SYNTHESIS, CRYSTAL STRUCTURE, MAGNETIC PROPERTY, AND N2-GAS-ADSORPTION PROPERTY OF DINUCLEAR COPPER(II) 3,4,5-TRIMETHOXYBENZOATE

Authors : Masahiro Mikuriya, Chihiro Yamakawa, Kensuke TANABE, Daisuke YOSHİOKA, Ryoji MİTSUHASHİ, Hidekazu TANAKA, Makoto HANDA

Pages : 103-110

Doi:10.18596/jotcsa.370793

View : 8 | Download : 9

Publication Date : 2017-12-15

Article Type : Research Paper

Abstract :Copperinsert ignore into journalissuearticles values(II); 3,4,5-trimethoxybenzoate, [Cu 2 insert ignore into journalissuearticles values(3,4,5-insert ignore into journalissuearticles values(CH 3 O); 3 C 6 H 2 CO 2 ); 4 insert ignore into journalissuearticles values(CH 3 OH); 2 ]·2DMF, was prepared and characterized by elemental analysis, infrared and UV-vis spectra and temperature dependence of magnetic susceptibilities insert ignore into journalissuearticles values(4.5—300 K);. The crystal structure was determined by the single-crystal X-ray diffraction method. It crystallizes in the triclinic space group P 1 insert ignore into journalissuearticles values( _ ); with a = 8.2110insert ignore into journalissuearticles values(13); Å, b = 13.181insert ignore into journalissuearticles values(2); Å, c = 13.409insert ignore into journalissuearticles values(2); Å, α = 97.967insert ignore into journalissuearticles values(3);°, β = 102.378insert ignore into journalissuearticles values(3);°, γ = 105.009insert ignore into journalissuearticles values(3);°, V = 1339.8insert ignore into journalissuearticles values(4); Å 3 , D x = 1.465 g/cm 3 , and Z = 1. The R 1 [ I > 2σinsert ignore into journalissuearticles values( I );] and wR 2 insert ignore into journalissuearticles values(all data); values are 0.0363 and 0.0816, respectively, for all 5991 independent reflections. The crystal contains crystallographically centrosymmetric dinuclear molecule with axial methanol molecules and crystal DMF molecules [Cu···Cu 2.6190insert ignore into journalissuearticles values(6); Å]. Magnetic susceptibility data show a considerable antiferromagnetic interaction between the two copperinsert ignore into journalissuearticles values(II); ions insert ignore into journalissuearticles values(2 J = –292 cm –1 );. Gas-adsorption behavior was investigated for N 2 .
Keywords : Dinuclear copper complex, crystal structure determinations, nitrogen gas absorption property