安海艳
Associate Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Female
Alma Mater:Northeast Normal University
Degree:Doctoral Degree
School/Department:College of Chemistry
Discipline:Inorganic Chemistry
Business Address:Chemical Complex Building C406
Contact Information:13664256422
E-Mail:anhy@dlut.edu.cn
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Indexed by:期刊论文
Date of Publication:2016-12-01
Journal:NEW JOURNAL OF CHEMISTRY
Included Journals:SCIE
Volume:40
Issue:12
Page Number:10316-10324
ISSN No.:1144-0546
Abstract:In this study, we report two chiral sheet-like structures based on amino acid functionalized polyoxomolybdates, [Na(H2O)(2)]Na(H2O)(3)][MMO6O21(O2CCH2NH3)(3)]center dot 2.5H(2)O (M = Te 1 and Se 2; O2CCH2NH3 = glycine), whic were synthesized by spontaneous resolution without a chiral auxiliary. They were characterized using single crystal X-ray crystallography, elemental analysis, powder X-ray diffraction, IR spectroscopy, solid diffuse reflective spectrum, circular dichroism spectrum and TG analysis. The isostructural compounds 1 and 2 crystallize in the chiral space group P2(1) and exhibit a 2D chiral framework in which glycine functionalized polyoxoanions [MMo6O21(O2CCH2NH3)(3)](2-) as structural units are linked together by the alkali metal Na+ cations. According to the chiral structure of both compounds, we speculate that the symmetry breaking of the polyoxoanions mainly depends on attaching glycine and Na+ cation to the polyoxometalates by covalent bonds. The absolute configuration of 1 and 2 was determined from the Flack parameter using X-ray crystallography and solid state circular dichroism spectroscopy. Remarkably, the bulk sample has an enantiomeric excess, confirmed by the random measurement of 8 single crystal data of compound 1 and the solid state circular dichroism spectra of bulk sample 1. Furthermore, in consideration of the asymmetric structure, we detected the second harmonic generation (SHG) efficiency of both compounds, which respectively show an SHG response of approximately 3.5 and 3.7 x KH2PO4. To the best of our knowledge, compounds 1 and 2 represent the chiral heteropolymolybdates holding the strongest SHG efficiency.
In 2002, Prof. Haiyan An received the B.S. degree in chemistry Northeast Normal University, Changchun, China; the M.S. in 2004 and the Ph.D. degree in 2007 in Key Laboratory of Polyoxometalates (POMs) Science of Ministry of Education. There were 30 papers published in Angew. Chem. Int. Ed., Inorg. Chem., Cryst. Growth Des., etc. during the degree. In 2006, she was awarded the Excellent Doctoral Dissertations Fund of Northeast Normal University. In July 2007, Prof. An joined College of Chemistry, Dalian University of Technology in the field of POMs. Her research interests are mainly focuse on the design, synthesis and properties’research of POM-based functional complexes with catalytic and drug activity. She has Undertaked two National Natural Science Foundation of China, one Specialized Research Fund for the Doctoral Program of Higher Education, one Natural Science foundation of Liaoning Province and one Scientific Research Foundation for Doctor of Liaoning Province. There are more than 30 SCI papers have been officially published in foreign periodicals during the work period, more than 20 of which list her as the first author and corresponding author.
