Analysis of the Symmetry of Crystal Packing Forces by Methyl Proton Tunneling: A Strategy for the Unambiguous Assignment of the Magnetic Jahn - Teller Effect in Molecules

Upali A Jayasooriya; Roderick D Cannon; Christopher E Anson; Elisha Karu; Ahmed K Saad; John P Bourke; Gordon J Kearley; Ross P White

doi:10.1002/(SICI)1521-3773(19980216)37:3<317::AID-ANIE317>3.0.CO;2-H

Analysis of the Symmetry of Crystal Packing Forces by Methyl Proton Tunneling: A Strategy for the Unambiguous Assignment of the Magnetic Jahn - Teller Effect in Molecules

Angew Chem Int Ed Engl. 1998 Feb 16;37(3):317-320. doi: 10.1002/(SICI)1521-3773(19980216)37:3<317::AID-ANIE317>3.0.CO;2-H.

Authors

Upali A Jayasooriya¹, Roderick D Cannon¹, Christopher E Anson¹, Elisha Karu¹, Ahmed K Saad¹, John P Bourke¹, Gordon J Kearley¹, Ross P White¹

Affiliation

¹ School of Chemical Sciences, University of East Anglia, Norwich, NR4 7TJ (UK), Fax: Int. code + (44) 1603 259396.

PMID: 29711258
DOI: 10.1002/(SICI)1521-3773(19980216)37:3<317::AID-ANIE317>3.0.CO;2-H

Abstract

Intrinsic and extrinsic forces behind the distortion in metal atom clusters can be readily distinguished provided that the clusters are embedded in a suitable ligand environment and that the tunneling of the protons in the peripheral ligands is then analyzed by inelastic neutron scattering. For the [Cr₃ O(OOCCH₃ )₆ (H₂ O)₃ ]Cl⋅6 H₂ O model system studied, the tunneling process is very sensitive to the local environment. Thus a tool is available to allow a better assessment of the cause of structural distortions.

Keywords: Carboxylato complexes; Chromium; Jahn - Teller distortion; Neutron scattering; Packing effects.