2}O){sub 17}({alpha}{sub 2}-As{sub 2}W{sub 17}O{sub 61})].nH{sub 2}O ((1) Ln=Ce{sup III} and n{approx}13; (2) Ln=Pr{sup III} and n{approx}9; (3) Ln=Nd{sup III} and n{approx}14; (4) Ln=Sm{sup III} and n{approx}8; (5) Ln=Eu{sup III} and n{approx}4; (6) Ln=Gd{sup III} and n{approx}7), have been isolated by conventional solution method and characterized by elemental analysis, IR spectroscopy and single crystal X-ray diffraction. All the complexes are isomorphic and crystallize in the triclinic space group P-1. These complexes are 1D chain-like structures constructed by lanthanide cations and monovacant Dawson-type [{alpha}{sub 2}-As{sub 2}W{sub 17}O{sub 61}]{sup 10-} polyoxoanions. The striking feature of the structures is that there are three kinds of coordination environments for lanthanide cations, which are responsible for the formation of polymeric structures. Photoluminescence measurements reveal that 4 and 5 exhibit orange and red fluorescent emission at room temperature, respectively. - Graphical abstract: Six new lanthanide complexes based on monovacant Dawson-type tungstoarsenates have been synthesized. These complexes are one-dimensional chain-like structures constructed by lanthanide cations and [{alpha}{sub 2}-As{sub 2}W{sub 17}O{sub 61}]{sup 10-} anions. There are three kinds of coordination environment for lanthanide cations. Photoluminescence measurement reveals that 4 and 5 exhibit orange and red fluorescent emission at room temperature, respectively.

• OSTI ID: 21128474
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 9 Vol. 181; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ARSENATES
CATIONS
CERIUM COMPLEXES
EUROPIUM COMPLEXES
GADOLINIUM COMPLEXES
INFRARED SPECTRA
MONOCRYSTALS
NEODYMIUM COMPLEXES
PHOTOLUMINESCENCE
PRASEODYMIUM COMPLEXES
SAMARIUM COMPLEXES
SPACE GROUPS
SYNTHESIS
TEMPERATURE RANGE 0273-0400 K
TRICLINIC LATTICES
TUNGSTATES
X-RAY DIFFRACTION