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Issue 40, 2009
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Towards a temperature-guided molecular switch: an unusual reversible low-temperature polymorphic phase transition in a conformationally locked environment

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Abstract

A conformationally locked tetraacetate undergoes, quite akin to a temperature-guided molecular switch, a reversible thermal switching between two polymorphic modifications; the room-temperature α-form converted at −4 °C to a low-temperature denser β-form, which displayed an unusual kinetic stability till 67 °C and transformed back to the α-form beyond this temperature.

Graphical abstract: Towards a temperature-guided molecular switch: an unusual reversible low-temperature polymorphic phase transition in a conformationally locked environment

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Article information


Submitted
20 Mar 2009
Accepted
04 Jun 2009
First published
19 Jun 2009

Chem. Commun., 2009, 5981-5983
Article type
Communication

Towards a temperature-guided molecular switch: an unusual reversible low-temperature polymorphic phase transition in a conformationally locked environment

G. Mehta and S. Sen, Chem. Commun., 2009, 5981
DOI: 10.1039/B905651C

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