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Dimerisation of caffeine

✍ Scribed by Ian Horman; Bernard Dreux

Publisher: John Wiley and Sons
Year: 1985
Tongue: German
Weight: 236 KB
Volume: 68
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19850680109

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✦ Synopsis

Abstract

Displacements of ^1^H‐NMR chemical shifs for caffeine in D~2~O solution as a function of concentration conform to the behaviour expected for pure dimer formation according to the equilibrium 2(caffeine)⇄(caffeine)~2~ with a statistical probability of at least 95%. Confidence limits reported earlier for the dimerisation constant of caffeine represent the real statistical dispersion in the experimental data and do not reflect a systematic error such as tetramer formation.

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