Evaluation of intermolecular interactions of triphenyl derivatives of elements of the fifth group of the Periodic system by gas-liquid chromatography
Abstract
There is carried out estimation of intermolecular interactions of triphenyl derivatives of elements of
the fifth group of the Periodic system. The aim of this work is to identify main regularities of influence of the
Central atom of an element on a chromatographic and thermodynamic properties triphenylene derivatives of
the elements of the fifth group.
The method of work consists in the preparation of sorbents on the basis of triphenyl derivatives of
the fifth group elements, loading them into the packing column and determining the chromatographic and
thermodynamic properties of the obtained sorbents for the analysis of test substances, which were used as
substances of different donor-acceptor nature. Determined their retention times on the basis of which was
calculated chromatographic factors polarity of Rorshneider and enthalpy of sorption of these substances in
triphenylene derivatives of the elements of the fifth group. There is determined the contribution to the retention
of standard sorbates of different types of intermolecular interactions on the basis of the threedimensional
model. It was relevated the character of intermolecular interactions of triphenyl derivatives of
the fifth group elements with electron - donor and acceptor sorbates, was determined their enthalpy of sorption
and it was found that in addition to phosphorus and arsenic compounds, promising materials for obtaining
sorbents can be organic derivatives of bismuth and antimony.Thus, the method of gas-liquid chromatography shows the effect of the Central atom of the molecule
triphenylene derivatives for their sorption properties in relation to organic substances. The results can be used
in the synthesis of new sorbents for gas-liquid chromatography with controlled selectivity of organic matter
separation by introducing various functional groups capable of intermolecular interaction into the structure of
the molecule.
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References
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