Title
A pair of stable Zn(II) enantiomeric coordination compounds: synthesis, crystal structures and luminescent recognition properties
Author
Qian-ying Deng, Man-yu Liu, Ya-Jing Shi, Lan-zhi Wang, Qi Feng, Hui-Hua Song
Year
2020
Journal
Journal of Molecular Structure
Abstract
A pair of stable chiral coordination compounds {[Zn (D-hpg) (bpe)]⋅(NO3)⋅(C2H6O)}n 1-D, {[Zn (L-hpg) (bpe)]⋅(NO3)⋅(C2H6O)}n 1-L (D-Hhpg = D-(−)-4-Hydroxyphenylglycine, L-Hhpg = L-(+)-4-Hydroxyphenylglycine, bpe = 1,2-bis(4-pyridyl)ethane) have been successfully synthesized. Their structures were determined by single-crystal X-ray diffraction analysis and characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis and powder X-ray diffraction. Interestingly, they are 2D layer structures that consist of left- or right-handed helical chains, respectively. Circular dichroism and luminescent properties of compounds 1-D and 1-L were investigated at room temperature. Moreover, 1-D and 1-L show similar selectivity toward Cu2+ ions through luminescent quenching in aqueous solution. In addition, 1-D also displays an excellent recognition ability on detecting CH3OH.
Instrument
J-810
Keywords
Circular dichroism, Solid state, Stereochemistry, Coordination chemistry, Organic chemistry