2D Co-based coordination polymer with a histidine derivative as an efficient heterogeneous catalyst for the oxidation of cyclohexene. Issue 15 (31st March 2017)

• Record Type: Journal Article
• Authors: Yu, Fan; Xiong, Xin; Huang, Kexing; Zhou, Yinliu; Li, Bao
• Is Part Of: CrystEngComm. Volume 19:Issue 15(2017)
• Page Start: 2126
• Page End: 2132
• Publication Date: 2017-03-31
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c7ce00349h
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Utilizing a histidine derivative as an organic linker, a 2D cobalt-based coordination polymer has been constructed that shows high catalytic activity in the allylic oxidation of cyclohexene toward formation of tert -butyl-2-cyclohexenyl-1-peroxide. Abstract : The hydrothermal reaction of CoCl2 and 4-((1-carboxy-2-(1 H -imidazol-4-yl)ethylamino)methyl)benzoic acid (H2 L) generated a {Co2 (H2 O)}-based 2D coordination framework, {(Co(L)(H2 O))2 (H2 O)} n (1 ). Heterogeneous catalytic experiments on the allylic oxidation of cyclohexene show that activated1 exhibits high catalytic activity using tert -butylhydroperoxide ( t -BuOOH) as the oxidant toward the formation of tert -butyl-2-cyclohexenyl-1-peroxide. The activation energy for the oxidation of cyclohexene with catalyst1 was approximately calculated as 91.98 kJ mol −1 . This work demonstrates that a degree of creativity in the coordinatively unsaturated metal sites in CPs could significantly enhance their heterogeneous catalytic activity and selectivity.