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Title: Two new polyoxometalate-based hybrids consisting of Keggin-type cluster modified by (Ag{sub 4}) group

Abstract

Two new supramolecular polyoxometalate compounds [Ag{sub 2}(mbpy){sub 3}][Ag(mbpy){sub 2}][PW{sub 12}O{sub 40}] (1) and [Ag{sub 2}(mbpy){sub 3}]{sub 2}[SiW{sub 12}O{sub 40}] (2) (mbpy=4,4'-dimethyl-2,2'-dipyridyl), have been hydrothermally synthesized and characterized by IR, TG, and single-crystal X-ray diffraction techniques. The structural feature of 1–2 is in the cationic moiety of a tetra-core (Ag{sub 4}) cluster through weak Ag…Ag interactions. The silver(I) centers show three-, four- and five-coordinated geometries. In 1 the tetrameric silver atoms in ([Ag{sub 2}(mbpy){sub 3}]{sub 2}){sup 4+} covalently bind to [PW{sub 12}O{sub 40}]{sup 3−} anion via Ag3O bonds, while there is only intermolecular hydrogen bonding between ([Ag{sub 2}(mbpy){sub 3}]{sub 2}){sup 4+} and [SiW{sub 12}O{sub 40}]{sup 4−} in 2. The coordination environments of the tetrameric silver cations have a great influence on the structure richness of the Keggin-based hybrids. The fluorescence properties of compounds 1 and 2 also have been discussed. - Graphical abstract: New polyoxometalate-based hybrids consisting of Keggin-type clusters modified by (Ag{sub 4}) groups had been synthesized and characterized, and their photoluminescence properties were also discussed. Display Omitted - Highlights: • Two Keggin-type polyoxometalates consisting of (Ag{sub 4}) clusters through weak Ag…Ag interactions have been synthesized. • There exist face-to-face and dot-to-face π…π interactions in (Ag-ligand){sub 4} fragment. • Themore » fluorescence properties of (Ag{sub 4}) modified POMs are also discussed.« less

Authors:
;  [1];  [1];  [2]; ;  [1]
  1. College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024 (China)
  2. School of Chemistry, University of New South Wales, Sydney, New South Wales 2052 (Australia)
Publication Date:
OSTI Identifier:
22274162
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 207; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANIONS; FLUORESCENCE; HYBRIDIZATION; HYDROTHERMAL SYNTHESIS; INTERACTIONS; LIGANDS; MONOCRYSTALS; PHOTOLUMINESCENCE; SILVER; X-RAY DIFFRACTION

Citation Formats

Zhao, Xiaofang, Sun, Xiaowei, Han, Zhangang, Zhao, Chuan, Yu, Haitao, and Zhai, Xueliang. Two new polyoxometalate-based hybrids consisting of Keggin-type cluster modified by (Ag{sub 4}) group. United States: N. p., 2013. Web. doi:10.1016/J.JSSC.2013.09.023.
Zhao, Xiaofang, Sun, Xiaowei, Han, Zhangang, Zhao, Chuan, Yu, Haitao, & Zhai, Xueliang. Two new polyoxometalate-based hybrids consisting of Keggin-type cluster modified by (Ag{sub 4}) group. United States. doi:10.1016/J.JSSC.2013.09.023.
Zhao, Xiaofang, Sun, Xiaowei, Han, Zhangang, Zhao, Chuan, Yu, Haitao, and Zhai, Xueliang. Fri . "Two new polyoxometalate-based hybrids consisting of Keggin-type cluster modified by (Ag{sub 4}) group". United States. doi:10.1016/J.JSSC.2013.09.023.
@article{osti_22274162,
title = {Two new polyoxometalate-based hybrids consisting of Keggin-type cluster modified by (Ag{sub 4}) group},
author = {Zhao, Xiaofang and Sun, Xiaowei and Han, Zhangang and Zhao, Chuan and Yu, Haitao and Zhai, Xueliang},
abstractNote = {Two new supramolecular polyoxometalate compounds [Ag{sub 2}(mbpy){sub 3}][Ag(mbpy){sub 2}][PW{sub 12}O{sub 40}] (1) and [Ag{sub 2}(mbpy){sub 3}]{sub 2}[SiW{sub 12}O{sub 40}] (2) (mbpy=4,4'-dimethyl-2,2'-dipyridyl), have been hydrothermally synthesized and characterized by IR, TG, and single-crystal X-ray diffraction techniques. The structural feature of 1–2 is in the cationic moiety of a tetra-core (Ag{sub 4}) cluster through weak Ag…Ag interactions. The silver(I) centers show three-, four- and five-coordinated geometries. In 1 the tetrameric silver atoms in ([Ag{sub 2}(mbpy){sub 3}]{sub 2}){sup 4+} covalently bind to [PW{sub 12}O{sub 40}]{sup 3−} anion via Ag3O bonds, while there is only intermolecular hydrogen bonding between ([Ag{sub 2}(mbpy){sub 3}]{sub 2}){sup 4+} and [SiW{sub 12}O{sub 40}]{sup 4−} in 2. The coordination environments of the tetrameric silver cations have a great influence on the structure richness of the Keggin-based hybrids. The fluorescence properties of compounds 1 and 2 also have been discussed. - Graphical abstract: New polyoxometalate-based hybrids consisting of Keggin-type clusters modified by (Ag{sub 4}) groups had been synthesized and characterized, and their photoluminescence properties were also discussed. Display Omitted - Highlights: • Two Keggin-type polyoxometalates consisting of (Ag{sub 4}) clusters through weak Ag…Ag interactions have been synthesized. • There exist face-to-face and dot-to-face π…π interactions in (Ag-ligand){sub 4} fragment. • The fluorescence properties of (Ag{sub 4}) modified POMs are also discussed.},
doi = {10.1016/J.JSSC.2013.09.023},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 207,
place = {United States},
year = {2013},
month = {11}
}