Signs of Proximate 31P, 19F and 19F, 19F Spin-Spin Coupling Constants in 2-Trifluoromethylphenyldifluorophosphine

DOI: 10.1002/mrc.1270180209

Source and publish data:

Organic Magnetic Resonance p. 90 - 91 (1982)

Update date:2022-08-02

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Authors:

Schaefer, Ted

Marat, Kirk

Lemire, Alberta

Janzen, Alexander F.

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Article abstract of DOI:10.1002/mrc.1270180209

In 2-trifluoromethylphenyldifluorophosphine the proximate couplings ⁴J(¹⁹F³¹P) and ⁵J(¹⁹F¹⁹F) are +68.3 and +8.3 Hz, respectively. ¹J(¹³C³¹P) is -57.0 Hz, ²J(¹³C-1, ¹⁹F) is 9.9 Hz and ²J(¹³C-6, ³¹P) is 10.1 Hz.The trifluoromethyl substituent induces substantial changes in some coupling constants, particularly those between the ³¹P and ring ¹³C nuclei.

Full text of DOI:10.1002/mrc.1270180209

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