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Extending polyoxometalates to palladium

Xu, Feng (2012) Extending polyoxometalates to palladium. PhD thesis, University of Glasgow.

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

Abstract

This thesis focuses on inorganic polyoxopalladate cluster chemistry, which results from the reactive hydrolysis product of Pd(II). A series of new polyoxopalladates clusters, designated by {Pdn} (n = 4-84, where n is the number of Pd(II) in the cluster), was found in this study. A supramolecular {Pd17} was first investigated. It was shown that the {Pd17} compound displays a structural variety compared to the parent. Also, a unique interactive {Pd2} core was found in the centre of the cluster, indicated by an intriguing Pd-Pd short distance of 2.76 A. Furthermore, the host compound with a pristine {Pd15} cage structure was isolated later. Both of the novel structures are well characterized. A possible new type of host-guest chemistry between {Pd15} and {Pd17}, was studied by preliminary P-NMR and UV-Vis measurements. The facile synthesis of a giant {Pd84} oxo-cluster wheel was revealed. The molecular wheel {Pd84} has an 7-fold symmetry, which is a rare large prime number. Based on the successfully obtaining another polyoxopalladate cluster, {Pd10}, from a similar synthesis and MS data analysis, a formation mechanism of orderly {Pd84} was proposed. Furthermore, the production organisation of its building block, and driving force to the cyclic shape. Further investigations focused on synthetic strategies in polyoxopalladates were carried out. A new cage structure of {Pd12} was isolated. The prototype of {Pd12X}, with one encapsulated transition metal (X = Mn/Co/Ni), has been discussed. In addition, two hybrid polyoxopalladate clusters, {Pd7} and {Pd11}, and two novel Pd-containing sandwich-type polyoxometalates with tetrametallic-cores were revealed.

Item Type: Thesis (PhD)
Qualification Level: Doctoral
Subjects: Q Science > QD Chemistry
Colleges/Schools: College of Science and Engineering > School of Chemistry
Supervisor's Name: Cronin, Prof. Leroy
Date of Award: 2012
Embargo Date: 8 February 2015
Depositing User: MR FENG XU
Unique ID: glathesis:2012-3178
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 10 Feb 2012
Last Modified: 10 Dec 2012 14:04
URI: http://theses.gla.ac.uk/id/eprint/3178

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