Hydrogen bonding and cation radical formation of methyl 4-(N,N-dimethylamino)phenyl carbamate, DMAPCMe

Richard K. Laidlaw, Yozo Miura, Janice L. Grant, Lalit Cooray, Matthew Clark, Lowell D. Kispert, Robert M. Metzger

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

The donor DMAPCMe is found by theoretical calculations and cyclic voltammetry to be a moderate electron donor (calculated adiabatic ionization potential 7.17 eV, E1/2 = 0.55 V vs SCE), which is intermediate between the experimental ionization energies of TMPD (6.25 eV), TTF (6.83 eV), and pyrene (7.41 eV). DMAPCMe is extensively hydrogen-bonded in solution, as seen by the growth of a shifted N-H infrared vibration band. The paramagnetic resonance spectrum of the DMAPCMe+ radical cation matches fairly well a simulated monomer radical spectrum, but there is evidence for H-bonded paramagnetic adducts. These same adducts reduce irreversibly at 0.37 V vs SCE in acetonitrile solution.

Original languageEnglish
Pages (from-to)4967-4971
Number of pages5
JournalThe Journal of Chemical Physics
Volume87
Issue number8
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

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