硼化合物研究Ⅶ.BnHn²-及B₃H₈和C-5H₅FeC₅H₄CH₂N（H）Me₂C1及Fe[C₅H₄CH₂N（H）Me₂C1]₂的反应

硼化合物研究Ⅶ.BnHn 2 -及B 3 H 8 和C-5H 5 FeC 5 H 4 CH 2 N（H）Me 2 C1及Fe[C 5 H 4 CH 2 N（H）Me 2 C1] 2 的反应 STUDIES ON BORON COMPOUNDS Ⅶ. The Reaction of BnHn 2- and B 3 H 8 - with C 5 H 5 FeC 5 H 4 CH 2 N（H）Me 2 Cl and Fe[C 5 H 4 CH 2 N（H） Me 2 Cl] 2 张国敏 Zhang Guomin Zhang Zhaogui 1 2 first-author 张招贵 1 2 张永茂 1 2 陈志伟 1 2 武汉大学化学系 武汉大学化学系 Chemistry Department of Wuhan University) Zhang Yongmao Chen Ziwei Chemistry Department of Wuhan University) Zhang Yongmao Chen Ziwei 中国科学院福建物质结构研究所 中国科学院福建物质结构研究所 本文报道B 12 H 12 2- 、B 10 H 10 2- 、B 9 H 9 2- 、B 11 H 14 - 及B 3 H 8 - 阴离子化合物分别与C 5 H 5 FeC 5 H 4 CH 2 N（H）Me 2 Cl[Ⅲ]和Fe（C 5 H 4 CH 2 N（H）Me 2 Cl） 2 [Ⅳ]反应合成了它们的衍生物并研究了它们的反应性能。发现C 3 H 6 FeC 5 H 4 CH 2 N（H）Me 2 B 3 H 8 不稳定,在不同的条件下降生成C 5 H 5 FeC 5 H 4 CH 2 NMe 2 ·BH 3 [X],B 9 H 9 2- 及B 11 H 14 - 与[Ⅲ]反应时硼化物发生降解也得到化合物[Ⅹ] 。并测定了[C 5 H 5 FeC 5 H 4 CH 2 N（H）Me 2 ] 2 B 12 H 12 的晶体结构。 This paper deals with the reaction of B n H n 2- （n=9, 10 or 12 ）and B 3 H 8 - with C 5 H 5 FeC 5 H 4 CH 2 ,N（H）Me 2 Cl and Fe [C 5 H 4 CH 2 N（H）Me 2 Cl], in aquious solution to give a series of new eompounds in good yield. C 5 H 5 FeC 5 H 4 CH 2 N（H） Me 2 B 3 H 8 can be prepared from the reaction of B 3 H 8 - With C 5 H 5 FeC 5 H 4 CH 2 N（H）Me,Cl. It is an unstable compound and degrades step by step into C 5 H 5 FeC 5 H 4 CH 2 NMe 2 .BH 2 . The products obtainded from the reaction of B 9 H 9 2- or B 11 H 14 with C 5 H 5 FeC 5 H 4 CH 2 N（H）Me 2 Cl also undergo degradation reaction The final products are C 5 H 5 FeC 5 H 4 CH 2 NMe 2 . BH 3 . The Crystal of [C 5 H 5 FeC 5 H 4 N（H）Me 2 ] 2 B 12 H 12 is Orthorhombic belonging to the space group Pcnb with a=12.975±（26）, b=16.342±（28）, c=17.582±（48）, α=β=γ=90°, V=3728 3 , Z=4. The structure has been so-lved and refined to R factor of 0.0588 for 1674 independent intensities grea-ter than an（Ⅰ）. [C 5 H 5 FeC 5 H 4 CH 2 N（H）Me 2 ] 2 B 12 H 12 is also an ionic compound. The anions B 12 H 12 2- are cations [C 5 H 5 FeC 5 H 4 CH 2 N（H）Me 2 ] + are of the dis-torted l e xahedral co-ordination and of distorted tetragonal co-ordination res-pectively. The cyclopendienoic rings are plane regular pentagonal and the planes of two cyclopendienoic rings are approximately paralled. The dihedral angle between them is 4.4°. The average bond lengths are as follows Fe—C=2.053±（4）, C—C（RING）=1.369±（7） and 1.409±（5）. The anion B 12 H 12 2- is icosahedron with an average bond length B—B=1.786q±（6）. 1984-01-01 2021-04-01 1