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Wang N, Hao S, Xiong Y, Li M, Liu K, Wolverton C, Wang Y, Zhao J, Liu Q. Solution-Obtained (NH 4) 3In 0.95Sb 0.05Cl 6 with High External Photoluminescence Quantum Yield and Excellent Antiquenching Properties. Inorg Chem 2023; 62:17940-17945. [PMID: 37844091 DOI: 10.1021/acs.inorgchem.3c02821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
The efficient broad-band emission from low-dimensional metal halides has garnered significant interest. However, most of these materials exhibit poor stability at the operating temperature of light-emitting diodes. In this study, using the solution method (temperature lower than 90 °C), a new compound (NH4)3In0.95Sb0.05Cl6 was obtained with the structure in the Pnma space group featuring unit-cell parameters of a = 12.3871(4) Å, b = 24.9895(9) Å, and c = 7.7844(3) Å. (NH4)3In0.95Sb0.05Cl6 can be prepared by doping (NH4)2InCl5·H2O when the Sb3+ feeding ratio is in the range of 30-80%. Thermal analysis reveals that (NH4)3In0.95Sb0.05Cl6 is stable up to 320 °C. (NH4)3In0.95Sb0.05Cl6 exhibits broad-band yellow-white emission with extremely high internal and external photoluminescence quantum yields of 93 and 77%, respectively. Interestingly, (NH4)3In0.95Sb0.05Cl6 displays remarkable resistance to thermal quenching, retaining 83% of its initial photoluminescence intensity at 80 °C. A white light-emitting diode is fabricated by combining (NH4)3In0.95Sb0.05Cl6 with a commercial phosphor, and a high color rendering of 92.8 was obtained. This work presents an environmentally friendly, efficient, stable UV-excited broad-band emission material for potential solid-state lighting applications.
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Affiliation(s)
- Na Wang
- State Key Laboratory of HVDC, Electric Power Research Institute, China Southern Power Grid, Guangzhou 510663, Guangdong, China
- The Beijing Municipal of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Shiqiang Hao
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Yan Xiong
- State Key Laboratory of HVDC, Electric Power Research Institute, China Southern Power Grid, Guangzhou 510663, Guangdong, China
| | - Mingyang Li
- The Beijing Municipal of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Kunjie Liu
- The Beijing Municipal of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Christopher Wolverton
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Yonggang Wang
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Jing Zhao
- The Beijing Municipal of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Quanlin Liu
- The Beijing Municipal of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Stogniy MY, Anufriev SA, Shmal'ko AV, Antropov SM, Anisimov AA, Suponitsky KY, Filippov OA, Sivaev IB. The unexpected reactivity of 9-iodo-nido-carborane: from nucleophilic substitution reactions to the synthesis of tricobalt tris(dicarbollide) Na[4,4',4''-(MeOCH 2CH 2O) 3-3,3',3''-Co 3(μ 3-O)(μ 3-S)(1,2-C 2B 9H 10) 3]. Dalton Trans 2021; 50:2671-2688. [PMID: 33533344 DOI: 10.1039/d0dt03857a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An unusual reactivity of 9-iodo-nido-carborane [9-I-7,8-C2B9H11]- towards nucleophiles under strong basic conditions was revealed. The nucleophilic substitution of iodine with O- and N-nucleophiles results in [9-RO-7,8-C2B9H11]- (R = H, CH2CH2OMe) and [9-L-7,8-C2B9H11] (L = Py, NEt3, Me2NCH2CH2NMe2), respectively. Reaction of [9-I-7,8-C2B9H11]- with CoCl2 in 1,2-dimethoxyethane in the presence of t-BuOK, depending on the order of addition of the reagents, leads either to a diastereomeric mixture of diiodo derivatives cobalt bis(dicarbollide) rac-[4,4'-I2-3,3'-Co(1,2-C2B9H10)2]- and meso-[4,7'-I2-3,3'-Co(1,2-C2B9H10)2]- or to the corresponding mixture of 2-methoxyethoxy derivatives rac-[4,4'-(MeOCH2CH2O)2-3,3'-Co(1,2-C2B9H10)2]- and meso-[4,7'-(MeOCH2CH2O)2-3,3'-Co(1,2-C2B9H10)2]-. In the presence of accidental admixture of sodium thiosulfate, the reactions of 9-iodo-nido-carborane and 9-(2'-methoxyethoxy)-nido-carborane with CoCl2 in 1,2-dimethoxyethane were found to produce additionally unprecedented tricobalt tris(dicarbollide) cluster Na[4,4',4''-(MeOCH2CH2O)3-3,3',3''-Co3(μ3-O)(μ3-S)(1,2-C2B9H10)3], the central fragment of which is a trigonal bipyramid with apical oxygen and sulfur atoms, and the base is formed by the Co3 triangle flanked by three dicarbollide ligands. In addition, the 2-methoxyethoxy substituents of the dicarbollide ligands chelate the sodium cation in such a way that they form a helix whose rotation direction depends on the enantiomer of the parent ligand. Thus, in this case, induction of the helical chirality of the complex occurs due to the point chirality of the initial inorganic ligand. It is worth noting that in the case of symmetrically substituted 2-methoxyethoxy derivative of nido-carborane [10-MeOCH2CH2O-7,8-C2B9H11]- only formation of the corresponding cobalt bis(dicarbollide) complex [8,8'-(MeOCH2CH2O)2-3,3'-Co(1,2-C2B9H10)2]- was observed.
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Affiliation(s)
- Marina Yu Stogniy
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., Moscow, 119991, Russia.
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Bortoluzzi M, Foschi F, Marchetti F, Pampaloni G, Zacchini S. Electron exchange reactions between tungsten hexachloride and nitrogen donors. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.04.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bortoluzzi M, Marchetti F, Pampaloni G, Zacchini S. The chemistry of high valent tungsten chlorides with N-substituted ureas, including urea self-protonation reactions triggered by WCl6. NEW J CHEM 2016. [DOI: 10.1039/c6nj01822j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Substituted ureas are oxidized by WCl6in dichloromethane, resulting in protonated urea saltsviaactivation of C–H and/or N–H bonds.
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Affiliation(s)
- Marco Bortoluzzi
- Ca' Foscari University of Venice
- Dipartimento di Scienze Molecolari e Nanosistemi
- I-30175 Mestre (Venezia)
- Italy
| | - Fabio Marchetti
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Guido Pampaloni
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Stefano Zacchini
- University of Bologna
- Dipartimento di Chimica Industriale “Toso Montanari”
- I-40136 Bologna
- Italy
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Bortoluzzi M, Marchetti F, Pampaloni G, Pinzino C, Zacchini S. Oxidative Dimerization of Triarylamines Promoted by WCl6, Including the Solid State Isolation and the Crystallographic Characterization of a Triphenylammonium Salt. Inorg Chem 2015; 55:887-93. [DOI: 10.1021/acs.inorgchem.5b02392] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marco Bortoluzzi
- Dipartimento
di Scienze Molecolari e Nanosistemi, Università Ca’Foscari Venezia, Via Torino 155, I-30170 Mestre (VE), Italy
| | - Fabio Marchetti
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi
13, I-56124 Pisa, Italy
| | - Guido Pampaloni
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi
13, I-56124 Pisa, Italy
| | - Calogero Pinzino
- ICCOM-CNR UOS Pisa,
Research Area, Via Moruzzi 1, I-56124 Pisa, Italy
| | - Stefano Zacchini
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
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Bortoluzzi M, Marchetti F, Pampaloni G, Zacchini S. Tribenzylamine C-H activation and intermolecular hydrogen transfer promoted by WCl6. Inorg Chem 2014; 53:3832-8. [PMID: 24624963 DOI: 10.1021/ic5001683] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The 1:1 molar reaction of WCl6 with tribenzylamine (tba), in dichloromethane, selectively afforded the iminium salt [(PhCH2)2N═CHPh][WCl6], 1, and the ammonium one [tbaH][WCl6], 2, in equimolar amounts. The products were fully characterized by means of spectroscopic methods, analytical methods, and X-ray diffractometry. Density functional theory calculations were carried out with the aim of comprehending the mechanistic aspects.
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Affiliation(s)
- Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi, University of Venice , Dorsoduro 2137, I-30123 Venezia
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Greene AF, Chandrasekaran P, Yan Y, Mague JT, Donahue JP. Element misidentification in X-ray crystallography: a reassessment of the [MCl2(diazadiene)] (M = Cr, Mo, W) series. Inorg Chem 2014; 53:308-17. [PMID: 24320788 DOI: 10.1021/ic402246d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of reports describing the syntheses and structures of [MCl2(diazadiene)] (M = Cr, Mo, W) complexes is reassessed in the context of known chemistry of low-valent Group VI metal complexes, crystallographic trends such as M-Cl bond lengths and unit cell volumes, and calculated metal-ligand bond lengths. Crystallographic data and computational results are inconsistent with any of these species being second or third row transition metal complexes. A review of the crystallographic information files accompanying the [MCl2(diazadiene)] (M = Mo, W) published structures reveals that the metal atoms were inappropriately treated with partial site occupancy factors (0.775 for Mo; 0.4005 and 0.417 for W), the effect of which was to manifest lighter-element behavior and better refinement in accord with the metal atoms' correct identity. A deliberate synthesis and characterization by X-ray diffraction of [ZnCl2((Mes)dad(Me))] ((Mes)dad(Me) = 1,4-bis(2,4,6-trimethylphenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene) are reported. Refinement of this structure with the same combination of second or third row metal and offsetting partial site occupancy is shown to provide final refinement statistics essentially the same as with the correct model employing M = Zn at site occupancy 1.00. Use of the published method for synthesis of [WCl2(diazadiene)] with (Mes)dad(Me) and [WBr4(MeCN)2] in lieu of [WCl4(MeCN)2] is shown to produce [ZnBr2((Mes)dad(Me))], which has also been characterized by X-ray diffraction. It is concluded that the unusual putative 12-electron [MCl2(diazadiene)] (M = Cr, Mo, W) complexes are in all cases the corresponding [ZnCl2(diazadiene)] complexes, Zn having been commonly employed as reducing agent in their synthesis.
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Affiliation(s)
- Angelique F Greene
- Department of Chemistry, Tulane University , 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
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Dolci S, Marchetti F, Pampaloni G, Zacchini S. A crystallographic and spectroscopic study on the reactions of WCl6 with carbonyl compounds. Dalton Trans 2013; 42:5635-48. [DOI: 10.1039/c2dt32771f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Müller U, Noll A. (Na-15-Krone-5)2ReCl6·4 CH2Cl2, eine Struktur mit CH2Cl2-Molekülen in pseudohexagonalen Kanälen. Z KRIST-CRYST MATER 2009. [DOI: 10.1524/zkri.218.10.699.20763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
The monoclinic crystal structure of (Na-15-crown-5)2ReCl6·4 CH2Cl2 was determined by X-ray diffraction (P21/c, Z = 4, R
1 = 0.061). It contains octahedral ReCl6
2- ions that are joined on two opposite octahedron faces to two Na+ ions; each Na+ is coordinated with one crown ether molecule. One of the crown ether molecules is disordered in two orientations. The resulting ‘Kro-Re-Kro’ units have a nearly cylindrical shape and are stacked to rods that run parallel to c. The rods form a pseudohexagonal rod packing in which one third of the rods is missing. The channels in the places of the missing rods are filled with solvent molecules showing high thermal motion. Another description is that of a hexagonal-closest packing of Kro-Re-Kro units, the channels resulting from the strings of face-sharing octahedral voids of the packing. Group–subgroup relations show that the deviation of the Kro-Re-Kro packing from hexagonal symmetry is astonishingly small. The crystal structure of ‘(P(C6H5)4)2ReCl6·2 CH3CN’ is confirmed; however, the chemical formula must be corrected, it is (P(C6H5)4)2ReCl6·4 CH3CN).
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Neumüller B, Weller F, Dehnicke K. Kristallstruktur und Schwingungsspektrum von (H2NPPh3)2[SnCl6]·2CH3CN. Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200400525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Neum�ller B, Dehnicke K. �ber Reaktionen von Hexachlorodiberyllat mit Trimethylsilyl-N-dimethylamid. Die Kristallstrukturen von (Ph4P)3[Be2Cl5(OSiMe3)][BeCl3(Me2NSiMe3)], (Ph4P)[BeCl3(HNMe2)] und (Ph4P)(H2NMe2)[BeCl4]. Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200400451] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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