Role of entropic effects in controlling the polymorphism in formate ABX3 metal-organic frameworks

Gregor Kieslich; Shohei Kumagai; Keith T. Butler; Takuro Okamura; Christopher H. Hendon; Shijing Sun; Masahiro Yamashita; Aron Walsh; Anthony K. Cheetham

doi:10.1039/c5cc06190c

Role of entropic effects in controlling the polymorphism in formate ABX₃ metal-organic frameworks

Gregor Kieslich
, Shohei Kumagai
, Keith T. Butler
, Takuro Okamura
, Christopher H. Hendon
, Shijing Sun
, Masahiro Yamashita
, Aron Walsh
, Anthony K. Cheetham

Department of Physics

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

65 Scopus citations

Abstract

Polymorphism in formate-based dense metal-organic frameworks with the general formula ABX₃ is predicted by quantum chemical calculations and confirmed experimentally. In particular [NH₃NH₂]Zn(HCOO)₃ crystallizes in two different polymorphs, a perovskite-like framework and a chiral structure with hexagonal channels. A detailed thermodynamic analysis reveals that both structures are very close in free energy and that entropy driven effects are responsible for stabilizing the channel structure.

Original language	English
Pages (from-to)	15538-15541
Number of pages	4
Journal	Chemical Communications
Volume	51
Issue number	85
DOIs	https://doi.org/10.1039/c5cc06190c
State	Published - 2015

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

Access to Document

10.1039/c5cc06190c

Cite this

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title = "Role of entropic effects in controlling the polymorphism in formate ABX3 metal-organic frameworks",

abstract = "Polymorphism in formate-based dense metal-organic frameworks with the general formula ABX3 is predicted by quantum chemical calculations and confirmed experimentally. In particular [NH3NH2]Zn(HCOO)3 crystallizes in two different polymorphs, a perovskite-like framework and a chiral structure with hexagonal channels. A detailed thermodynamic analysis reveals that both structures are very close in free energy and that entropy driven effects are responsible for stabilizing the channel structure.",

author = "Gregor Kieslich and Shohei Kumagai and Butler, \{Keith T.\} and Takuro Okamura and Hendon, \{Christopher H.\} and Shijing Sun and Masahiro Yamashita and Aron Walsh and Cheetham, \{Anthony K.\}",

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year = "2015",

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language = "English",

volume = "51",

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T1 - Role of entropic effects in controlling the polymorphism in formate ABX3 metal-organic frameworks

AU - Kieslich, Gregor

AU - Kumagai, Shohei

AU - Butler, Keith T.

AU - Okamura, Takuro

AU - Hendon, Christopher H.

AU - Sun, Shijing

AU - Yamashita, Masahiro

AU - Walsh, Aron

AU - Cheetham, Anthony K.

PY - 2015

Y1 - 2015

N2 - Polymorphism in formate-based dense metal-organic frameworks with the general formula ABX3 is predicted by quantum chemical calculations and confirmed experimentally. In particular [NH3NH2]Zn(HCOO)3 crystallizes in two different polymorphs, a perovskite-like framework and a chiral structure with hexagonal channels. A detailed thermodynamic analysis reveals that both structures are very close in free energy and that entropy driven effects are responsible for stabilizing the channel structure.

AB - Polymorphism in formate-based dense metal-organic frameworks with the general formula ABX3 is predicted by quantum chemical calculations and confirmed experimentally. In particular [NH3NH2]Zn(HCOO)3 crystallizes in two different polymorphs, a perovskite-like framework and a chiral structure with hexagonal channels. A detailed thermodynamic analysis reveals that both structures are very close in free energy and that entropy driven effects are responsible for stabilizing the channel structure.

UR - https://www.scopus.com/pages/publications/84944200620

U2 - 10.1039/c5cc06190c

DO - 10.1039/c5cc06190c

M3 - Article

AN - SCOPUS:84944200620

SN - 1359-7345

VL - 51

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JO - Chemical Communications

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