Gas-phase structures of 1-adamantylphosphines, PH n (1-Ad) 3-n (n = 1-3)

D.A. Wann, A.R. Turner, J.R. Goerlich, L.J. Kettle, R. Schmutzler, D.W.H. Rankin

Research output: Contribution to journalArticlepeer-review

Abstract

The gas-phase structure of 1-adamantylphosphine has been determined by electron diffraction, supplemented with data from ab initio and DFT calculations. The adamantyl fragment was modeled with local C 3v symmetry and the phosphino group was found to be in a position almost bisecting a mirror plane of the adamantyl group, giving the molecule overall approximate C s symmetry. There is a small displacement of the C-P bond from the local threefold axis of the adamantyl group. Geometry optimizations were also performed for bis-(1-adamantyl)phosphine (C 1 point-group symmetry) and tris-(1-adamantyl)phosphine (C 3 symmetry), demonstrating extremely crowded environments around the phosphorus atoms leading to adamantyl groups that were much less symmetric. The adamantyl groups were also found to twist by a significant amount to minimize the strain. © 2010 Springer Science+Business Media, LLC.
Original languageEnglish
Pages (from-to)263-267
JournalStructural Chemistry
Volume22
Issue number2
DOIs
Publication statusPublished - Apr 2011

Bibliographical note

Cited By (since 1996):2

Export Date: 1 October 2013

Source: Scopus

CODEN: STCHE

doi: 10.1007/s11224-010-9695-6

Language of Original Document: English

Correspondence Address: Wann, D. A.; School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom; email: [email protected]

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Keywords

  • 1-Adamantylphosphines
  • Gas electron diffraction
  • Molecular structure
  • Quantum chemical calculations

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