Chengdu Branch,Chinese Science Academy,Chengdu610041)abstract:[Mn(ECZ)abstract: 3 ](NO 3 )abstract: 2 is newly prepared by the aqueous solutions of Mn(NO 3 )abstract: 2 and ethyl carbazate(ECZ)abstract:.The crystal st...Chengdu Branch,Chinese Science Academy,Chengdu610041)abstract:[Mn(ECZ)abstract: 3 ](NO 3 )abstract: 2 is newly prepared by the aqueous solutions of Mn(NO 3 )abstract: 2 and ethyl carbazate(ECZ)abstract:.The crystal structure has been determined by X-ray crystal diffraction analysis.It belongs to monoclinic with space group of P2 1 /n.The crystal parameters are:a=1.3974(2)abstract:nm,b=0.8796(2)abstract:nm,c=3.4322(7)abstract:nm,β=9 1.25(1)abstract:°,V=4.2175(1)abstract:nm 3 ,Z=8.Its molecular weight is491.30.Mn 2+ is located on the center of the molecular structure.Ethyl carbazate serves a s a bidentate ligand which coordinates to the metal cations with its carbonyl ox ygen atom and the terminal hydrazine nitrogen atom,forming five-member chelatin g rings,and three such rings are formed in each molecule.The coordination number of the metal ion is six and the coordination configuration of the cen-tral ion is octahedral.Specially,antimer configuration phenomenon is found in the molecu le.The complex is fur-ther characterized by element analysis and IR measurement s.The thermal decomposition mechanism is studied by using TG-DTG and DSC techni ques.CCDC:215675.展开更多
New quatemary rare earth complexes [Ln(C 6H 5COO) 2(NO 3)(Bipy)] 2(Ln=La,Ce,Pr,Nd,Eu,Gd,Tb,Er) have been synthesized in mixed solution system with 8 hydroxyquinoline as the acidity accommodator and characterized by el...New quatemary rare earth complexes [Ln(C 6H 5COO) 2(NO 3)(Bipy)] 2(Ln=La,Ce,Pr,Nd,Eu,Gd,Tb,Er) have been synthesized in mixed solution system with 8 hydroxyquinoline as the acidity accommodator and characterized by elemental analysis,IR,UV, 1H NMR,ESR and fluorescence spectra.The crystal structure of complex [Ln(C 6H 5COO) 2(NO 3)(Bipy)] 2 was given,the competition of thermodynamics and kinetics has been observed for the first time.展开更多
The two diarylheptanoids (E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl) hept-4-en-3-one 1 (Gingerenone C) and (±)-5-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-7-(4- hydroxyphenyl)-3-heptanone 2 were synthesized...The two diarylheptanoids (E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl) hept-4-en-3-one 1 (Gingerenone C) and (±)-5-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-7-(4- hydroxyphenyl)-3-heptanone 2 were synthesized from vanillin 3 and 4-hydroxybenzaldehyde 9.展开更多
The important synthetic precursor（Ⅲ）, 1-（prop-2-yn-1-yl）-7,8-dihydro-1Hbenzo[d][1,3]thiazine-2,5（4H,6H）-dione（C（11）H（11）NO2S）, was prepared through a three-component reaction, which was further transferre...The important synthetic precursor（Ⅲ）, 1-（prop-2-yn-1-yl）-7,8-dihydro-1Hbenzo[d][1,3]thiazine-2,5（4H,6H）-dione（C（11）H（11）NO2S）, was prepared through a three-component reaction, which was further transferred into cytotoxic triazoles by alkylation and ＂click＂ synthesis in satisfactory yields of 87%^95%. Their structures were characterized by IR, H-RESI-MS and NMR analysis. Meanwhile, the crystal of Ⅲ was obtained and determined by X-ray single-crystal diffraction. Crystal data： orthorhombic system, space group P212121, a = 5.189（4）, b = 8.661（6）, c = 23.498（17） A, V = 1056.2（13） A^3, Z = 4, F（000） = 464, Dc = 1.392 g/cm^3, μ =0.284 mm^-1, R = 0.0637 and wR = 0.1668 for 8182 independent reflections（R（int） = 0.1580） and 2166 observed ones（I 〉 2σ（I））.展开更多
文摘Chengdu Branch,Chinese Science Academy,Chengdu610041)abstract:[Mn(ECZ)abstract: 3 ](NO 3 )abstract: 2 is newly prepared by the aqueous solutions of Mn(NO 3 )abstract: 2 and ethyl carbazate(ECZ)abstract:.The crystal structure has been determined by X-ray crystal diffraction analysis.It belongs to monoclinic with space group of P2 1 /n.The crystal parameters are:a=1.3974(2)abstract:nm,b=0.8796(2)abstract:nm,c=3.4322(7)abstract:nm,β=9 1.25(1)abstract:°,V=4.2175(1)abstract:nm 3 ,Z=8.Its molecular weight is491.30.Mn 2+ is located on the center of the molecular structure.Ethyl carbazate serves a s a bidentate ligand which coordinates to the metal cations with its carbonyl ox ygen atom and the terminal hydrazine nitrogen atom,forming five-member chelatin g rings,and three such rings are formed in each molecule.The coordination number of the metal ion is six and the coordination configuration of the cen-tral ion is octahedral.Specially,antimer configuration phenomenon is found in the molecu le.The complex is fur-ther characterized by element analysis and IR measurement s.The thermal decomposition mechanism is studied by using TG-DTG and DSC techni ques.CCDC:215675.
文摘New quatemary rare earth complexes [Ln(C 6H 5COO) 2(NO 3)(Bipy)] 2(Ln=La,Ce,Pr,Nd,Eu,Gd,Tb,Er) have been synthesized in mixed solution system with 8 hydroxyquinoline as the acidity accommodator and characterized by elemental analysis,IR,UV, 1H NMR,ESR and fluorescence spectra.The crystal structure of complex [Ln(C 6H 5COO) 2(NO 3)(Bipy)] 2 was given,the competition of thermodynamics and kinetics has been observed for the first time.
文摘The two diarylheptanoids (E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl) hept-4-en-3-one 1 (Gingerenone C) and (±)-5-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-7-(4- hydroxyphenyl)-3-heptanone 2 were synthesized from vanillin 3 and 4-hydroxybenzaldehyde 9.
基金Supported by the National Natural Science Foundation of China(No.21272136)Scientific Foundation from graduate school(2015CX131)Youth Talent Development Foundation of China Three Gorges University
文摘The important synthetic precursor（Ⅲ）, 1-（prop-2-yn-1-yl）-7,8-dihydro-1Hbenzo[d][1,3]thiazine-2,5（4H,6H）-dione（C（11）H（11）NO2S）, was prepared through a three-component reaction, which was further transferred into cytotoxic triazoles by alkylation and ＂click＂ synthesis in satisfactory yields of 87%^95%. Their structures were characterized by IR, H-RESI-MS and NMR analysis. Meanwhile, the crystal of Ⅲ was obtained and determined by X-ray single-crystal diffraction. Crystal data： orthorhombic system, space group P212121, a = 5.189（4）, b = 8.661（6）, c = 23.498（17） A, V = 1056.2（13） A^3, Z = 4, F（000） = 464, Dc = 1.392 g/cm^3, μ =0.284 mm^-1, R = 0.0637 and wR = 0.1668 for 8182 independent reflections（R（int） = 0.1580） and 2166 observed ones（I 〉 2σ（I））.
