A novel binuclear copper (Ⅱ) complex,namely [Cu 2｛Ph 3P(CH 2) 2CO 2｝ 4(NO 3) 2]·(NO 3) 2 1,has been synthesized from the reaction of Cu(NO 3) 2·4H 2O with Ph 3P +(CH 2) 2CO - 2 L.The si...A novel binuclear copper (Ⅱ) complex,namely [Cu 2｛Ph 3P(CH 2) 2CO 2｝ 4(NO 3) 2]·(NO 3) 2 1,has been synthesized from the reaction of Cu(NO 3) 2·4H 2O with Ph 3P +(CH 2) 2CO - 2 L.The single crystal X ray structural analysis of 1 indicates that the compound crystallizes in space group P1(No.2) with a=12.652(3),b=18.983(4),c=9.102(3),α=97.26(2)°,β=107.38(2)°,γ=102.22(2)° and Z=1.In complex 1,a pair of Cu(Ⅱ) atoms are bridged by carboxylate groups of four ligand molecules with a Cu…Cu distance of 2.738 to form a tetrakis (carboxylato O,O) bridge dimetal core,and the apical coordination positions are occupied by monodentate nitrato anions,which is rare in the structures of similar Cu(Ⅱ) complexes in which the apical ligands are usually neutral molecules.The result shows that introducing the anionic ligands into the coordination sphere of the Cu(Ⅱ) atom significantly increases the Cu…Cu distance.展开更多
文摘A novel binuclear copper (Ⅱ) complex,namely [Cu 2｛Ph 3P(CH 2) 2CO 2｝ 4(NO 3) 2]·(NO 3) 2 1,has been synthesized from the reaction of Cu(NO 3) 2·4H 2O with Ph 3P +(CH 2) 2CO - 2 L.The single crystal X ray structural analysis of 1 indicates that the compound crystallizes in space group P1(No.2) with a=12.652(3),b=18.983(4),c=9.102(3),α=97.26(2)°,β=107.38(2)°,γ=102.22(2)° and Z=1.In complex 1,a pair of Cu(Ⅱ) atoms are bridged by carboxylate groups of four ligand molecules with a Cu…Cu distance of 2.738 to form a tetrakis (carboxylato O,O) bridge dimetal core,and the apical coordination positions are occupied by monodentate nitrato anions,which is rare in the structures of similar Cu(Ⅱ) complexes in which the apical ligands are usually neutral molecules.The result shows that introducing the anionic ligands into the coordination sphere of the Cu(Ⅱ) atom significantly increases the Cu…Cu distance.
