作者:B.N. Strunin、V.I. Bakhmutov、N.I. Vasyukova、V.N. Trembovler、V.N. Setkina、D.N. Kursanov
DOI:10.1016/0022-328x(83)80197-1
日期:1983.4
η5-6-N-Dimethylamino-2,3-benzofulvenchromium tricarbonyl has been synthesized. The rotational isomerism of the complex and the parent fulvene and the kinetic parameters of the barriers to rotation about the bond have been determined by dynamic 1H NMR spectroscopy. π-Coordination increases the free energy of the rotational barrier, i.e. increases the degree of double-bond character between the C(6) and
η 5 -6- Ñ二甲基氨基-2,3- benzofulvenchromium三羰基已被合成。通过动态1 H NMR光谱测定了配合物和母体富烯的旋转异构现象以及绕键旋转的势垒的动力学参数。π配位增加了旋转势垒的自由能,即增加了C(6)和N原子之间的双键特征程度,因此增强了环外双键的π电子极化。研究了配合物和母体富烯的电子碰撞质谱。