Designing disorder into crystalline materials

A Simonov, AL Goodwin - Nature Reviews Chemistry, 2020 - nature.com
Crystals are a state of matter characterized by periodic order. Yet, crystalline materials can
harbour disorder in many guises, such as non-repeating variations in composition, atom …

Hybrid perovskites, metal–organic frameworks, and beyond: unconventional degrees of freedom in molecular frameworks

HLB Boström, AL Goodwin - Accounts of Chemical Research, 2021 - ACS Publications
Conspectus The structural degrees of freedom of a solid material are the various distortions
most straightforwardly activated by external stimuli such as temperature, pressure, or …

A molecular perovskite with switchable coordination bonds for high-temperature multiaxial ferroelectrics

WJ Xu, PF Li, YY Tang, WX Zhang… - Journal of the …, 2017 - ACS Publications
The underlying phase transitions of ferroelectric mechanisms in molecular crystals are
mainly limited to order–disorder and displacive types that are not involved in breaking of the …

Phase transitions and coexistence of magnetic and electric orders in the methylhydrazinium metal formate frameworks

M Mączka, A Gagor, M Ptak, W Paraguassu… - Chemistry of …, 2017 - ACS Publications
We report the synthesis of four perovskite-type metal formate frameworks,[CH3NH2NH2][M
(HCOO) 3](MHyM) with M= Mn, Mg, Fe, and Zn. These compounds exhibit two structural …

Optoelectronic duple bistable switches: A bulk molecular single crystal and unidirectional ultraflexible thin film based on imidazolium fluorochromate

WY Zhang, Q Ye, DW Fu… - Advanced Functional …, 2017 - Wiley Online Library
Optical‐electrical duple bistable switches are those that enable simultaneous conversion of
both optical and electrical signals in one device to realize seamless integration. Herein …

Phase Transition, Dielectric Properties, and Ionic Transport in the [(CH3)2NH2]PbI3 Organic–Inorganic Hybrid with 2H-Hexagonal Perovskite Structure

A García-Fernández, JM Bermúdez-García… - Inorganic …, 2017 - ACS Publications
In this work, we focus on [(CH3) 2NH2] PbI3, a member of the [AmineH] PbI3 series of hybrid
organic–inorganic compounds, reporting a very easy mechanosynthesis route for its …

Ferroelectricity in metal–organic frameworks: characterization and mechanisms

K Asadi, MA van der Veen - European Journal of Inorganic …, 2016 - Wiley Online Library
Ferroelectric metal–organic frameworks are emerging as an exciting field of research and
have witnessed great progress in the last decade. In this contribution, we briefly discuss …

Tilts and shifts in molecular perovskites

HLB Boström - CrystEngComm, 2020 - pubs.rsc.org
Molecular perovskites have attracted widespread research attention for their diverse
properties. Like inorganic perovskites, these systems are susceptible to displacive phase …

Effect of solvent, temperature and pressure on the stability of chiral and perovskite metal formate frameworks of [NH 2 NH 3][M (HCOO) 3](M= Mn, Fe, Zn)

M Mączka, K Pasińska, M Ptak… - Physical Chemistry …, 2016 - pubs.rsc.org
We report the synthesis, crystal structure, and thermal, Raman, infrared and magnetic
properties of [NH2NH3][M (HCOO) 3](HyM) compounds (M= Mn, Zn, Fe). Our results show …

First-principles property assessment of hybrid formate perovskites

A Popoola, PS Ghosh, M Kingsland… - The Journal of …, 2023 - pubs.aip.org
Hybrid organic–inorganic formate perovskites, AB (HCOO) 3, are a large family of
compounds that exhibit a variety of phase transitions and diverse properties, such as (anti) …