A new photosensitive charge transfer complex has been synthesized based on phosphomolybdic acid and α-phridylazo-β-naphthol and characterized by elemental analysis, IR spectrum, UV spectrum, The resalts of IR spectr...A new photosensitive charge transfer complex has been synthesized based on phosphomolybdic acid and α-phridylazo-β-naphthol and characterized by elemental analysis, IR spectrum, UV spectrum, The resalts of IR spectra showed that the coordinating atom of α-phridylazo- β-naphthol was oxygen of C-O bond. The organic ligands do not coordinat5e with heteropolyanions, but with Protons in heteropoly acid by coordination bond. Photochromism studies show that the electron transfer takes place from the organic molecules to the heteropolyanions.展开更多
A charge-transfer complex, [(C2H4OH)3NH]2·[HPMo12O40]·3H2O, has been synthesized and characterized.The crystal structure of the complex was determined by X-ray diffraction. It belongs to orthorhombic, space ...A charge-transfer complex, [(C2H4OH)3NH]2·[HPMo12O40]·3H2O, has been synthesized and characterized.The crystal structure of the complex was determined by X-ray diffraction. It belongs to orthorhombic, space grounp Pnna, with a=1.541 30(5) nm, b=1.884 23 (7) nm, c=2.049 06(7) nm, α=β=γ=90.00°, V=5.950 8(4) nm3, Z=4, Dc=2.427 Mg·m-3 , F (000)=4 132, μ(Mo Kα)=2.568 mm-1. The structure was refined to R1=0.043 5 and wR2=0.122 4 by full-matrix least-squares method. The O atoms of the polyoxometalate, the C atoms of the organic substrates and the O atoms of water molecules are involved in hydrogen bonding. Spectral data support the presence of an electronic interaction between the organic substrate and the inorganic anion in the solid state. It is strongly photochromic under ultraviolet light resulting from charge-transfer. The electrochemical behavior of the compound shows that the redox peak currents are proportional to the scan rate in pH=4.0 NaAc-HAc buffer solution, which indicates that the electrode reaction are surface controlled processes.展开更多
The complex[Cu(L-met)(phen)(H 2 O)]NO 3 ·H 2 O has been synthesized and investigated by elemental analysis,molar conductivity,spec troscopic and X-ray diffraction methods,where phen =1,10-phenanthroline and L-met...The complex[Cu(L-met)(phen)(H 2 O)]NO 3 ·H 2 O has been synthesized and investigated by elemental analysis,molar conductivity,spec troscopic and X-ray diffraction methods,where phen =1,10-phenanthroline and L-met =L-methioninate group.The complex crystallized in the monoclinic space g roup P2 1 with a=12.053(2)*!,b=6.886(1)*!,c=13.385(3)*!,β=113.59(3)°,V=1018.1(3)*! 3 ,Z =2,D c =1.598g·cm -3 ,μ=1.223mm -1 ,F(000)=506,R 1 =0.0306,and w R 2 =0.0742.The copper*"atom is ligated in a distorted square-pyramidal geometry by two ni trogen atoms of one phen and the amino nitrogen atom ,one carboxylate oxygen atom of L-met in the base plane,and an aqua at t he apical position.A one-dimension al chain configuration formed by the hydrogen-bonding and weak Cu-O(the uncoordinated carboxyl oxygen a tom)coordination interactions be-tween neighboring[Cu(L-met)(phen)(H 2 O)] + cations.CCDC:183368.展开更多
文摘A new photosensitive charge transfer complex has been synthesized based on phosphomolybdic acid and α-phridylazo-β-naphthol and characterized by elemental analysis, IR spectrum, UV spectrum, The resalts of IR spectra showed that the coordinating atom of α-phridylazo- β-naphthol was oxygen of C-O bond. The organic ligands do not coordinat5e with heteropolyanions, but with Protons in heteropoly acid by coordination bond. Photochromism studies show that the electron transfer takes place from the organic molecules to the heteropolyanions.
文摘A charge-transfer complex, [(C2H4OH)3NH]2·[HPMo12O40]·3H2O, has been synthesized and characterized.The crystal structure of the complex was determined by X-ray diffraction. It belongs to orthorhombic, space grounp Pnna, with a=1.541 30(5) nm, b=1.884 23 (7) nm, c=2.049 06(7) nm, α=β=γ=90.00°, V=5.950 8(4) nm3, Z=4, Dc=2.427 Mg·m-3 , F (000)=4 132, μ(Mo Kα)=2.568 mm-1. The structure was refined to R1=0.043 5 and wR2=0.122 4 by full-matrix least-squares method. The O atoms of the polyoxometalate, the C atoms of the organic substrates and the O atoms of water molecules are involved in hydrogen bonding. Spectral data support the presence of an electronic interaction between the organic substrate and the inorganic anion in the solid state. It is strongly photochromic under ultraviolet light resulting from charge-transfer. The electrochemical behavior of the compound shows that the redox peak currents are proportional to the scan rate in pH=4.0 NaAc-HAc buffer solution, which indicates that the electrode reaction are surface controlled processes.
文摘The complex[Cu(L-met)(phen)(H 2 O)]NO 3 ·H 2 O has been synthesized and investigated by elemental analysis,molar conductivity,spec troscopic and X-ray diffraction methods,where phen =1,10-phenanthroline and L-met =L-methioninate group.The complex crystallized in the monoclinic space g roup P2 1 with a=12.053(2)*!,b=6.886(1)*!,c=13.385(3)*!,β=113.59(3)°,V=1018.1(3)*! 3 ,Z =2,D c =1.598g·cm -3 ,μ=1.223mm -1 ,F(000)=506,R 1 =0.0306,and w R 2 =0.0742.The copper*"atom is ligated in a distorted square-pyramidal geometry by two ni trogen atoms of one phen and the amino nitrogen atom ,one carboxylate oxygen atom of L-met in the base plane,and an aqua at t he apical position.A one-dimension al chain configuration formed by the hydrogen-bonding and weak Cu-O(the uncoordinated carboxyl oxygen a tom)coordination interactions be-tween neighboring[Cu(L-met)(phen)(H 2 O)] + cations.CCDC:183368.
