Syntheses,structures and properties of four inorganic–organic hybrid heteropolymolybdates functionalized by chiral serine ligands |
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| Affiliation: | 1. Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, PR China;2. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China;1. College of Chemical Engineering and Environment, North University of China, Taiyuan 030051, PR China;2. College of Environment and Resource, Shanxi University, Taiyuan 030006, PR China |
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| Abstract: | Four new inorganic–organic hybrid polyoxomolybdates K2SeIVMo6O21(L-O2CCHNH3 CH2OH)3]·6H2O (1) and K2SeIVMo6O21(D-O2CCHNH3CH2OH)3]·6H2O (2), K2TeIVMo6O21(D-O2 CCHNH3CH2OH)3]·6H2O (3) and K2TeIVMo6O21(L-O2CCHNH3CH2OH)3]·6H2O (4) have been synthesized by a simple one-pot reaction of NaMoO4·2H2O, Na2SeO3/K2TeO3, KCl and corresponding chiral serine ligands in the aqueous medium and further characterized by single-crystal X-ray diffraction, elemental analyses, IR spectra, thermogravimetric (TG) analyses, electrospray ionization mass spectrometry (ESI-MS) and circular dichroism (CD) spectra. 1–4 are the representative chiral heteropolymolybdates featuring that a common {Se/TeMo6} fragment is made up of a six-membered MoO6 octahedral ring functionalized by three serine ligands. TG analyses reveal that 1–4 undergo a two-step weight loss in the temperature range of 25–850 °C. |
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