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维生素B1—金属配合物的制备及其分子结构 总被引:1,自引:0,他引:1
制得了M(th)Cl_3 (M=Zn(Ⅱ)、Cd(Ⅱ)、Mn(Ⅱ)、Co(Ⅱ))、Cu(thH)Cl_4和Hg_3(C_(12)H_(16)N_4OS)Cl_8三种类型的维生素B_1-金属配合物。结构表征表明,Zn、Cd、Mn、Co配合物属M—N配位型,Cu配合物属离子型,Hg配合物既有M—O键合,又有离子键存在。 相似文献
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<正> The title compound was synthesized by Friedel-Crafts reaction of tetrahydroxycalix [4] arene and propionyl choride, and its crystal structure was determined by X-ray diffraction technique. C10O8H40,Mr = 648. 75, triclinic, space group P1 with cell parameters, a = 9. 930(5), b = 11. 838(3), c=14. 522(7) A,α= 94. 92(3),β=102. 96(4),γ= 98. 32(3)°, V = 1635A3, Z = 2, Dc = 1. 399g/ cm3, μ(CuKa) = 3. 27cm-1, F (000) = 344. The final R = 0. 075, Rw = 0.092 for 5716 independent reflections with I>3σ(I). The crystal structure analysis shows that the molecule exists in fine cone conformation. 相似文献
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CRYSYTAL AND MOLECULAR STRUCTURES OF η^8—CYCLOOC—TATETRAENYLLANT 总被引:1,自引:0,他引:1
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<正> C14H13Cl6NSSb, Mr =561.8, Monoclinic, C2/c1 8=15,32(1), b= 11.72(1), c= 11.10(1)A,β=99.31(3)°,V=1969(1)A3,Dc=1,902g.cm-3, Z=4,CuKα,λ=1.5418A,μ=200.95cm-1.Room temperature, final R=0.051 for 1197 unique reflections with I>, 3.0σ(I).Pronounced defornation of the Molecular structure has been observed when the neutral N-ethylphenothia-zine is transformed into its radical cation. The structural features of the radical cation are compared with those of N-methyl analogue. 相似文献
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<正> The title complex, C15S2Cl2H16Pd, Mr = 437. 73, crystallizes in monoclinic space group P21/c with a = 10. 177(2), b=10. 788(1), c= 15. 305(1) (?),β=102. 73(1)°, V = 1638. 1(?)3, Z = 4, Dx =1.77g/cm3, μ = 16.8cm-1, F (000) = 872. The final structure refinement converged with unweighted and weighted R factors of 0. 025 and 0. 033 for 2490 observed unique reflections. The complex has mononuclear structure with the ligand cis-chelated to the Pd(Ⅱ) atom. 相似文献
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制备了Fe(saldpt)sal单晶并作了晶体结构分析。晶体数据:单斜,空间群P21/C(#14),a=12.486(5),b=18.502(8),c=10.870(5)Å,β=104.23(3)°,V=2434(2)Å3,Z=4,Dc=1.40g/cm3. 相似文献
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