PhCH2)3Sn·(O2CC5H4N)·(H2O)]n was synthesized by the reaction of 4-pyridine car-boxylic acid with the tribenzyltin o xide and was characterized by IR,1 H NMR and MS.Its crystal structure was determined by X-r...PhCH2)3Sn·(O2CC5H4N)·(H2O)]n was synthesized by the reaction of 4-pyridine car-boxylic acid with the tribenzyltin o xide and was characterized by IR,1 H NMR and MS.Its crystal structure was determined by X-ray single crystal diffraction.The crystal belongs to monoclinic.The space group P21 /c with unit cell parameters a=1.2241(8)nm,b=0.9660(6)nm,c=2.3708(15)nm,β=102.722(12)°,V=2.734(3)nm3,Z =4,Dc=1.298g·cm-3 .In crystal,the tin atom rendered five-coordinate in a trigo nal bipyramidal structure which is b ridged by 4-pyridine carboxy-late into one-dimensional chain polymers.展开更多
Et4N)2pd(i-mnt)2.fw = 647. 04, monoclinic,space group P21/c;a =9.511(1), b = 11.612(2), c=14.820(3)A,g= 94.38(1)',I'= 1631.9(5)A;7=2' D.=1.32g.cnl-;F (000)=672, R=0 0324, R. = 0'0298.Tills is a new e,\...Et4N)2pd(i-mnt)2.fw = 647. 04, monoclinic,space group P21/c;a =9.511(1), b = 11.612(2), c=14.820(3)A,g= 94.38(1)',I'= 1631.9(5)A;7=2' D.=1.32g.cnl-;F (000)=672, R=0 0324, R. = 0'0298.Tills is a new e,\alil[)le ot' X-raycharacterized Pd colllplexes with bivalent anion l,1 -dithiolato ligands an(i IIis reactioll witll(Et'N)zWS# gives (Et4N)ZWS4Pd(i-1lint).展开更多
Nine complexes(RC_5H_4)_2Ti(O_2CC_6H_4X)_2(R=H,CH_3;X=H,o-Cl,o-OH, o-NH_2,o-NHPh)have been conveniently prepared by the reaction of (RC_5H_4)_2TiCl_2 with 2 equiv.sodium salts of corresponding carboxylic acid in aqueo...Nine complexes(RC_5H_4)_2Ti(O_2CC_6H_4X)_2(R=H,CH_3;X=H,o-Cl,o-OH, o-NH_2,o-NHPh)have been conveniently prepared by the reaction of (RC_5H_4)_2TiCl_2 with 2 equiv.sodium salts of corresponding carboxylic acid in aqueous solution containing acetylacetone.The carboxylate ligands in the complexes coordinate to titanium atom in monodentate mode.展开更多
The cluster compound[Mo_4S_4(μ-O_2CC_5H_5)_2(dtp)_4](dtp=S_2P(OEt)_2)was obtained by the ligand substitution reaction of tetranuclear molybdenum cluster [Mo_4S_4(μ-dtp)_2(dtp)_4]in the mixed solvent of acetone,ethan...The cluster compound[Mo_4S_4(μ-O_2CC_5H_5)_2(dtp)_4](dtp=S_2P(OEt)_2)was obtained by the ligand substitution reaction of tetranuclear molybdenum cluster [Mo_4S_4(μ-dtp)_2(dtp)_4]in the mixed solvent of acetone,ethanol and water in the presence of C_6H_5CO_2Na.It is monoclinic and crystallizes in space group C2/c, Mr=1495.09,a=12.175(5),b=22.01(1),c=20.875(9),β=99.04(4)°;V=5575(5);Z=4; Dc=1.78g/cm^3.Final R factor is 0.066.The result reveals that the[Mo_4S_4]cluster core and t-(dtp)^(-1)ligands are retained and only μ-bridged(dtp)^(-1)ligands are substituted by(C_6H_5CO_2)^(-1)in the substitution reaction,thus producing the new title cluster compound,the structure of which contains two species of bidentate ligand.展开更多
The chlor-alkali industry faces high energy consumption,competition between the chlorine evolution reaction(CER)and oxygen evolution reaction(OER),and challenges,such as high costs and poor stability of precious metal...The chlor-alkali industry faces high energy consumption,competition between the chlorine evolution reaction(CER)and oxygen evolution reaction(OER),and challenges,such as high costs and poor stability of precious metal catalysts in chlorine production.At the same time,the treatment of antibiotic pollution urgently requires efficient degradation technologies.In this study,a non-precious metal anode of CuCo_(2)S_(4)/Ti(CCS/Ti)with a nanosheet structure was constructed on a foam titanium substrate using a hydrothermal method,achieving dual-functional applications for efficient chlorine evolution and the degradation of ofloxacin(OFX).The electrode exhibits an overpotential of 1.23 V(vs.Ag/AgCl)at a current density of 100 mA·cm^(−2),with a Faradaic efficiency of 95.66%,and remains stable for 180 h.Density functional theory(DFT)calculations indicate that the chlorine evolution mechanism on the CCS/Ti electrode primarily follows the Volmer-Heyrovsky pathway.Furthermore,the CCS/Ti electrode achieves a degradation efficiency of 91.34%for OFX within 5 min and demonstrates broad-spectrum degradation capabilities for various fluoroquinolone antibiotics(>83.05%).This study provides an efficient and cost-effective new approach for catalyst material design,contributing to the greening of the chlor-alkali industry and the treatment of refractory pollutants.展开更多
文摘PhCH2)3Sn·(O2CC5H4N)·(H2O)]n was synthesized by the reaction of 4-pyridine car-boxylic acid with the tribenzyltin o xide and was characterized by IR,1 H NMR and MS.Its crystal structure was determined by X-ray single crystal diffraction.The crystal belongs to monoclinic.The space group P21 /c with unit cell parameters a=1.2241(8)nm,b=0.9660(6)nm,c=2.3708(15)nm,β=102.722(12)°,V=2.734(3)nm3,Z =4,Dc=1.298g·cm-3 .In crystal,the tin atom rendered five-coordinate in a trigo nal bipyramidal structure which is b ridged by 4-pyridine carboxy-late into one-dimensional chain polymers.
文摘Nine complexes(RC_5H_4)_2Ti(O_2CC_6H_4X)_2(R=H,CH_3;X=H,o-Cl,o-OH, o-NH_2,o-NHPh)have been conveniently prepared by the reaction of (RC_5H_4)_2TiCl_2 with 2 equiv.sodium salts of corresponding carboxylic acid in aqueous solution containing acetylacetone.The carboxylate ligands in the complexes coordinate to titanium atom in monodentate mode.
文摘The cluster compound[Mo_4S_4(μ-O_2CC_5H_5)_2(dtp)_4](dtp=S_2P(OEt)_2)was obtained by the ligand substitution reaction of tetranuclear molybdenum cluster [Mo_4S_4(μ-dtp)_2(dtp)_4]in the mixed solvent of acetone,ethanol and water in the presence of C_6H_5CO_2Na.It is monoclinic and crystallizes in space group C2/c, Mr=1495.09,a=12.175(5),b=22.01(1),c=20.875(9),β=99.04(4)°;V=5575(5);Z=4; Dc=1.78g/cm^3.Final R factor is 0.066.The result reveals that the[Mo_4S_4]cluster core and t-(dtp)^(-1)ligands are retained and only μ-bridged(dtp)^(-1)ligands are substituted by(C_6H_5CO_2)^(-1)in the substitution reaction,thus producing the new title cluster compound,the structure of which contains two species of bidentate ligand.
基金supported by the Major Science and Technology Projects in Yunnan Province(China)(No.202302AE090014)the National Natural Science Foundation of China(No.5196080497).
文摘The chlor-alkali industry faces high energy consumption,competition between the chlorine evolution reaction(CER)and oxygen evolution reaction(OER),and challenges,such as high costs and poor stability of precious metal catalysts in chlorine production.At the same time,the treatment of antibiotic pollution urgently requires efficient degradation technologies.In this study,a non-precious metal anode of CuCo_(2)S_(4)/Ti(CCS/Ti)with a nanosheet structure was constructed on a foam titanium substrate using a hydrothermal method,achieving dual-functional applications for efficient chlorine evolution and the degradation of ofloxacin(OFX).The electrode exhibits an overpotential of 1.23 V(vs.Ag/AgCl)at a current density of 100 mA·cm^(−2),with a Faradaic efficiency of 95.66%,and remains stable for 180 h.Density functional theory(DFT)calculations indicate that the chlorine evolution mechanism on the CCS/Ti electrode primarily follows the Volmer-Heyrovsky pathway.Furthermore,the CCS/Ti electrode achieves a degradation efficiency of 91.34%for OFX within 5 min and demonstrates broad-spectrum degradation capabilities for various fluoroquinolone antibiotics(>83.05%).This study provides an efficient and cost-effective new approach for catalyst material design,contributing to the greening of the chlor-alkali industry and the treatment of refractory pollutants.
