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水杨醛双缩二氨基硫脲二丁基锡配合物的合成及杀菌活性研究 总被引:1,自引:0,他引:1
利用1,5-水杨醛双缩二氨基硫脲席夫碱与二丁基氧化锡为原料,在苯-甲苯混合溶剂中回流反应合成了有机锡席夫碱配合物,用元素分析、红外光谱、核磁共振谱对目标化合物结构进行了结构表征,并用X-射线单晶衍射对其结构进行了确证.晶体结构分析表明,标题配合物的晶体属三斜晶系,P-1空间群,每个独立单元中含有两个分子结构单元,晶胞参数:a=1.29705(6)nm,b=1.36654(7)nm,c=1.68517(8)nm,α=72.059(1)o,β=87.339(1)o,γ=63.435(1)o,V=2.5270(2)nm3,Z=4,Dcalc =1.433 g/cm3,μ=1.119 mm-1,F(000)=1112,R1=0.0563,wR2=0.1530.分子间经典的N-H...N氢键使分子相互缔合形成二聚体,后者再通过范德华作用力结合堆积形成完全的晶体结构.杀菌活性测定结果表明,标题化合物及其类似物的杀菌活性具有较大的选择性,对苏云金杆菌(B.thuringiensis)和枯草杆菌(B.Subtilis)的杀菌能力较高,而对大肠杆菌(E.Coli)和金黄色葡萄球菌(S.Aureus)的杀菌能力较低. 相似文献
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A novel Tb(Ⅲ) coordination polymer [Tb(bpapO2)2(NO3)3]n [bpapO2 = N2,N6- bi(pyridin-2-yl)pyridine-2,6-diamine-N,N'-dioxide-dioxide] has been synthesized and it exhibits terbium's characteristic fluorescent emission under UV radiation of 326 nm at room temperature. X-ray structural determination indicates that each terbium(Ⅲ) ion, centered in TbO8 core, connects to three adjacent coordinate centers via a bi-dentate ligand bpapO2, forming a one-dimensional coordination polymer. The compound crystallizes in the triclinic system, space group P1, with a = 11.2271(5), b = 11.7997(5), c = 14.8016(6) Ⅲ, α = 72.7060(10), β = 89.9630(10), γ = 66.7680(10)o, Z = 2, Dc = 1.822 g/cm3, V = 1705.14(13) Ⅲ3, F(000) = 932, the final R = 0.0340 and wR = 0.0669 for 4812 observed reflections with I 2σ(I). 相似文献
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合成了三种含电子给体乙炔基桥连二茂铁化合物Fc—C≡C—Ph—(p-OMe)(3a),Fc—C≡C—Ph—(p-NMe2)(3b)与Fc—C≡C—Ph—(p-NPh2)(3c),并对其结构、光化学及电化学性质进行了表征.吸收光谱表明,所有化合物在可见光区400-550nm都可归属为Fe(II)→Cp—C≡C—Ph—(p-R)(Cp为环戊二烯基)的金属到配体的电荷跃迁(MLCT)光谱,同时检测到3a与3c氧化态在近红外区(分别位于946与1044nm)可归属为Cp—C≡C—Ph—(p-R)→Fe(III)的配体到金属的电荷跃迁(LMCT).电化学测试结果表明,三种化合物都有稳定的Fc+/Fc可逆氧化还原电位,且3b与3c还出现Ph—NR2的氧化电位.3b对质子表现出光及电化学敏感性,随着质子的加入,其MLCT光谱红移,Fc+/Fc电位正移,而Ph—NR2+/Ph—NR2峰消失. 相似文献
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The assembly of rigid 1, 4-di(1H-imidazol-4-yl)benzene (L) and Cd(OAc)2·2H2O affords an entangled complex [Cd(L)2(OAc)2]n (1) which was characterized by single-crystal X-ray diffraction, IR, elemental analysis and PXRD. The complex crystallizes in monoclinic, space group P21/c with a = 8.2603(9), b = 11.8162(13), c = 14.4138(16), β = 105.309(2)o, V = 1356.9(3)3, Z = 2, C28H26CdN8O4, Mr = 650.97, Dc = 1.593 g/cm3, μ = 0.856 mm?1, S = 1.015, F(000) = 660, the final R = 0.0456 and wR = 0.1366 for 2532 observed reflections (I > 2σ(I)). 1 possesses [Cd(L)2]n layer motifs, and parallel sets of layer motifs aggregate into a 2D + 2D → 3D mutually interpenetrated system. Photoluminescence study revealed that complex 1 exhibits strong fluorescent emission bands in the solid state at room temperature. 相似文献
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