Three new binuclearcopper( ) complexesbridged by dithio- oxamidate(dto) group or biscyclohexanone oxalyldihydrazone (BCO) [Cu2 (en) 2 (dto) ](Cl O4) 2 .3H2 O (1)、[Cu2(dien) 2 (dto) ](Cl O4) 2 .2 H2 O (2 ) and [Cu2 (b...Three new binuclearcopper( ) complexesbridged by dithio- oxamidate(dto) group or biscyclohexanone oxalyldihydrazone (BCO) [Cu2 (en) 2 (dto) ](Cl O4) 2 .3H2 O (1)、[Cu2(dien) 2 (dto) ](Cl O4) 2 .2 H2 O (2 ) and [Cu2 (bipy) 2 (BCO) (Cl O4) 2 ](Cl O4) 2 (3) ,where en , bipy and dien denote ethylenediamine,2 ,2′- bipyridyl and diethylentriamine respectively, were synthesized and characterized by elemental analysis,IR,electronicspectra and variable temperature magnetic susceptibility. Variable temperature (4. 0 - 30 0 K ) magnetic susceptibility data for the complexes show that there exists the antiferromagnetic exchange interaction between the two copper( ) ionswith J(cm-1 ) valuesof- 0 .4 6 2 (1)、- 1.0 3 (2 ) and - 6 .86 (3) . The preliminary study of the electrochemical characteristicsof complex (3) was also carried out.展开更多
A metal-organic Complex [Cu2(ipt)(Medpq)2]n(ipt=isophthalic acid,Medpq=2-methyldipyrido[3,2-f:2′,3′-h]quinoxaline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectr...A metal-organic Complex [Cu2(ipt)(Medpq)2]n(ipt=isophthalic acid,Medpq=2-methyldipyrido[3,2-f:2′,3′-h]quinoxaline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectrum,TG and single-crystal X-ray diffraction.Title compound crystallizes in the monoclinic system,space group C2/c,with a=2.389 2(6) nm,b=0.709 60(18) nm,c=1.922 2(5) nm,β=108.655(3),V=3.087 8(14) nm3,C38H24Cu2 N8O4,Mr=783.73,Dc=1.686 g.cm-3,Z=4,the final R=0.055 4 and wR=0.128 5.In the crystal structure,the copper atom is three-coordinated with one carboxylate oxygen atom from carboxylate groups and two nitrogen atoms from Medpq ligand,showing a slightly distorted triangle geometry.Furthermore,it exhibits a zero-dimensional structure with ipt-Cu-medpq as building units.CCDC: 747544.展开更多
A Cu(Ⅰ) complex [Cu(INHPy)(PPh3)2] ·(ClO4)·0.75(C2H5OH) was obtained through self-assembly between [Cu(PPh3)2(MeCN)2]ClO4 and Schiff base 2-pyridylcarboxaldehyde isonicotinoyl hadrazone(INHPy), the structur...A Cu(Ⅰ) complex [Cu(INHPy)(PPh3)2] ·(ClO4)·0.75(C2H5OH) was obtained through self-assembly between [Cu(PPh3)2(MeCN)2]ClO4 and Schiff base 2-pyridylcarboxaldehyde isonicotinoyl hadrazone(INHPy), the structure of which was characterized by elemental analysis, IR spectrum and X-ray diffraction. Single crystal X-ray analysis indicates that this compound crystallizes in triclinic system, space group P1 with parameters: a=1.180 7(2) nm, b=1.330 0(3) nm, c=1.568 6(2) nm. 1.332 g穋m-3, F(000)=1 032, 腎=0.804+23.770C, r=0.995). CCDC: 231388.展开更多
Thermal decomposition process of four benzimidazolyl-containing dicopper(Ⅰ) complexes: [Cu2(OCTB)](ClO4)2·1.5H2O(1), [Cu2 (NMOCTB)](ClO4)2·H2O(2),[Cu2(NBUOCTB)](ClO4)2(3), [Cu2(NBOCTB)](ClO4)2·H2O(4) a...Thermal decomposition process of four benzimidazolyl-containing dicopper(Ⅰ) complexes: [Cu2(OCTB)](ClO4)2·1.5H2O(1), [Cu2 (NMOCTB)](ClO4)2·H2O(2),[Cu2(NBUOCTB)](ClO4)2(3), [Cu2(NBOCTB)](ClO4)2·H2O(4) and their kinetics were studied under the non-isothermal conditions by TG-DTG techniques. The non-isothermal kinetic data were analyzed by means of Achar and Coats-Redfern method respectively.The kinetic equation for the second step of the decomposition of complex (1) can be expressed as: dα/dt==A.exp(-E/RT).(1-α), the mechanism of this reaction corresponds to "Coring and Growth" with n=1; while for the first step of complex (3) decomposition, dα/dt=A·exp(-E/RT)·.(1-α)2, which corresponds to the mechanism of "the second-order chemical reartion".展开更多
Tetranuclear Cu(I)complex,Cu4(imdt)(NO3)4.6H2O(imdt=1,3-imidazolidine-2-thione),was synthesized by areaction of Cu(NO3)2with imdt in water.It crystallizes in monoclinic crystal system,space group C2/c(No.15),with a =3...Tetranuclear Cu(I)complex,Cu4(imdt)(NO3)4.6H2O(imdt=1,3-imidazolidine-2-thione),was synthesized by areaction of Cu(NO3)2with imdt in water.It crystallizes in monoclinic crystal system,space group C2/c(No.15),with a =3.1418(3)nm,b =0.94332(6) nm,c =2.3027(2) nm,β=119.773(3)°,V =5.9236(9) nm3,Z =4,Mr=1529.68.mol-1,Dc.=1.715g.cm-3,μ=1.815 mm-1,F(000) =3144,R1=0.028,wR2=0.065.The crystal structure consists of tetranuclear[Cu4(imdt)9]4 +cation,in which Cu(I)is coordinated with four S atoms from four imdt ligands to form a distorted tetrahedral geometryand imdt ligands exhibit three coordination modes of terminal monodentate S-donating andμ2—S andμ4—S bridging coordina-tion.展开更多
The title complex Cu(Vpy)NO3 (Vpy=4-vinylpyridine) has been synthesized and structurally characterized by X-ray single crystal diffractometry. The complex crystallizes in triclinic system, P1 space group with the cell...The title complex Cu(Vpy)NO3 (Vpy=4-vinylpyridine) has been synthesized and structurally characterized by X-ray single crystal diffractometry. The complex crystallizes in triclinic system, P1 space group with the cell parameters of a=1.004 2(2) nm, b=1.631 7(3) nm, c=1.887 7(4) nm, α=81.54(2)°, β=77.44(2)°, γ=79.39(2)°, V= 2.948 9(11) nm3, Z=4, and Dc=1.230 g·cm-3, the final R1=0.075 2, wR2=0.139 1. The complex crystallizes with two molecules in the asymmetric unit. Each Cu(Ⅰ) ion is coordinated by four N atom from the Vpy ligands and one O atoms from the nitrate anion, resulted in a square pyramidal geometry. The electrochemical studies reveal that redox of Cu2+/Cu+ in the complex is a quasi-reversible process. CCDC: 736638.展开更多
The crystal and molecular structure of [(PPh3)2Cu(O2CPhOH)]·CH3CH2OH has been determined by X ray crystallography. It crystallizes in the monoclinic system, space group P21/c, with Mr=771.26 (C45H41CuO4P2), a=0.9...The crystal and molecular structure of [(PPh3)2Cu(O2CPhOH)]·CH3CH2OH has been determined by X ray crystallography. It crystallizes in the monoclinic system, space group P21/c, with Mr=771.26 (C45H41CuO4P2), a=0.96413(19)nm, b=1.5780(3)nm, c=2.5426(5)nm, β=100.27(3)°, V=3.8065(13)nm3, The title compound consists of discrete copper? bis(triphenylphosphine) salicylate molecules and ethanol solvate. Each Cu is coordinated to two phosphorus atoms of triphenylphosphine ligands and one of carboxylate oxygens in a trigonal planar geometry. In the solid, the intramolecular hydrogen bond and extensive intermolecular interaction connecting (PPh3)2Cu(O2CPhOH) molecules and ethanol solvate form hydrogen bonds network which stabilize the crystal structure. CCDC: 208730.展开更多
文摘Three new binuclearcopper( ) complexesbridged by dithio- oxamidate(dto) group or biscyclohexanone oxalyldihydrazone (BCO) [Cu2 (en) 2 (dto) ](Cl O4) 2 .3H2 O (1)、[Cu2(dien) 2 (dto) ](Cl O4) 2 .2 H2 O (2 ) and [Cu2 (bipy) 2 (BCO) (Cl O4) 2 ](Cl O4) 2 (3) ,where en , bipy and dien denote ethylenediamine,2 ,2′- bipyridyl and diethylentriamine respectively, were synthesized and characterized by elemental analysis,IR,electronicspectra and variable temperature magnetic susceptibility. Variable temperature (4. 0 - 30 0 K ) magnetic susceptibility data for the complexes show that there exists the antiferromagnetic exchange interaction between the two copper( ) ionswith J(cm-1 ) valuesof- 0 .4 6 2 (1)、- 1.0 3 (2 ) and - 6 .86 (3) . The preliminary study of the electrochemical characteristicsof complex (3) was also carried out.
文摘A metal-organic Complex [Cu2(ipt)(Medpq)2]n(ipt=isophthalic acid,Medpq=2-methyldipyrido[3,2-f:2′,3′-h]quinoxaline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectrum,TG and single-crystal X-ray diffraction.Title compound crystallizes in the monoclinic system,space group C2/c,with a=2.389 2(6) nm,b=0.709 60(18) nm,c=1.922 2(5) nm,β=108.655(3),V=3.087 8(14) nm3,C38H24Cu2 N8O4,Mr=783.73,Dc=1.686 g.cm-3,Z=4,the final R=0.055 4 and wR=0.128 5.In the crystal structure,the copper atom is three-coordinated with one carboxylate oxygen atom from carboxylate groups and two nitrogen atoms from Medpq ligand,showing a slightly distorted triangle geometry.Furthermore,it exhibits a zero-dimensional structure with ipt-Cu-medpq as building units.CCDC: 747544.
文摘A Cu(Ⅰ) complex [Cu(INHPy)(PPh3)2] ·(ClO4)·0.75(C2H5OH) was obtained through self-assembly between [Cu(PPh3)2(MeCN)2]ClO4 and Schiff base 2-pyridylcarboxaldehyde isonicotinoyl hadrazone(INHPy), the structure of which was characterized by elemental analysis, IR spectrum and X-ray diffraction. Single crystal X-ray analysis indicates that this compound crystallizes in triclinic system, space group P1 with parameters: a=1.180 7(2) nm, b=1.330 0(3) nm, c=1.568 6(2) nm. 1.332 g穋m-3, F(000)=1 032, 腎=0.804+23.770C, r=0.995). CCDC: 231388.
文摘Thermal decomposition process of four benzimidazolyl-containing dicopper(Ⅰ) complexes: [Cu2(OCTB)](ClO4)2·1.5H2O(1), [Cu2 (NMOCTB)](ClO4)2·H2O(2),[Cu2(NBUOCTB)](ClO4)2(3), [Cu2(NBOCTB)](ClO4)2·H2O(4) and their kinetics were studied under the non-isothermal conditions by TG-DTG techniques. The non-isothermal kinetic data were analyzed by means of Achar and Coats-Redfern method respectively.The kinetic equation for the second step of the decomposition of complex (1) can be expressed as: dα/dt==A.exp(-E/RT).(1-α), the mechanism of this reaction corresponds to "Coring and Growth" with n=1; while for the first step of complex (3) decomposition, dα/dt=A·exp(-E/RT)·.(1-α)2, which corresponds to the mechanism of "the second-order chemical reartion".
文摘Tetranuclear Cu(I)complex,Cu4(imdt)(NO3)4.6H2O(imdt=1,3-imidazolidine-2-thione),was synthesized by areaction of Cu(NO3)2with imdt in water.It crystallizes in monoclinic crystal system,space group C2/c(No.15),with a =3.1418(3)nm,b =0.94332(6) nm,c =2.3027(2) nm,β=119.773(3)°,V =5.9236(9) nm3,Z =4,Mr=1529.68.mol-1,Dc.=1.715g.cm-3,μ=1.815 mm-1,F(000) =3144,R1=0.028,wR2=0.065.The crystal structure consists of tetranuclear[Cu4(imdt)9]4 +cation,in which Cu(I)is coordinated with four S atoms from four imdt ligands to form a distorted tetrahedral geometryand imdt ligands exhibit three coordination modes of terminal monodentate S-donating andμ2—S andμ4—S bridging coordina-tion.
文摘The title complex Cu(Vpy)NO3 (Vpy=4-vinylpyridine) has been synthesized and structurally characterized by X-ray single crystal diffractometry. The complex crystallizes in triclinic system, P1 space group with the cell parameters of a=1.004 2(2) nm, b=1.631 7(3) nm, c=1.887 7(4) nm, α=81.54(2)°, β=77.44(2)°, γ=79.39(2)°, V= 2.948 9(11) nm3, Z=4, and Dc=1.230 g·cm-3, the final R1=0.075 2, wR2=0.139 1. The complex crystallizes with two molecules in the asymmetric unit. Each Cu(Ⅰ) ion is coordinated by four N atom from the Vpy ligands and one O atoms from the nitrate anion, resulted in a square pyramidal geometry. The electrochemical studies reveal that redox of Cu2+/Cu+ in the complex is a quasi-reversible process. CCDC: 736638.
文摘The crystal and molecular structure of [(PPh3)2Cu(O2CPhOH)]·CH3CH2OH has been determined by X ray crystallography. It crystallizes in the monoclinic system, space group P21/c, with Mr=771.26 (C45H41CuO4P2), a=0.96413(19)nm, b=1.5780(3)nm, c=2.5426(5)nm, β=100.27(3)°, V=3.8065(13)nm3, The title compound consists of discrete copper? bis(triphenylphosphine) salicylate molecules and ethanol solvate. Each Cu is coordinated to two phosphorus atoms of triphenylphosphine ligands and one of carboxylate oxygens in a trigonal planar geometry. In the solid, the intramolecular hydrogen bond and extensive intermolecular interaction connecting (PPh3)2Cu(O2CPhOH) molecules and ethanol solvate form hydrogen bonds network which stabilize the crystal structure. CCDC: 208730.
