| 1，3-二(三甲基硅基)-2-叔丁基锂与铁(Ⅱ)、钴(Ⅱ)、镍(Ⅱ)、钛(Ⅳ)的反应及结构 |
| Reaction and Crystal Structures of 1,3-bis(trimethylsilyl)-2-t-butyl-aza-allyl-Lithium with Iron(Ⅱ), Cobalt(Ⅱ), Nickel(Ⅱ), Titanium(Ⅳ) |
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| 摘要: 1，3-二(三甲基硅基)-2-叔丁基锂与氯化镍或四氯化钛反应合成了内消旋的1，3-二(三甲基硅基)-2-叔丁基偶联化合物(1)；与氯化钴和氯化亚铁反应分别生成了二配位的1，3-二(三甲基硅基)-2-叔丁基钴和铁配合物(2，3)。用NMR,元素分析和X-射线衍射对其单晶的结构进行了分析，结果表明：化合物1属三斜晶系；化合物2和3均属单斜晶系，配合物2中心钴为六配位畸变的八面体构型。配合物3与2结构相类似。 |
| 关键词: 1，3-二(三甲基硅基)-2-叔丁基锂 1，3-二(三甲基硅基)-2-叔丁基钴、铁 偶联化合物 晶体结构 |
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| Abstract: Aza-allyl lithium [LiN(R)C( tBu)CHR]2 (R=SiMe3) reacted with NiCl2 or TiCl4 to produce a coupling meso-compound [N(SiMe3)C( tBu)CH(SiMe3)]2 (1), or with CoCl2, FeCl2 (mole ratio 2∶1) to produce complex 1,3-bis(trimethylsilyl)-2-t-butyl-aza-allyl cobalt(Ⅱ) (2) and 1,3-bis(trimethylsilyl)-2-t-butyl-aza-allyl iron(Ⅱ) (3) respectively. Compounds 1, 2 and 3 were characterized by elemental analysis, 1H and 13C NMR spectra and X-ray single crystal diffraction. The results show that the compound 1 belongs to the triclinic space group P1. A centro-symmetric dimer aggregation is observed with the two moiety positioned in trans manner. The complex 2 belongs to the monoclinic space group C2/c. The molecular structure of 2 is rigorous centro-symmetry. The six coordination atoms of two 1-aza-allyl ligands organize the distorted octahedral field of central cobalt atom. The structure of 3 is similar to complex 2. CCDC: 219193, 1; 219194, 2; 219195, 3. |
| Keywords: 1,3-bis(trimethylsilyl)-2-tert-butyl-aza-allyl-lithium 1,3-bis(trimethylsilyl)-2-tert-butyl-aza-allyl cobalt coupling meso-compound crystal structure |
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| 张勇,郭建平,童红波,黄淑萍,刘滇生.1，3-二(三甲基硅基)-2-叔丁基锂与铁(Ⅱ)、钴(Ⅱ)、镍(Ⅱ)、钛(Ⅳ)的反应及结构[J].无机化学学报,2006,22(7):1175-1179. |
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