Robust motifs in 2-phenylethylammonium and related tetrahalometallates

Rademeyer, Melanie; Tsouris, Christos; Billing, David G.; Lemmerer, Andreas; Charmant, Jonathan P. H.

doi:10.1039/c0ce00634c

Cited by 16 publications

(6 citation statements)

References 64 publications

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“…The bond lengths of Hg-I are normal and comparable with the counterparts documented previously 6 . The Zn(II) ion binds to two iodine ions with the bond lengths of Zn-I being of 2.666(3) and 2.775(3) Å, respectively, which are normal and comparable with those reported in the literature 7…”

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confidence: 85%

A Novel Quaternary Metal Chalcogenide HgZn2I4Cl2: Solid-State Synthesis and Structure

Chen¹

2013

Asian J. Chem.

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Metal chalcogenides usually exhibit abundant structural chemistry and interesting physical or chemical properties for potential applications in different fields such as ferroelectrics 1 , solar energy conversion 2 , etc. To our best of knowledge, a lot of ternary metal chalcogenides -as a branch of metal chalcogenides, have been synthesized and broadly used in military areas. Among which, the most famous is probably Hg1-xCdxTe (MCT) and CuInSe2, whose important application is found in photoelectric devices of infrared detection 2,3 . Up to date, most of the ternary metal chalcogenides are A-M-Q (A = alkali/ alkaline-earth metals, M = p-block metals, Q = chalcogen = S/Se/Te) compounds, while IIB-Q-X (IIB = Zn/Cd/Hg, X = F/ Cl/Br/I) compounds are still relatively rare. Furthermore, quaternary IIB-Q-X metal chalcogenides (only containing IIB, Q and X) are much more scarce, although lots of other quaternary metal chalcogenides (not only containing IIB, Q and X) like CuHgSeCl 4 and Cd13P4S22I2 5 , have been reported. Our recent efforts in preparing novel IIB-based compounds are mainly focusing on the systems containing both chalcogenide and halide elements. We herein report the solid-state synthesis and crystal structure of a novel quaternary metal chalcogenide HgZn2I4Cl2 (1) with an infinite chain-like structure.Synthesis: The chalcogenide HgZn2I4Cl2 was synthesized from the reaction of HgCl2 (1 mmol, 272 mg) and ZnI2 (2 mmol, 638 mg). The starting materials were loaded into a silica tube, which was flame-sealed under a 10 -3 Torr atmosphere and subsequently placed into a furnace. The tube was heated to 523 K in 6 h from room temperature and kept there for 2 days, then heated to 723 K in 12 h and kept for 15 days,

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confidence: 85%

A Novel Quaternary Metal Chalcogenide HgZn2I4Cl2: Solid-State Synthesis and Structure

Chen¹

2013

Asian J. Chem.

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“…Unlike the Pb- and Sn-based hybrid halides, the optical and electronic properties of the hybrid halides of group 12 metals remain largely unexplored. Notwithstanding a few recent publications focusing on the light emission properties of group 12 metal hybrid halides, ,, most published articles focus on their intriguing structural properties, including structural dimensionalities, impact of hydrogen bonding, molecular orientations of organic cations, etc. − These group 12 metal-based hybrid halides show a remarkable structural flexibility in their tunable dimensionality , and incorporation of functional organic cations, such as chromophores and polymers, , in 2D perovskite structures, both of which can be utilized to prepare functional materials for practical applications, including solid-state lighting applications. This fact is further evidenced by a recent discovery of broadband white light emission in the 2D-layered perovskite compound (C 6 H 11 NH 3 ) 2 CdBr 4 originating from both organic and inorganic layers …”

Section: Introductionmentioning

confidence: 99%

Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals

et al. 2018

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We report syntheses, crystal and electronic structures, and characterization of three new hybrid organic–inorganic halides (R)ZnBr 3 (DMSO), (R) 2 CdBr 4 ·DMSO, and (R)CdI 3 (DMSO) (where (R) = C 6 (CH 3 ) 5 CH 2 N(CH 3 ) 3 , and DMSO = dimethyl sulfoxide). The compounds can be conveniently prepared as single crystals and bulk polycrystalline powders using a DMSO–methanol solvent system. On the basis of the single-crystal X-ray diffraction results carried out at room temperature and 100 K, all compounds have zero-dimensional (0D) crystal structures featuring alternating layers of bulky organic cations and molecular inorganic anions based on a tetrahedral coordination around group 12 metal cations. The presence of discrete molecular building blocks in the 0D structures results in localized charges and tunable room-temperature light emission, including white light for (R)ZnBr 3 (DMSO), bluish-white light for (R) 2 CdBr 4 ·DMSO, and green for (R)CdI 3 (DMSO). The highest photoluminescence quantum yield (PLQY) value of 3.07% was measured for (R)ZnBr 3 (DMSO), which emits cold white light based on the calculated correlated color temperature (CCT) of 11,044 K. All compounds exhibit fast photoluminescence lifetimes on the timescale of tens of nanoseconds, consistent with the fast luminescence decay observed in π-conjugated organic molecules. Temperature dependence photoluminescence study showed the appearance of additional peaks around 550 nm, resulting from the organic salt emission. Density functional theory calculations show that the incorporation of both the low-gap aromatic molecule R and the relatively electropositive Zn and Cd metals can lead to exciton localization at the aromatic molecular cations, which act as luminescence centers.

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“…Such a case has been found for N(CH 3 ) 4 CuBr 4 and N(CH 3 ) 4 ZnBr 4 . The isomorphous structures have been found also for (C 8 H 9 NH 3 ) 2 ZnCl 4 and (C 8 H 9 NH 3 ) 2 CdCl 4 despite a large difference between ionic radius of Zn (0.74 Å) and Cd (0.97 Å) . However, the bis (iminiopyridine) compounds with CuBr 2 and ZnBr 2 differ significantly in molecular structure .…”

Section: Introductionmentioning

confidence: 73%

Syntheses, Crystal Structures and Spectroscopic Studies of Bis[1‐methyl‐3‐(methoxycarbonylmethyl)‐benzimidazolium]²⁺ [CuBr₄]²⁻ and [ZnBr₄]²⁻ Compounds

et al. 2017

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X‐ray diffraction structure of two new bis [1‐methyl‐3‐(methoxycarbonylmethyl) benzimidazolium]2+ [CuBr4]2− and [ZnBr4]2− compounds has been determined. Zn‐crystal is monoclinic with perfect Td symmetry of the ZnBr4 tetrahedron, whereas the Cu‐compound is orthorhombic with D2d symmetry of CuBr4 tetrahedron. The difference in these structures is described as due to the static Jahn‐Teller effect. Vibrational spectroscopy (1800–3200 cm−1) identified hydrogen bond network. NIR‐UV‐Vis spectra (5000–50000 cm−1) are dominated by ligand‐to‐metal bands with d‐d transition contribution. EPR results (Q‐band) analyzed in terms of the MO‐theory showed a very strong delocalization of unpaired electron density on ligands accompanied by the Cu(II) 4pz orbital contribution. This effect is partially compensated by charge transfer transitions to the EPR g‐factor.

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Robust motifs in 2-phenylethylammonium and related tetrahalometallates

Abstract: The novel crystal structures of seven compounds which combine 2-phenylethylammonium cations and perhalometallate anions, all with the general formula (C 8

Cited by 16 publications

References 64 publications

A Novel Quaternary Metal Chalcogenide HgZn2I4Cl2: Solid-State Synthesis and Structure

A Novel Quaternary Metal Chalcogenide HgZn2I4Cl2: Solid-State Synthesis and Structure

Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals

Syntheses, Crystal Structures and Spectroscopic Studies of Bis[1‐methyl‐3‐(methoxycarbonylmethyl)‐benzimidazolium]²⁺ [CuBr₄]²⁻ and [ZnBr₄]²⁻ Compounds

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Robust motifs in 2-phenylethylammonium and related tetrahalometallates

Abstract: The novel crystal structures of seven compounds which combine 2-phenylethylammonium cations and perhalometallate anions, all with the general formula (C 8

Cited by 16 publications

References 64 publications

A Novel Quaternary Metal Chalcogenide HgZn2I4Cl2: Solid-State Synthesis and Structure

A Novel Quaternary Metal Chalcogenide HgZn2I4Cl2: Solid-State Synthesis and Structure

Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals

Syntheses, Crystal Structures and Spectroscopic Studies of Bis[1‐methyl‐3‐(methoxycarbonylmethyl)‐benzimidazolium]2+ [CuBr4]2− and [ZnBr4]2− Compounds

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Syntheses, Crystal Structures and Spectroscopic Studies of Bis[1‐methyl‐3‐(methoxycarbonylmethyl)‐benzimidazolium]²⁺ [CuBr₄]²⁻ and [ZnBr₄]²⁻ Compounds