期刊
INORGANICA CHIMICA ACTA
卷 364, 期 1, 页码 162-166出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2010.09.010
关键词
Bidentate Lewis acids; Boron; Ferrocene; Heterocycles; Reverse chelate; Tin
资金
- American Chemical Society
- National Science Foundation [CHE-0809642, NSF-CRIF 0116066)]
- Alfred P. Sloan Foundation
- Alexander von Humboldt Foundation
Reaction of the bidentate Lewis acid 1,2-Fc(SnMe2Cl)(B(Me)Cl) (1, Fc = 1,2-ferrocenylene) with 2-trimethylstannylpyridine gave a complex (2), in which the 2-pyridyl group forms a bridge between the Lewis acidic tin and boron centers. The structure of 2 was confirmed by multinuclear and two-dimensional NMR, single crystal X-ray diffraction, and elemental analysis. The crystal structure shows that the pyridyl moiety is positioned endo relative to the substituted Cp ring and UV-Vis spectroscopy revealed an enhancement of the ferrocene-centered dd transition in comparison to related complexes with pyridine as a terminal ligand. (C) 2010 Elsevier B.V. All rights reserved.
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