Thermal decomposition paths in A2CuCl4 complexes: anilinium and its derivatives

Vishwakarma, Ashok K.; Ghalsasi, Prasanna S.

doi:10.1007/s10973-011-1633-3

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…During thermal investigation of organic-inorganic hybrid materials, A 2 CuCl 4 (where A = derivatives of aniline, benzylamine, aliphatic amines), most of the compounds in series, loose organic amine prior to the liberation of HCl/Cl 2 gas, except exactly opposite behavior for the derivatives of benzylamine 14 . This result suggests a stable Cu(II)-benzylamine (and its derivatives) complex which desorb HCl gas and hence ‘might re-adsorb’.…”

Section: Resultsmentioning

confidence: 99%

Accommodative Behavior of Non-porous Molecular crystal at Solid-Gas and Solid-Liquid Interface

Mande

Ghalsasi

2015

Sci Rep

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Molecular crystals demonstrate drastically different behavior in solid and liquid state, mainly due to their difference in structural frameworks. Therefore, designing of unique structured molecular compound which can work at both these interfaces has been a challenge. Here, we present remarkable ‘molecular’ property by non-porous molecular solid crystal, dinuclear copper complex (C6H5CH(X)NH2)2CuCl2, to reversibly ‘adsorb’ HCl gas at solid-gas interface as well as ‘accommodate’ azide anion at solid-liquid interface with crystal to crystal transformation. The latter process is driven by molecular recognition, self-assembly, and anchimeric assistance. The observed transformations are feasible due to breathing of inner and outer coordination sphere around metal center resulting in change in metal polyhedra for ‘accommodating’ guest molecule. These transformations cause changes in optical, magnetic, and/or ferroelectric property offering diversity in ‘sensing’ application. With the proposed underlying principles in these exceptional reversible and cyclic transformations, we prepared a series of compounds, can facilitate designing of novel multifunctional molecular materials.

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Section: Resultsmentioning

confidence: 99%

Accommodative Behavior of Non-porous Molecular crystal at Solid-Gas and Solid-Liquid Interface

Mande

Ghalsasi

2015

Sci Rep

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Structural phase transition, electrical and semiconducting properties in a lead‐free 2D hybrid perovskite‐like compound: [Cl‐(CH₂)₂‐NH₃]₂[CuCl₄]

Hajlaoui

Audebrand

Roisnel

et al. 2019

Applied Organom Chemis

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A new layered perovskite‐type organic–inorganic hybrid compound: [Cl‐(CH2)2‐NH3]2[CuCl4] (1), in which 2‐chloroethylammonium cation occupies the space enclosed by the CuCl6 octahedra, has been successfully synthesized. It is found that the compound exhibits the semiconducting properties with the optical band gap equal to 1.98 eV, confirmed by AC conductivity measurements, which varies between 10−5 and 10−4 Ω−1 m−1. Also, the low activation energy at low temperatures (0.26 eV) can indicate the electronic conduction of this material. Compound (1) displays phase transitions at T1 = 281 K and T2 = 380 K, confirmed by DSC, electrical and dielectric measurements. Single‐crystal X‐ray diffraction data at variable temperatures reveal that symmetry‐breaking occurs from P21/c (at 296 K ˃ T1) to P‐1 (at 150 K ˂ T1), originating directly from the [Cl‐(CH2)2‐NH3]+ cation conformational changes and the distortions of CuCl64− octahedra caused by the Jahn‐Teller effect in the inorganic layers. Meanwhile, organic 2‐chloroethylammonium moieties display some boat‐like conformation below T1, which transforms to a chair‐like structure above T1. This study paves the pathway to explore new lead‐free hybrid perovskites with targeted properties for thermoelectric, supercapacitors, batteries, environmentally friendly processing and semiconductor applications.

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Crystal structure, spectroscopy, DFT studies and thermal characterization of Cobalt(II) complex with 2-protonated aminopyridinium cation as ligand

Mhadhbi

Saïd

Elleuch

et al. 2016

Journal of Molecular Structure

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Thermal decomposition paths in A2CuCl4 complexes: anilinium and its derivatives

Cited by 5 publications

References 14 publications

Accommodative Behavior of Non-porous Molecular crystal at Solid-Gas and Solid-Liquid Interface

Accommodative Behavior of Non-porous Molecular crystal at Solid-Gas and Solid-Liquid Interface

Structural phase transition, electrical and semiconducting properties in a lead‐free 2D hybrid perovskite‐like compound: [Cl‐(CH₂)₂‐NH₃]₂[CuCl₄]

Crystal structure, spectroscopy, DFT studies and thermal characterization of Cobalt(II) complex with 2-protonated aminopyridinium cation as ligand

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Thermal decomposition paths in A2CuCl4 complexes: anilinium and its derivatives

Cited by 5 publications

References 14 publications

Accommodative Behavior of Non-porous Molecular crystal at Solid-Gas and Solid-Liquid Interface

Accommodative Behavior of Non-porous Molecular crystal at Solid-Gas and Solid-Liquid Interface

Structural phase transition, electrical and semiconducting properties in a lead‐free 2D hybrid perovskite‐like compound: [Cl‐(CH2)2‐NH3]2[CuCl4]

Crystal structure, spectroscopy, DFT studies and thermal characterization of Cobalt(II) complex with 2-protonated aminopyridinium cation as ligand

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Structural phase transition, electrical and semiconducting properties in a lead‐free 2D hybrid perovskite‐like compound: [Cl‐(CH₂)₂‐NH₃]₂[CuCl₄]