Synthesis of novel bis- and tris- tetrathiafulvalene amphiphiles for use in Langmuir-Blodgett film deposition
Synthesis of novel bis- and tris- tetrathiafulvalene amphiphiles for use in Langmuir-Blodgett film deposition
This thesis describes the synthesis and LB film-forming and conducting properties of bis and tris-TTF amphiphiles in an effort to create systems with enhanced LB film-forming properties.
First generation bis and tris-TTF amphiphiles, such as 112 and 109, were prepared by coupling together mono-TTF derivatives through amide bonds. These novel bis- and tris-TTF amphiphiles showed improved stability in monolayer formation on a water surface, as compared to the mono-TTF derivatives, and were deposited to give LB films. The conductivities of the first generation molecules derived LB films, however, were low (σrt�10-7-10-9 S/cm).
In order to improve the poor conductivity a second generation of bis- and tris-TTF amphiphiles, such as 138 and 143, were synthesised by coupling together mono-TTF derivatives with a 1,3-diaminopropyl spacer. The fabricated LB films of the non-amphiphilic bis-TTF 138 showed an intrinsic conducting behaviour of σrt=10-3 S/cm which increased by the order of a magnitude after doping with iodine. (Fig.4303)
University of Southampton
1995
Parg, Roland Peter
(1995)
Synthesis of novel bis- and tris- tetrathiafulvalene amphiphiles for use in Langmuir-Blodgett film deposition.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
This thesis describes the synthesis and LB film-forming and conducting properties of bis and tris-TTF amphiphiles in an effort to create systems with enhanced LB film-forming properties.
First generation bis and tris-TTF amphiphiles, such as 112 and 109, were prepared by coupling together mono-TTF derivatives through amide bonds. These novel bis- and tris-TTF amphiphiles showed improved stability in monolayer formation on a water surface, as compared to the mono-TTF derivatives, and were deposited to give LB films. The conductivities of the first generation molecules derived LB films, however, were low (σrt�10-7-10-9 S/cm).
In order to improve the poor conductivity a second generation of bis- and tris-TTF amphiphiles, such as 138 and 143, were synthesised by coupling together mono-TTF derivatives with a 1,3-diaminopropyl spacer. The fabricated LB films of the non-amphiphilic bis-TTF 138 showed an intrinsic conducting behaviour of σrt=10-3 S/cm which increased by the order of a magnitude after doping with iodine. (Fig.4303)
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Published date: 1995
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Local EPrints ID: 458656
URI: http://eprints.soton.ac.uk/id/eprint/458656
PURE UUID: 402557d8-a9e5-44ab-934b-cdac288521b5
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Date deposited: 04 Jul 2022 16:53
Last modified: 04 Jul 2022 16:53
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Author:
Roland Peter Parg
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