Results 31 to 40 of about 898,843 (425)

Structural Diversity in White-Light-Emitting Hybrid Lead Bromide Perovskites.

open access: yesJournal of the American Chemical Society, 2018
Hybrid organic-inorganic halide perovskites are under intense investigations because of their astounding physical properties and promises for optoelectronics.
Lingling Mao   +8 more
semanticscholar   +1 more source

N-Benzyl-N-[2-(N-benzyl-N′,N′,N′′,N′′-tetramethylguanidiniumyl)ethyl]-N′,N′,N′′,N′′-tetramethylguanidinium dibromide 1.5-hydrate

open access: yesIUCrData, 2016
The asymmetric unit of the hydrated title compound, C26H42N62+·2Br−·1.5H2O, comprises one cation, two bromide anions and one and a half water molecules, as one water molecule is fully occupied and the other is only half occupied [0.500 (6)]. Both bromide
Ioannis Tiritiris, Willi Kantlehner
doaj   +1 more source

Advances in Treatment of Brominated Hydrocarbons by Heterogeneous Catalytic Ozonation and Bromate Minimization

open access: yesMolecules, 2019
The formation of carcinogenic bromate ions is a constraint when ozone is used for the remediation of water containing brominated organic materials. With its strong oxidizing ability, ozone rapidly transforms bromide in aqueous media to bromate, through a
Asogan N. Gounden   +1 more
doaj   +1 more source

A New Monomeric Interpretation of Intrinsic Optical Bistability Observed in Yb3+ - Doped Bromide Materials [PDF]

open access: yesChem. Phys. Lett. 381, 163 (2003), 2003
We present a mechanism able to show intrinsic bistable behaviour involving single Yb3+ ions embedded into bromide lattices, in which intrinsic optical bistability (IOB) has been observed. The mechanism is based on the experimentally found coupling between the Yb3+ ion and the totally symmetric local mode of vibration of the [YbBr6]3- coordination unit.
arxiv   +1 more source

UV photodissociation of methyl bromide and methyl bromide cation studied by velocity map imaging [PDF]

open access: yesJournal of Chemical Physics 130 (2009) 034304, 2009
We employ the velocity map imaging technique to measure kinetic energy and angular distributions of state selected CH3 (v2=0,1,2,3) and Br (2P3/2,2P1/2) photofragments produced by methyl bromide photolysis at 215.9 nm. These results show unambiguously that the Br and Br* forming channels result in different vibrational excitation of the umbrella mode ...
arxiv   +1 more source

Pressure-Induced Emission (PIE) of One-Dimensional Organic Tin Bromide Perovskites.

open access: yesJournal of the American Chemical Society, 2019
Low-dimensional halide perovskites easily suffer from the structural distortion related to significant quantum confinement effects. Organic tin bromide perovskite C4N2H14SnBr4 is a unique one-dimensional (1D) structure in which the edge sharing ...
Yue Shi   +7 more
semanticscholar   +1 more source

Compatibilization of HDPE/agar biocomposites with eutectic-based ionic liquid containing surfactant [PDF]

open access: yesJournal of Reinforced Plastics and Composites. 33(5): 440-453, 2014
In this research, eutectic-based ionic liquid specifically choline chloride/glycerol was prepared at a 1:2 mole ratio. The choline chloride/glycerol was added with the different content of surfactant (hexadecyltrimethylammonium bromide). The choline chloride/glycerol-hexadecyltrimethylammonium bromide was introduced into high-density polyethylene/agar ...
arxiv   +1 more source

Composition, Size, and Surface Functionalization dependent Optical Properties of Lead Bromide Perovskite Nanocrystals [PDF]

open access: yesJ. Phys. Chem. Lett. 2020, 2020
The photoluminescence (PL), color purity, and stability of lead halide perovskite nanocrystals depend critically on the surface passivation. We present a study on the temperature dependent PL and PL decay dynamics of lead bromide perovskite nanocrystals characterized by different types of A cations, surface ligands, and nanocrystal sizes.
arxiv   +1 more source

6H-Dipyrido[1,2-a:2′,1′-d][1,3,5]triazin-5-ium bromide monohydrate

open access: yesIUCrData, 2016
In the cation of the title compound, C11H10N3+·Br−·H2O, the central 1,3,5-triazinium ring has a flattened boat conformation and the outer heterocyclic rings are nearly planar [maximum deviations = 0.010 (4) and 0.009 (4) Å] and twisted with respect to ...
Xian-Wu Jiang   +3 more
doaj   +1 more source

1,1′-(Ethane-1,2-diyl)bis(4-{(E)-2-[4-(dimethylamino)phenyl]ethenyl}pyridin-1-ium) dibromide ethanol 0.67-solvate

open access: yesIUCrData, 2021
The asymmetric unit of the title solvated molecular salt, 3C32H36Br2N42+·6Br−·2C2H5OH, consists of 1.5 cations, three bromide anions and one ethanol solvent molecule of crystallization. The half-cation is completed by crystallographic inversion symmetry.
Shengnan Wang, Gang Liu, Zhichao Wu
doaj   +1 more source

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