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化学学报
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化学学报 ›› 1996, Vol. 54 ›› Issue (3): 298-303. 上一篇    下一篇

研究论文

富勒烯C~6~0与二茂铁酮亚胺电荷转移相互作用的研究

宋礼成;延卫;胡青眉;刘友婴;贺天喜   

  1. 南开大学化学系;南开大学电子科学系
  • 发布日期:1996-03-15

Study on the charge-transfer interaction of fullerene C~6~0 with ferrocenylketimines

SONG LICHENG;YAN WEI;HU QINGMEI;LIU YOUYING;HE TIANXI   

  • Published:1996-03-15

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C~6~0与三种二茂铁酮亚胺η^5-C~5H~5Fe[C~5H~4C(CH~3)=N-C~6H~4R-p]-η^5(1a R=H，1bR=CH~3，1c R=OCH~3)在甲苯和室温下可发生电荷转移相互作用形成三种电荷转移配合物η^5-C~5H~5Fe[C~5H~4C(CH~3)=N-C~6H~4R-p]-η^5/C~6~0 (2a R=H，2b R=CH~3，2c R=OCH~3)。通过紫外光谱证实了它们的存在，并用Benesi-Hildebrand方程求出了2a、2b和2c的电荷转移平衡常数分别为0.769、0.928和2.353mol^-^1·dm^3。鉴于它们远大于普通有机胺与C~6~0形成的电荷转移配合物的平衡常数，因此可认为在2a～2c中存在着由二茂铁核及亚胺基向C~6~0的双重电荷转移相互作用。

关键词: 平衡常数, 电荷转移, 二茂铁 P, 富勒烯, 电荷转移配合物, 酮亚胺 P, 南开大学科学技术发展基金

Three charge-transfer complexes (CTC) η^5-C~5H~5Fe[C~5H~4C(CH~3)=N-C~6H~4R-p]- η^5/C~6~0 (2a R=H; 2b R=CH~3; 2c R=OCH~3) were formed in toluene at room temperature through the interaction between C~6~0 and three ferrocenylketimines η^5-C~5H~5Fe[C~5H~4C (CH~3)=N-C~6H~4R-p]-η^5 (1a R=H; 1b R=CH~3; 1c R=OCH~3). The UV spectra of these CTC gave the evidence for their existence. The CTC formation constants of 2a, 2b and 2c at room temperature in toluene were determined to be 0.769mol^-^1·dm^3, 0.928mol^-^1·dm^3 and 2.353mol^-^1·dm^3, respectively using the Benesi-Hildebrand equation. These constants are much higher that those of CTC derived from organic amines and C~6~0, which strongly supports the double charge-transfer interaction of C~6~0 with both the ferrocenyl and the imine moieties in ferrocenylketimine.

Key words: EQUILIBRIUM CONSTANT, CHARGE TRANSFER, FERROCENE P, FULLERENES

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