Thermal and electrical properties of porphyrin derivatives and their relevance for molecule interferometry
Thermal and electrical properties of porphyrin derivatives and their relevance for molecule interferometry
The authors present new measurements of thermal and electrical properties for two porphyrin
derivatives. They determine their sublimation enthalpy from the temperature dependence of the
effusive beam intensity. The authors study H2TPP and FeTPPCl in matter-wave interferometry.
Both molecules have nearly equal de Broglie wavelengths but different internal characteristics: only
FeTPPCl exhibits an electric dipole moment of about 2.7 D and the authors discuss its influence
on the molecular interference pattern. The authors add an external electric force field to the
interferometer and use it to measure the scalar polarizability. They compare their experimental
values H2TPP= 105± 4± 6 Å3 and FeTPPCl= 102± 9± 6 Å3 to ab initio calculations and
they discuss the influence of thermal excitations on the polarizability. © 20
1-8
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
Ulbricht, Hendrik
(2007)
Thermal and electrical properties of porphyrin derivatives and their relevance for molecule interferometry.
The Journal of Chemical Physics, .
(doi:10.1063/1.2721563).
Abstract
The authors present new measurements of thermal and electrical properties for two porphyrin
derivatives. They determine their sublimation enthalpy from the temperature dependence of the
effusive beam intensity. The authors study H2TPP and FeTPPCl in matter-wave interferometry.
Both molecules have nearly equal de Broglie wavelengths but different internal characteristics: only
FeTPPCl exhibits an electric dipole moment of about 2.7 D and the authors discuss its influence
on the molecular interference pattern. The authors add an external electric force field to the
interferometer and use it to measure the scalar polarizability. They compare their experimental
values H2TPP= 105± 4± 6 Å3 and FeTPPCl= 102± 9± 6 Å3 to ab initio calculations and
they discuss the influence of thermal excitations on the polarizability. © 20
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Accepted/In Press date: 9 March 2007
e-pub ahead of print date: 24 April 2007
Identifiers
Local EPrints ID: 418108
URI: http://eprints.soton.ac.uk/id/eprint/418108
ISSN: 0021-9606
PURE UUID: ac2a1091-c2fa-4af7-8193-0220a2126e87
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Date deposited: 22 Feb 2018 17:30
Last modified: 16 Mar 2024 03:58
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