Overview of Low-Temperature Heat Capacity Data for Zn<sub>2</sub>(C<sub>8</sub>H<sub>4</sub>O<sub>4</sub>)<sub>2</sub><sup>.</sup>C<sub>6</sub>H<sub>12</sub>N<sub>2</sub> and the Salam Hypothesis

Overview of Low-Temperature Heat Capacity Data for Zn<sub>2</sub>(C<sub>8</sub>H<sub>4</sub>O<sub>4</sub>)<sub>2</sub><sup>.</sup>C<sub>6</sub>H<sub>12</sub>N<sub>2</sub> and the Salam Hypothesis

The review presents the progress in the analysis of low-temperature heat capacity of the metal-organic framework Zn<sub>2</sub>(C<sub>8</sub>H<sub>4</sub>O<sub>4</sub>)<sub>2</sub><sup>.</sup>C<sub>6</sub>H<sub>...

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Bibliographic Details
Main Authors: Svetlana Kozlova, Maxim Ryzhikov, Denis Pishchur, Irina Mirzaeva
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Symmetry
Subjects:
heat capacity
metal-organic framework
triethylenediamine (DABCO) molecules
racemate
Salam hypothesis
Online Access:https://www.mdpi.com/2073-8994/11/5/657
Description
Summary:The review presents the progress in the analysis of low-temperature heat capacity of the metal-organic framework Zn<sub>2</sub>(C<sub>8</sub>H<sub>4</sub>O<sub>4</sub>)<sub>2</sub><sup>.</sup>C<sub>6</sub>H<sub>12</sub>N<sub>2</sub> (Zn-DMOF). In Zn-DMOF, left-twisted D<sub>3</sub>(S) and right-twisted D<sub>3</sub>(R) DABCO molecules (C<sub>6</sub>H<sub>12</sub>N<sub>2</sub>) can transform into each other by tunneling to form a racemate. Termination of tunneling leads to a phase transition in the subsystem of twisted molecules. It is suggested that Zn-DMOF may be considered a model system to study the mechanisms of phase transitions belonging to the same type as hypothetical Salam phase transitions.
ISSN:2073-8994

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