A novel fluorescent mu-O bridged dinuclear Ni(II) coordination polymer with 4,4 '-oxybis(benzoic acid) and its photocatalysis activity

作者：Han, Jing^*; Yu, Zhong; He, Xiang; Li, Peng; Wang, Yun; Quan, Chun-yan

来源：Inorganica Chimica Acta, 2012, 388: 98-101.

DOI：10.1016/j.ica.2012.03.015

• 4,4 '-Oxybis(benzoic acid)
• Complex
• Fluorescent
• Photocatalysis

A novel Ni(II) coordination polymer with flexible 4,4'-oxybis(benzoic acid) (oba) and rigid 4,4'-bipyridine was prepared hydrothermally and crystallographically characterized. It shows an unusual mu-oxo(O-2 ) bridged dinickel(II) polymer. In the dimetal core, each metal center is six-coordinated to three carboxylate oxygen atoms from two different oba ligands, two nitrogen atoms of distinct 4,4'-bipyridine and one bridging oxygen forming a distorted octahedron.
Upon complexation, nickel complex exhibits intense purple fluorescence (413.8 nm) which may originates to the O-2 Ni2+(LMCT) in addition to the peaks of intraligand pi-pi* transition of oba ligand (317.7 and 720.7 nm). Moreover, nickel crystals possess preferable photocatalytic decomposition of RhB solution.

• 出版日期2012-6-15
• 单位西安理工大学; 上海大学