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
A hexanuclear copper（Ⅰ） cluster [Cu6(C5H4NS)6] was synthesized by means of the hydrothermal reaction of [Cu(PPh3)2（MeCN）2]ClO4 with（2-mercaptopyridine-1-oxide） in the presence of 2-butanol,Et3N and water and ch...A hexanuclear copper（Ⅰ） cluster [Cu6(C5H4NS)6] was synthesized by means of the hydrothermal reaction of [Cu(PPh3)2（MeCN）2]ClO4 with（2-mercaptopyridine-1-oxide） in the presence of 2-butanol,Et3N and water and characterized by elemental analysis,IR,TGA and solid state fluorescence spectroscopy as well as X-ray diffractometry.The crystallographic data for the title complex,C15H12Cu3N3S3,are Mr=521.08,monoclinic space group P2（1）/n and the cell parameters are: a=0.958 59（6） nm,b=（1.604 85（12） nm）,（c=）0.122 712（10） nm,β=108.863（2）°,V=1.786 4（2） nm3,Z=4,Dc=（1.937 Mg/m3）,R1=0.030 1,ωR2=0.031 5（I>2σ（I））,F（000）=1 032,μ=3.890 mm-1,R（int）=0.050 1,S=0.598.The title complex exhibits highly thermal stability and strong low energy fluorescence（（λ=）744 nm） when it is irradiated by the light（λ=468 nm） in solid state at room temperature.展开更多
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A hexanuclear copper（Ⅰ） cluster [Cu6(C5H4NS)6] was synthesized by means of the hydrothermal reaction of [Cu(PPh3)2（MeCN）2]ClO4 with（2-mercaptopyridine-1-oxide） in the presence of 2-butanol,Et3N and water and characterized by elemental analysis,IR,TGA and solid state fluorescence spectroscopy as well as X-ray diffractometry.The crystallographic data for the title complex,C15H12Cu3N3S3,are Mr=521.08,monoclinic space group P2（1）/n and the cell parameters are: a=0.958 59（6） nm,b=（1.604 85（12） nm）,（c=）0.122 712（10） nm,β=108.863（2）°,V=1.786 4（2） nm3,Z=4,Dc=（1.937 Mg/m3）,R1=0.030 1,ωR2=0.031 5（I>2σ（I））,F（000）=1 032,μ=3.890 mm-1,R（int）=0.050 1,S=0.598.The title complex exhibits highly thermal stability and strong low energy fluorescence（（λ=）744 nm） when it is irradiated by the light（λ=468 nm） in solid state at room temperature.
