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Direct observations of 1J(11B, 14N) coupling constants by 11B NMR spectroscopy (1990)

Ouassas, Abdeljalil ; Duplan, Jean-Claude ; Fenet, Bernard ; [et al.]

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 28 (1990), S. 693-695

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ISSN: 0749-1581

Keywords: 11B NMR ; One-bond 11B, 14N coupling ; BXn(NCS)4-n- (X = Cl, F; n = 1, 2, 3) ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The reaction B(NCS)4- + BX4- (X = F, Cl, Br) leads to mixed BXn(NCS)4-n- (n = 1, 2, 3) species easily detected in solution by 11B NMR. Further, with X = Cl, 1J(11B, 14N) values could be measured from the 11B NMR spectra (25.6, 24.5 and 21.4 Hz for n = 3, 2 and 1, respectively). For X = F, the relevant 1J(11B, 14N) values (24.3, 25.2 and 28 Hz for n = 3, 2 and 1, respectively) increase in the same order as the related 1J(11B, 19F) (5.5, 12.7 and 20.0 Hz, respectively). No such 1J(11B, 14N) could be resolved for X = Br.

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/mrc.1260280807

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