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本文通过对巯基铁与MoSi_4~(2-)反应的研究,对双立方烷型铁-钼-硫原子簇化合物的形成途径及中间物作了讨论.同时报道了[Fe_4(SPh)_(10)](Et_4N)_2与[MoS_4][Et_4N]_2反应的产物(Et_4N)_(4~-)[Mo_2Fe_7S_8(SPh)_(12)](2)的合成、晶体结构、红外光谱和磁化率.晶体2属三斜晶系,M_r=2670.3;空间群PI;α=12.775(4),b=13.076(3),c=20.576(4)A;α=80.00(2)°,β=81.39(2)°,γ=61.51(2)°;V=2966.3(14)A~3;Z=1;D_c=1.495g·cm~(-3);F(000)=1378;偏离因子R=0.077.特别指出了分子中Mo—Mo’的距离[7.188(6)A]是当今同类化合物中最长的,它对研究固氮酶活性中心模型物的合成和结构规律,有重要意义. 相似文献
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CRYSTAL STRUCTURE OF(Bu4N)2[Pt(C3S5)2] 总被引:1,自引:0,他引:1
<正> The title compound C38H72N2PtS10(Mr=1072.74)crystallizes in triclinic system,space group P1 with cell constants a=11.994(4),b=18.117(7),c=11.855(6)A,α=95.55(4),β=99.14(3),γ=75.71(3)°,V=2460.0A3,Z=2 and Dc=1.45 gcm-3.The structure is solved by direct methods and refined by full-matrix least-squares technique to final R=0.046 and Rw=0.045 based on 5919 independent reflections with I≥3.0(I).The anion [Pt(C3S5)2]2-is approximately planar,of which the platinum-sulfur coordination polyhedron takes a square form with mean Pt-S bond length of 2.310(4)A. 相似文献
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In a reaction system consisting of FeCl2,tetrathiometallate and cycloalkylthiolate,two Fe4S4 cubane-like cluster compounds were obtained with the following crystallographic data:(PhCH2NMe32[Fe4S4 (SC5H9)4](Ⅰ),monoclinic space group P21/c,a=1.6327(4),6=1.1229(3),c=2.802 5( 10) nm,β=94.63(2)°,Z=4,and R=0.074; (Et4N)2[Fe4S4(SC6H11)4](Ⅱ),tetragonal space group I42m,a=1.16705(9),b=1.167 06(2),c=2.063 26(5) nm,Z=2,Dabs=1.28 g/cm3,and R=0.078 The participation of cy-cloalkylthiolate ligand does not obviously arouse the change of the Fe4S4 core structure.Meanwhile,the influence of the cation on the structural symmetry of the Fe4S4 cluster dianion is also discussed. 相似文献
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StructureofCopper(Ⅱ)Bis(piperidyldithiocarbamate)LangJian-ping;LuJian-Mei;BianGuo-Qing(DepartmentofChemistry,SuzhouUniversity... 相似文献
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在乙腈溶液中(Et4N)2[Fe4(SR)10]与(Et4N)2[MoS4]反应半小时生成对氧极为敏感的系列黑色晶状化合物(Et4N)4[Mo2Fe7S8(SR)12](R=C6H5,1;R=C6H4CH3-m, 2;R=C6H4CH3-o, 3;R=C6H4CH3-ρ,4). 2.2THF晶体的分子量为2982.8, 属单斜晶系;空间群为P21/n; a=18.022(2), b=18.375(2), c=22.254(3)A; β=71.04(1)°;V=6969(2)A^3;Dc=1.424g.cm^-^3;Z=2;F(000)=3108.晶体结构用直接法解出,修正至R=0.064. 2.2THF中Mo...Mo'距离为7.234A. 相似文献
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