Conclusions
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1.
An increase in the barriers of rotation around the\(C\dddot ---N\) bond is observed when dimethylaminofulvene is coordinated with transition metal (Cr, Mo, W) carbonyls.
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2.
In weakly acid media, where the complexes are protonated at the N atom, the barrier of rotation decreases, while in strongly acid media, where the metal atom is protonated, it increases.
Literature cited
H. Kessler, Tetrahedron,30, No. 13, 1861 (1974).
J. M. Jackman and F. A. Cotton, Dynamic Nuclear Magnetic Resonance Spectroscopy, Academic Press, New York (1975).
N. M. Sergeev, Usp. Khim.,42, No. 5, 769 (1973).
V. N. Setkina, B. N. Strunin, and D. N. Kursanov, J. Organomet. Chem.,186, 325 (1980).
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1652–1653, July, 1981.
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Bakhmutov, V.I., Strunin, B.N. & Setkina, V.N. Hindered rotation around\(C\dddot ---N\) bond in π-complexes of 6-dimethylaminofulvene with group VIB metal carbonyls. Russ Chem Bull 30, 1341–1342 (1981). https://doi.org/10.1007/BF01418011
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DOI: https://doi.org/10.1007/BF01418011