A magnetic double resonance study of Et2NTeF5: the sign of the Te-F spin-spin coupling constant
- 1 September 1969
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 17 (3), 291-296
- https://doi.org/10.1080/00268976900101041
Abstract
The complex spin system given by diethylaminotelluriumpentafluoride is studied by 1H-{19F}, 1H-{125Te} and 19F-{125Te} double resonance techniques. The signs of the coupling constants are related to the positive vicinal H … H coupling of the ethyl groups, and 1K(Te-F) is found to be negative in agreement with qualitative theoretical expectations. The geminal F-F coupling is negative, and it is suggested that the one-bond reduced coupling constants between F and Sb, Se, and S, are also negative in the species MF6.Keywords
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