Cooling-rate dependent single-crystal-to-single-crystal phase transition in an organic co-crystal

Adam W. Crawford; Ryan H. Groeneman; Daniel K. Unruh; Kristin M. Hutchins

doi:10.1039/c9cc00836e

Cooling-rate dependent single-crystal-to-single-crystal phase transition in an organic co-crystal

Adam W. Crawford, Ryan H. Groeneman, Daniel K. Unruh, Kristin M. Hutchins

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We investigate a previously unobserved phase transition in an organic co-crystal containing the olefin trans-1,2-bis(4-pyridyl)ethylene. The olefin undergoes molecular motion in the crystalline state, and converts from a disordered to ordered phase upon cooling. Ordering causes a unit cell change to occur via a reversible single-crystal-to-single-crystal (SCSC) transformation. The ordered phase is only accessed via slow cooling; flash cooling locks the crystal in a kinetically trapped, disordered state, and SCSC reversibility is lost. The common practice of flash cooling may inhibit access to thermodynamic products and unique phases.

Original language	English
Pages (from-to)	3258-3261
Number of pages	4
Journal	Chemical Communications
Volume	55
Issue number	22
DOIs	https://doi.org/10.1039/c9cc00836e
State	Published - 2019

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title = "Cooling-rate dependent single-crystal-to-single-crystal phase transition in an organic co-crystal",

abstract = "We investigate a previously unobserved phase transition in an organic co-crystal containing the olefin trans-1,2-bis(4-pyridyl)ethylene. The olefin undergoes molecular motion in the crystalline state, and converts from a disordered to ordered phase upon cooling. Ordering causes a unit cell change to occur via a reversible single-crystal-to-single-crystal (SCSC) transformation. The ordered phase is only accessed via slow cooling; flash cooling locks the crystal in a kinetically trapped, disordered state, and SCSC reversibility is lost. The common practice of flash cooling may inhibit access to thermodynamic products and unique phases.",

author = "Crawford, {Adam W.} and Groeneman, {Ryan H.} and Unruh, {Daniel K.} and Hutchins, {Kristin M.}",

note = "Funding Information: The authors thank Dr Sindee Simon and Dr Yung Koh from the Department of Chemical Engineering at Texas Tech University for performing DSC experiments. K. M. H. gratefully acknowledges financial support from Texas Tech University. Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

doi = "10.1039/c9cc00836e",

language = "English",

volume = "55",

pages = "3258--3261",

journal = "Chemical Communications",

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publisher = "Royal Society of Chemistry (RSC)",

number = "22",

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TY - JOUR

T1 - Cooling-rate dependent single-crystal-to-single-crystal phase transition in an organic co-crystal

AU - Crawford, Adam W.

AU - Groeneman, Ryan H.

AU - Unruh, Daniel K.

AU - Hutchins, Kristin M.

N1 - Funding Information: The authors thank Dr Sindee Simon and Dr Yung Koh from the Department of Chemical Engineering at Texas Tech University for performing DSC experiments. K. M. H. gratefully acknowledges financial support from Texas Tech University. Publisher Copyright: © 2019 The Royal Society of Chemistry.

PY - 2019

Y1 - 2019

N2 - We investigate a previously unobserved phase transition in an organic co-crystal containing the olefin trans-1,2-bis(4-pyridyl)ethylene. The olefin undergoes molecular motion in the crystalline state, and converts from a disordered to ordered phase upon cooling. Ordering causes a unit cell change to occur via a reversible single-crystal-to-single-crystal (SCSC) transformation. The ordered phase is only accessed via slow cooling; flash cooling locks the crystal in a kinetically trapped, disordered state, and SCSC reversibility is lost. The common practice of flash cooling may inhibit access to thermodynamic products and unique phases.

AB - We investigate a previously unobserved phase transition in an organic co-crystal containing the olefin trans-1,2-bis(4-pyridyl)ethylene. The olefin undergoes molecular motion in the crystalline state, and converts from a disordered to ordered phase upon cooling. Ordering causes a unit cell change to occur via a reversible single-crystal-to-single-crystal (SCSC) transformation. The ordered phase is only accessed via slow cooling; flash cooling locks the crystal in a kinetically trapped, disordered state, and SCSC reversibility is lost. The common practice of flash cooling may inhibit access to thermodynamic products and unique phases.

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U2 - 10.1039/c9cc00836e

DO - 10.1039/c9cc00836e

M3 - Article

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AN - SCOPUS:85062766361

SN - 1359-7345

VL - 55

SP - 3258

EP - 3261

JO - Chemical Communications

JF - Chemical Communications

IS - 22

ER -

Cooling-rate dependent single-crystal-to-single-crystal phase transition in an organic co-crystal

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