Synthesis and properties of the copper(Ⅱ) complexes with stable radical

• 作 者: 孙柏旺 李苏琪 廖代正 姜宗慧 刘爱俭 闫世平 王耕霖
• 机 构: Department of Chemistry,Nankai University, Tianjin 300071 China ,Department of Chemistry,Nankai Univ
• 出 处: Chinese Journal of Chemistry
• 发表日期: 1998年05期
• 关键词: complexes giving susceptibility tetramethyl conductance ferro molar coordinated

Four novel copper(Ⅱ) complexes have been synthesized,namely Cu(hfac)2NITPhNO2 (1),Cu(hfac)2NITPhCH3 (2),Cu(pfpr)2NITPhNO2,(3) and Cu(Pfpr)2NITPhCH3 (4),where hfac= hexafluoro-acetylacetonate,pfpr=pentafluoropropionate,NITR.=2-R-4,4,5,5-tetraniethyl-4,5-dihydro-1H-imidazolyl-1-oxyl-3-oxide.(R=4-nitrophenyl,4-methylphenyl).These complexes were rharicter-ized by elemental analyses,IR,electronic spectra and molar conductance.The temperature-dependent magnetic susceptibility of complexes 1 and 3 have been studied in the 4 300 K range,giving I he exchange integral J=10.56 cm-1 for complex 1 and J =-30.9 cm-1 for complex 3.

Cu (hfac) 2NITPhCH3 (2), Cu (pfpr) 2NITPhNO2, (3) and Cu (Pfpr) 2NITPhCH3 (4), where hfac = hexafluoro-acetylacetonate, pfpr = pentafluoropropionate, NITR = 2-R-4,4,5,5-tetraniethyl-4,5-dihydro- nitrophenyl, 4-methylphenyl) .These complexes were rharicter-ized by elemental analyzes, IR, electronic spectra and molar conductance. The temperature-dependent magnetic susceptibility of complexes 1 and 3 have been studied in the 4 300 K range, giving I he exchange integral J = 10.56 cm-1 for complex 1 and J = -30.9 cm-1 for complex 3.