Two In-based organic–inorganic hybrid compounds with reversible phase transition derived from the order–disorder changes of cations or anions

Abstract

Solid-state phase transition materials have been received extraordinary interest due to their rich physical properties, such as the thermal, dielectric, and ferroelectric properties. Here, two In-based organic-inorganic hybrid compounds, (C6H5CH2CH2NH3)3[InBr5(H2O)]...

Synthesis and Characterization of a Displacement-Type Ferroelectric–Ferroelectric Phase Transition Compound [(NH3)(CH2)3(NH3)]2[InBr6]Br·H2O

“…In 3+ and halogens can form various complex anions with different coordination numbers and charge numbers. Various organic–inorganic hybrid compounds with different compositions and structures can be formed by the combination of In-based complex anions and organic ammonium cations. − Among them, some organic ammonium indium halide compounds have undergone a phase transition under the stimulation of external temperature. For example, (CH 3 NH 3 ) 4 [InCl 6 ]­Cl·H 2 O experiences a phase transition ( T c = 284 K).…”

Zero-Dimensional Lead-Free Halide with Indirect Optical Gap and Enhanced Photoluminescence by Sb Doping

“…Zero-dimensional In-based OIMHs with lone-pair-free metal cations have been discovered recently as the stable and low toxic materials with superior luminescent properties. , To the best of our knowledge, about 20 0D In-based OIMHs have been synthesized, which show structural diversity with the inorganic building blocks including octahedral (InX 6 ) 3– , pyramidal (InBr 5 ) 2– , tetrahedral (InX 4 ) − , and dimeric (In 2 X 10 ) 4– (X = Cl, Br, I). − From a light emission point of view, Zhou et al described orange-red light from the intrinsic self-trapped excited (STE) emission in (C 4 H 4 N 2 )­In 2 Br 10 with PLQY = 3% . Blue emission (PLQY = 16.36%) was also observed in (C 14 H 22 N)­InBr 4 , where the emission is contributed from the organic ligands .…”

Dielectric Response Behavior and Displacement‐Type Metal‐Free Organic‐Inorganic Hybrid Phase Transition Material: trans‐(NH3C6H10NH3)[NO3]2

“…One of the effective strategies for designing and constructing organic-inorganic phase transition compounds is to combine organic cations and inorganic anions. [19][20][21][22] In particular, organic ammonium cations combine with inorganic acid anions to form the metal-free phase transition compounds. [23][24][25][26][27] With the change of temperature, cations or anions are apt to undergo displacement or order-disorder motion, leading to phase transition.…”

“…One of the effective strategies for designing and constructing organic‐inorganic phase transition compounds is to combine organic cations and inorganic anions [19–22] . In particular, organic ammonium cations combine with inorganic acid anions to form the metal‐free phase transition compounds [23–27] .…”