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Articles by Dong-Mei Shi
Total Records ( 2 ) for Dong-Mei Shi
  Hong-Bo Liu , Yu Sun , Ya-Guang Chen , Fan-Xia Meng and Dong-Mei Shi
  Three neutral polyoxometalates [PVW11O40lcubM(phen)2H2Orcub2] · 3H2O (phen = 1,10’-phenanthroline, M=Co 1, Zn 2, Ni 3) are composed of water and the neutral Keggin-type polyoxometallate covalently linking a pair of transition metal complex fragments on opposite sides. The transition metal lies in the center of a distorted octahedron. Multi hydrogen-bonding interactions between coordinated waters of neutral polyoxometalate molecules and terminal oxygen atoms of Keggin units and between bridging oxygens of Keggin units and lattice water create a two dimensional layer and between the layers there exist van der Waals forces. The framework of the neutral molecule begins to decompose at ca 500°C. Compound 1 exhibits a weak antiferromagnetic interaction in the 2-300 K range.
  Hai-Jun Pang , Chun-Jing Zhang , Ya-Guang Chen and Dong-Mei Shi
  A new 3-D supramolecular compound based on a Keggin polyoxometalate and lanthanide (Ln) coordination cations [Ce(H2O)3L3]2[HSiMo12O40]2[L] ⋅ 7H2O (1) (L = isonicotinic acid) has been synthesized and characterized by routine methods. Compound 1 has a water chain with trimeric and hexameric water clusters trapped in the network. The isonicotinic acid plays a key role in forming the 1-D water chains. Compound 1 shows intense photoluminescence at room temperature.
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