Abstract
Complex 1 (1,2,4-triferrocenylbenzene tricarbonylchromium), possessing four heterometals, has been synthesized efficiently by a new method in one pot. Through detailed study on the NMR chemical shifts of 1 and the ligand 2, the NMR chemical shifts of 1 shift upfield from those of 2. The NMR spectra of 1 have reduced magnetic anisotropy of benzene after Cr(CO)3 coordination with 2. The ferrocenyl groups have electron donating effect on the central benzene ring of 1.
Acknowledgments
We are grateful to the Program for New Century Excellent Talents in University (NCET-08-858), the Natural Science Foundation of China (NSFC 21062011), and the Natural Science Foundation of the Inner Mongolia (20080404MS020).