A new sandwich type transition metal complex based on tungstobismuthates and 1-methylimidazole ligands exhibiting photocatalytic properties

• Published in: IOP conference series. Materials Science and Engineering Vol. 292; no. 1; pp. 12122 - 12128
• Main Authors: Wu, Q, Liang, D Q, Ju, H D, Liu, K, Cui, Y, Li, W L, Wang, B L, Ye, F P, Zheng, Y, Wu, Y M, Li, J Y, Lei, Y, Xu, Y, Liu, T, Wang, Y
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2018
• Subjects: Aqueous solutions; Coordination compounds; Crystal structure; Crystals; Infrared analysis; Infrared spectroscopy; Ligands; Photocatalysis; Photodegradation; Single crystals; Transition metal compounds; Ultraviolet radiation; X-ray diffraction
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/292/1/012122

A new sandwich-type transition metal complex based on tungstobismuthates and 1-methylimidazole ligands Na7(mim)2[{Na(H2O)2}3{CoII(mim)}3(BiIIIWVI9O33)2]·9H2O (1) (mim = 1-methylimidazole) has been successfully isolated in aqueous solution. The composition and structure were established by the single crystal X-ray diffraction analysis, elemental analysis, IR spectroscopy. Single-crystal X-ray diffraction and TG analyses indicate that compound 1 consists of two tri-vacant [α-B-BiIIIWVI9O33]9- units linked through three cobalt ions. All the CoII ions were sandwiched in the middle and bonded with terminal oxo atoms from [α-B-BiIIIWVI9O33]9- units as well as 1-methylimidazoles. Photocatalytic experiment indicates that compound 1 exhibit good catalytic activities for photodegradation of RhB under UV irradiation.