Trimethylammonium hexachloroindate(III)

Contreras, J. G.; Einstein, Frederick W. B.; Gilbert, M. M.; Tuck, Dennis G.

doi:10.1107/s0567740877006803

Cited by 12 publications

(13 citation statements)

References 11 publications

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“…The number of the coordinated waters decreases with an increase in the HCl concentration from 2.5 for 0.1 M HCl to 0 for 10 M HCl. 16 than that in the tetrahedral [InCl 4 ] − crystal structure (ave. 2.33 Å). 14 This means that the presence of the octahedral complex [InCl 6 ] 3− in highly concentrated HCl (10 M) is a reliable conclusion.…”

Section: Resultsmentioning

confidence: 89%

Structural properties of the inner coordination sphere of indium chloride complexes in organic and aqueous solutions

et al. 2014

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The nature of the inner coordination sphere of In(3+) present in both the organic and aqueous solutions during the solvent extraction of In(3+) from an aqueous HCl solution with tri-n-octyl amine (TOA) was investigated by In K-edge XAFS. This information was then used to clarify the details of the extraction properties of indium chloride anion complexes with TOA. In aqueous HCl solution (0.1-10 M), In(3+) exists as octahedral anion complexes, [InCln(H2O)6-n](3-n) (n ≥ 4); the [InCl6](3-) complex is dominant at 10 M HCl. The extraction of In(3+) from HCl solution with TOA was performed using two kinds of diluents: nitrobenzene (NB) or n-dodecane (DD), which contained 20 vol% of 2-ethylhexanol as an additive. The stoichiometric composition of the extracted complexes, which is estimated from the distribution ratios of In(3+), is affected by the diluents and the HCl concentration of the aqueous phase; the apparent values of TOA/In(3+) in the extracted complex are 3 for DD-1 M HCl (diluent-aqueous phase) and DD-5 M HCl, 2 for NB-1 M HCl and NB-5 M HCl, and 1 for NB-10 M HCl. The EXAFS analysis of these extracted complexes shows that the In(3+) has ∼4 Cl(-) at ∼2.336 Å and no H2O in the inner coordination sphere; additionally, the shape of the XANES suggests that their coordination geometry is tetrahedral. Therefore, the same tetrahedral [InCl4](-) complex is formed during the extraction in spite of the variation in the stoichiometric composition (TOA/In(3+) = 1-3) of the extracted complexes.

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Section: Resultsmentioning

confidence: 89%

Structural properties of the inner coordination sphere of indium chloride complexes in organic and aqueous solutions

et al. 2014

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“…To test this hypothesis we applied BiI 6 3− and PbI 6 4− with closely matching bond lengths to those of the PbS crystal (2.97 A), 30,57−62 and InCl 6 3− , and MnCl 6 4− with considerably shorter bond lengths. 31,32,63 The ligand transfer with all four species worked with a yield of 100% within 10 s of transfer time with no observable variation in reaction time or colloidal stability of the product. All were applied to the same PbS nanocrystal batch to obtain comparable results.…”

Section: Resultsmentioning

confidence: 99%

Quasi-epitaxial Metal-Halide Perovskite Ligand Shells on PbS Nanocrystals

et al. 2017

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Epitaxial growth techniques enable nearly defect free heterostructures with coherent interfaces, which are of utmost importance for high performance electronic devices. While high-vacuum technology-based growth techniques are state-of-the art, here we pursue a purely solution processed approach to obtain nanocrystals with eptaxially coherent and quasi-lattice matched inorganic ligand shells. Octahedral metal-halide clusters, respectively 0-dimensional perovskites, were employed as ligands to match the coordination geometry of the PbS cubic rock-salt lattice. Different clusters (CHNH)[MHal] (M = Pb(II), Bi(III), Mn(II), In(III), Hal = Cl, I) were attached to the nanocrystal surfaces via a scalable phase transfer procedure. The ligand attachment and coherence of the formed PbS/ligand core/shell interface was confirmed by combining the results from transmission electron microscopy, small-angle X-ray scattering, nuclear magnetic resonance spectroscopy and powder X-ray diffraction. The lattice mismatch between ligand shell and nanocrystal core plays a key role in performance. In photoconducting devices the best performance (detectivity of 2 × 10 cm Hz /W with> 110 kHz bandwidth) was obtained with (CHNH)BiI ligands, providing the smallest relative lattice mismatch of ca. -1%. PbS nanocrystals with such ligands exhibited in millimeter sized bulk samples in the form of pressed pellets a relatively high carrier mobility for nanocrystal solids of ∼1.3 cm/(V s), a carrier lifetime of ∼70 μs, and a low residual carrier concentration of 2.6 × 10 cm. Thus, by selection of ligands with appropriate geometry and bond lengths optimized quasi-epitaxial ligand shells were formed on nanocrystals, which are beneficial for applications in optoelectronics.

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“…Thus, it is an effective way that bring small ammonium cations in crystal structure for designing phase transition. At the same time, according to relevant literatures, we found that the In 3+ ion can coordinate with different numbers of halogen anions to form different indium halide anions, such as InX 4 – , InX 5 2– , and InX 6 3– . Polish professor R. Jakubas reported the phase transitions and structures of [(CH 3 ) 4 N]InBr 4 and [(C 2 H 5 ) 4 N]InBr 4 , the results indicate that the order‐disorder transition of organic ammonium is the main factor of phase transition.…”

Section: Introductionmentioning

confidence: 74%

“…, and InX 6 3-. [27][28][29] Polish professor R. Jakubas reported the phase transitions and structures of [(CH 3 ) 4 N]InBr 4 and [(C 2 H 5 ) 4 N]InBr 4 , the results indicate that the order-disorder transition of organic ammonium is the main factor of phase transition. In addition, Professor D.G.…”

Section: -mentioning

confidence: 99%

Switchable Dielectric Behavior and Order‐Disorder Phase Transition in a New Organic‐Inorganic Hybrid Compound: (CH₃NH₃)₄[InCl₆]Cl

Xin

et al. 2020

Eur J Inorg Chem

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A new organic‐inorganic phase transition material (CH3NH3)4[InCl6]Cl (1), has been successfully synthesized and characterized. The compound undergoes a reversible first‐order phase transition at Curie temperature Tc=284 K, accompanied with a wide hysteresis of 12 K, which investigated by differential scanning calorimetry (DSC). The temperature dependence of the dielectric permittivity discloses an obvious step‐like dielectric anomaly. Single crystal X‐ray diffraction reveals that the order‐disorder transition of the [InCl6]3– anion and the methylammonium cation were the main factor drove the phase transition from high temperature phase with the space group P2/m to low temperature phase with the space group P2/n. This finding indicates that In‐based organic–inorganic hybrids compounds can be used to build phase transition materials, which broaden the way for exploring dielectric switching materials.

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Trimethylammonium hexachloroindate(III)

Cited by 12 publications

References 11 publications

Structural properties of the inner coordination sphere of indium chloride complexes in organic and aqueous solutions

Structural properties of the inner coordination sphere of indium chloride complexes in organic and aqueous solutions

Quasi-epitaxial Metal-Halide Perovskite Ligand Shells on PbS Nanocrystals

Switchable Dielectric Behavior and Order‐Disorder Phase Transition in a New Organic‐Inorganic Hybrid Compound: (CH₃NH₃)₄[InCl₆]Cl

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Trimethylammonium hexachloroindate(III)

Cited by 12 publications

References 11 publications

Structural properties of the inner coordination sphere of indium chloride complexes in organic and aqueous solutions

Structural properties of the inner coordination sphere of indium chloride complexes in organic and aqueous solutions

Quasi-epitaxial Metal-Halide Perovskite Ligand Shells on PbS Nanocrystals

Switchable Dielectric Behavior and Order‐Disorder Phase Transition in a New Organic‐Inorganic Hybrid Compound: (CH3NH3)4[InCl6]Cl

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Switchable Dielectric Behavior and Order‐Disorder Phase Transition in a New Organic‐Inorganic Hybrid Compound: (CH₃NH₃)₄[InCl₆]Cl