Issue 7, 1996

Study of electron densities of methyl acetate, N-methylacetamide and N,N′-dimethylurea by quantum mechanical investigations. Part 2. Solvent models

Abstract

The electron densities of a simple ester, amide and urea derivative have been studied with quantum mechanical methods at the Becke3LYP/6-31 + G* level. Solvent effects were modelled with an SCRF approach based on the SCI-PCM electrostatic continuum solvation model and with explicit inclusion of water molecules at different hydrogen bond donor–acceptor sites of the solutes. Discussions of electron densities use Natural Atomic (NAO) and Natural Bond Orbitals (NBO). Electrostatic interactions with a polar solvent yield polarization of the πC[double bond, length half m-dash]O bond towards oxygen, a higher delocalization of lone pairs from –O– or –NH– into the π*C[double bond, length half m-dash]O anti-bond and a higher localization of lone-pairs at the carbonyl oxygen. Particular different changes in charge densities after explicit hydration of the molecules are discussed.

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1996, 1403-1408

Study of electron densities of methyl acetate, N-methylacetamide and N,N′-dimethylurea by quantum mechanical investigations. Part 2. Solvent models

B. Kallies and R. Mitzner, J. Chem. Soc., Perkin Trans. 2, 1996, 1403 DOI: 10.1039/P29960001403

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements