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.

Due to Embargo and/or Third Party Copyright restrictions, this thesis is not available in this service.

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
Embargo Date:	7 July 2013
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:	10 Dec 2012 13:46
URI:	http://theses.gla.ac.uk/id/eprint/1789

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