GROWTH, STRUCTURE, AND PHASE BEHAVIOR OF DI-TERT-BUTYL-PARA-TERPHENYL CRYSTALS

V. A. Postnikov; Постников В. А.; N. I. Sorokina; Сорокина Н. И.; A. A. Kulishov; Кулишов А. А.; G. A. Yurasik; Юрасик Г. А.; M. S. Lyasnikova; Лясникова М. С.; T. A. Sorokin; Сорокин Т. А.; M. S. Skorotetsky; Скоротецкий М. С.; O. V. Borshchev; Борщев О. В.

doi:10.31857/S0023476123010228

GROWTH, STRUCTURE, AND PHASE BEHAVIOR OF DI-TERT-BUTYL-PARA-TERPHENYL CRYSTALS

Authors: Postnikov V.A.¹, Sorokina N.I.¹, Kulishov A.A.¹, Yurasik G.A.¹^,2, Lyasnikova M.S.¹, Sorokin T.A.¹, Skorotetsky M.S.³, Borshchev O.V.³
Affiliations:
1. Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences, Moscow, 119333 Russia
2. Center of Photochemistry, Federal Scientific Research Centre“Crystallography and Photonics,”Russian Academy of Sciences, Moscow, Russia
3. Enikopolov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Moscow, Russia
Issue: Vol 68, No 1 (2023)
Pages: 121-130
Section: CRYSTAL GROWTH
URL: https://rjmseer.com/0023-4761/article/view/673567
DOI: https://doi.org/10.31857/S0023476123010228
EDN: https://elibrary.ru/DQQVUI
ID: 673567

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Abstract

The results of studying the growth of para-terphenyl derivative (4,4"-di-tert-butyl-para-terphenyl (tBu-3P-tBu)) crystals are presented. The solubility of this compound in toluene at 20°С has been established by spectrophotometry. Using the techniques of growth from solutions and physical vapor transport,tBu-3P-tBu single crystals up to 1 cm long have been obtained for the first time. Their structure at 85 K has been interpreted in the triclinic system, sp. gr. P1 (Z = 8), using single-crystal X-ray diffraction. Flat rectangular crystals with the best morphological characteristics have been grown from vapor. The developed face of these crystals exhibits elementary growth steps 1.4 nm high, corresponding to molecular monolayers oriented in the (001) plane. The presence of a polymorphic transition at 229.2°C and mesomorphic liquid crystal phase above the melting temperature (255.6°С) is found.

Keywords

GROWTH, STRUCTURE, PHASE BEHAVIOR, DI-TERT-BUTYL-PARA-TERPHENYL CRYSTALS

About the authors

V. A. Postnikov

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences, Moscow, 119333 Russia

Email: postva@yandex.ru
Россия, Москва

N. I. Sorokina

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences, Moscow, 119333 Russia

Email: postva@yandex.ru
Россия, Москва

A. A. Kulishov

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences, Moscow, 119333 Russia

Email: postva@yandex.ru
Россия, Москва

G. A. Yurasik

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences, Moscow, 119333 Russia; Center of Photochemistry, Federal Scientific Research Centre“Crystallography and Photonics,”Russian Academy of Sciences, Moscow, Russia

Email: postva@yandex.ru
Россия, Москва; Россия, Москва

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