The two title complexes,[Cd2(phen)2(succ)(H2O)2](NO3-)2 ·3H2O(1)and [Cd2(phen)2(glut)2][Cd2(phen)2(Cl-)2] 2NO3-·14H2O(2)(succ =succinic acid,glut =glutaric acid,phen=1,10-phenanthroline)have been synthesized...The two title complexes,[Cd2(phen)2(succ)(H2O)2](NO3-)2 ·3H2O(1)and [Cd2(phen)2(glut)2][Cd2(phen)2(Cl-)2] 2NO3-·14H2O(2)(succ =succinic acid,glut =glutaric acid,phen=1,10-phenanthroline)have been synthesized at room temperature,and characterized by elemental analysis,IR spectrum and X-ray crystal diffraction.The results show that the complex 1 belongs to monoclinic system with space group P2(1)/c and cell parameter: a=15.373(5),b=13.786(4),c=25.434(7),β=104.582(6)°,V=5217(3)3,Z=4,,Dc=1.624g/cm3,μ(MoKα)=0.895mm-1,F(000)=2576,R1=0.0699,wR2=0.1280.And complex 2 belongs to triclinic system,space group Pī,cell parameter: a=14.131(4),b=14.546(4),c=15.392(5),β=93.731(6),V=2674.93,Z=2,Dc=1.613 g/cm3,μ(MoKα)=0.921 mm-1,F(000)=1316,R1=0.0746,wR2=0.121.Complex 2 has two independent structure and Cd(Ⅱ) is rare seven-coordinated mode.The two complexes formed 2D molecular architectures by hydrogen-bonding and π-π stacking interactions.展开更多
The macrocyclic ligand(L) and its dinuclear copper(Ⅱ) and zinc(Ⅱ) complexes have been synthesized. The crystal structure of [Cu 2L(Him) 2](ClO 4) 4·2H 2O has been determined by single crystal X ray diffraction....The macrocyclic ligand(L) and its dinuclear copper(Ⅱ) and zinc(Ⅱ) complexes have been synthesized. The crystal structure of [Cu 2L(Him) 2](ClO 4) 4·2H 2O has been determined by single crystal X ray diffraction. It crystallizes in a monoclinic system, the space group P2 1/c , a =0.951 2(2) nm, b =2.010 4(4) nm, c =1.202 5(2) nm, β =98.89(3)°, V =2.271 9(8) nm 3, Z=2, D c=1.599 Mg/m 3 , F (000) = 876 , R =0.059 1, wR =0.173 3, GOF(F)=1.009. The copper(Ⅱ) atom is five coordinated with four nitrogen atoms of the macrocyclic ligand and one nitrogen atom of imidazole. The stepwise stability constants of the 1∶1 and 2∶1 molar ratios of Cu to L and Zn to L complexes were determined by potentiometric titration in KCl supporting electrolyte(0.100 mol/L) at 25 ℃. The results indicated that zinc(Ⅱ) ion can form hydroxide bridged dinuclear complex [Zn 2(OH)L] 3+ , while the copper(Ⅱ) ion can only form dinuclear complex 3+ with macrocyclic ligand.展开更多
文摘The two title complexes,[Cd2(phen)2(succ)(H2O)2](NO3-)2 ·3H2O(1)and [Cd2(phen)2(glut)2][Cd2(phen)2(Cl-)2] 2NO3-·14H2O(2)(succ =succinic acid,glut =glutaric acid,phen=1,10-phenanthroline)have been synthesized at room temperature,and characterized by elemental analysis,IR spectrum and X-ray crystal diffraction.The results show that the complex 1 belongs to monoclinic system with space group P2(1)/c and cell parameter: a=15.373(5),b=13.786(4),c=25.434(7),β=104.582(6)°,V=5217(3)3,Z=4,,Dc=1.624g/cm3,μ(MoKα)=0.895mm-1,F(000)=2576,R1=0.0699,wR2=0.1280.And complex 2 belongs to triclinic system,space group Pī,cell parameter: a=14.131(4),b=14.546(4),c=15.392(5),β=93.731(6),V=2674.93,Z=2,Dc=1.613 g/cm3,μ(MoKα)=0.921 mm-1,F(000)=1316,R1=0.0746,wR2=0.121.Complex 2 has two independent structure and Cd(Ⅱ) is rare seven-coordinated mode.The two complexes formed 2D molecular architectures by hydrogen-bonding and π-π stacking interactions.
文摘The macrocyclic ligand(L) and its dinuclear copper(Ⅱ) and zinc(Ⅱ) complexes have been synthesized. The crystal structure of [Cu 2L(Him) 2](ClO 4) 4·2H 2O has been determined by single crystal X ray diffraction. It crystallizes in a monoclinic system, the space group P2 1/c , a =0.951 2(2) nm, b =2.010 4(4) nm, c =1.202 5(2) nm, β =98.89(3)°, V =2.271 9(8) nm 3, Z=2, D c=1.599 Mg/m 3 , F (000) = 876 , R =0.059 1, wR =0.173 3, GOF(F)=1.009. The copper(Ⅱ) atom is five coordinated with four nitrogen atoms of the macrocyclic ligand and one nitrogen atom of imidazole. The stepwise stability constants of the 1∶1 and 2∶1 molar ratios of Cu to L and Zn to L complexes were determined by potentiometric titration in KCl supporting electrolyte(0.100 mol/L) at 25 ℃. The results indicated that zinc(Ⅱ) ion can form hydroxide bridged dinuclear complex [Zn 2(OH)L] 3+ , while the copper(Ⅱ) ion can only form dinuclear complex 3+ with macrocyclic ligand.
