Syntheses, structures and properties of four inorganic–organic hybrid heteropolymolybdates functionalized by chiral serine ligands

July 28, 2017

Title

Syntheses, structures and properties of four inorganic–organic hybrid heteropolymolybdates functionalized by chiral serine ligands

Author

Jiancai Liu, Jing Yu, Qing Han, Bo Shao, Yue Wen, Lijuan Chen, Junwei Zhao

Year

2016

Journal

Inorganic Chemistry Communications

Abstract

Four new inorganic–organic hybrid polyoxomolybdates K2[SeIVMo6O21(L-O2CCHNH3CH2OH)3]·6H2O (1) and K2[SeIVMo6O21(D-O2CCHNH3CH2OH)3]·6H2O (2), K2[TeIVMo6O21(D-O2 CCHNH3CH2OH)3]·6H2O (3) and K2[TeIVMo6O21(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.

Instrument

J-815

Keywords

Circular dichroism, Ligand binding, Inorganic chemistry, Materials