The effect of pressure on clusters, chains and single-molecule magnets

Parois, Pascal (2010) The effect of pressure on clusters, chains and single-molecule magnets. PhD thesis, University of Glasgow.

Abstract

This research deals with the investigation of the correlation between the structures of molecules and their magnetic properties as a function of pressure. To do so, different kinds of molecules have been chosen from single-molecules magnets, chains to small molecules. The variety of molecules is necessary to find the best candidates for high pressure X-ray crystallography and high pressure magnetic measurements.

Bonds lengths and angles have been successfully altered by using high pressure without the complicating issues of chemical modifications. These structural changes produced a
significant effect on the magnetic properties. A tilting of the Jahn-Teller axis in [Mn12O12(O2CCH2tBu)16(H2O)4].MeNO2.CH2Cl2 has been observed both structurally and magnetically. Modification of π–π interactions from edge to edge interaction to offset π–π
stacking in [Gd(PhCOO)3(DMF)]n or a conversion from a CH–π interaction to a π–π interaction in [N(PhCH2)(CH2CH3)3]2[Fe2OCl6] are also reported.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Keywords: X-ray crystallography, magnetism, single-molecules magnets, high pressure cell, high pressure magnetism, high pressure crystallography
• Subjects: Q Science > QD Chemistry
• Colleges/Schools: College of Science and Engineering > School of Chemistry
• Supervisor's Name: Murrie, Dr. Mark
• Date of Award: 2010
• Depositing User: Mr Pascal Parois
• Unique ID: glathesis:2010-1789
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 07 Jul 2010
• Last Modified: 18 Sep 2013 15:30
• URI: https://theses.gla.ac.uk/id/eprint/1789