Jump to ContentJump to Main Navigation
Molecules and ModelsThe molecular structures of main group element compounds$
Users without a subscription are not able to see the full content.

Arne Haaland

Print publication date: 2008

Print ISBN-13: 9780199235353

Published to Oxford Scholarship Online: May 2008

DOI: 10.1093/acprof:oso/9780199235353.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2019. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 13 November 2019

Electron donor–acceptor complexes

Electron donor–acceptor complexes

Chapter:
(p.241) Chapter 16 Electron donor–acceptor complexes
Source:
Molecules and Models
Author(s):

Arne Haaland

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199235353.003.0016

The chapter opens with a comparison of the bond distances, bond energies, and electric dipole moments of ethane and amine borane. Minimum energy rupture of the covalent CC bond in ethane proceeds homolytically to yield two methyl radicals. Minimum energy rupture of the NB bond in H3NBH3 proceeds heterolytically to yield two closed-shell molecules (H3N and BH3). Such bonds are referred to as dative or electron donor-acceptor bonds. Dative bonds are longer and weaker than a covalent bond between the same atoms, and are more sensitive to inductive effects or change of phase. The structures and bond energies of a number of complexes with N, P, O, or S donor atoms and B, Al, Be, Zn, Si, As, Sb acceptor atoms are described. Ring or cage compounds with dative bonding are discussed. Finally, the dative π-bonding in aminoborane (H2NBH2) and borazine (B3N3H6) is discussed.

Keywords:   dative bonds, amine borane, inductive effects, effects of phase change, VSEPR model, aluminum complexes, antimony, rings, cages, dative π-bonding

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .