Results 21 to 30 of about 1,330,976 (322)

Solid-State Chemistry with Nonmetal Nitrides [PDF]

open access: yes, 1993
Among the nonmetal nitrides, the polymeric binary compounds BN and Si3N4are of particular interest for the development of materials for high-performance applications. The outstanding features of both substances are their thermal, mechanical, and chemical
Schnick, Wolfgang
core   +1 more source

Aggregation-Induced Fluorescence of Carbazole and o-Carborane Based Organic Fluorophore

open access: yesFrontiers in Chemistry, 2019
Carbazole based fluorophores 9-butyl-3,6-bis-(phenylethynyl)-9H-carbazole (1) and 9-butyl-3,6-bis-(2-phenyl-o-carborane)-9H-carbazole (2) were synthesized via Sonogashira type cross-coupling reaction and followed by insertion with decaborane.
Jiemin Jiao   +7 more
doaj   +1 more source

Synthesis of Borane Complexes: From Small Borane Molecules to Polyhedral Boranes

open access: yesHe huaxue yu fangshe huaxue, 2023
Borane is a class of boron compounds, including active small borane molecules and relative stable polyhedral borane compounds, and has widely applied in energy storage, material science, and pharmaceutical medicine, especially as promising boron carriers
JING Yi   +4 more
doaj   +1 more source

Fast and long-lasting Fe(Ⅲ) reduction by boron toward green and accelerated Fenton chemistry.

open access: yesAngewandte Chemie, 2020
Generation of hydroxyl radicals in the Fenton system (Fe(II)/H 2 O 2 ) is seriously limited by the sluggish kinetics of Fe(III) reduction and fast Fe(III) precipitation.
Peng Zhou   +6 more
semanticscholar   +1 more source

Boron isotope ratio (delta B-11) measurements in water framework directive monitoring programs: comparison between double focusing sector field ICP and thermal ionization mass spectrometry [PDF]

open access: yes, 2010
International audienceThe aim of our research was to compare delta B-11 measurements performed with thermal ionization mass spectrometry (TIMS) and sector field-inductively coupled plasma-mass spectrometry (SF-ICP-MS) and evaluate the feasibility of ...
Aggarwal   +44 more
core   +4 more sources

Novel B(Ar')2(Ar'') hetero-tri(aryl)boranes: a systematic study of Lewis acidity [PDF]

open access: yes, 2016
A series of homo- and hetero-tri(aryl)boranes incorporating pentafluorophenyl, 3,5-bis(trifluoromethyl)phenyl, and pentachlorophenyl groups, four of which are novel species, have been studied as the acidic component of frustrated Lewis pairs for the ...
Ashley   +61 more
core   +2 more sources

Radical Chemistry and Reaction Mechanisms of Propane Oxidative Dehydrogenation over Hexagonal Boron Nitride Catalysts.

open access: yesAngewandte Chemie, 2020
Although hexagonal boron nitride (h-BN) has recently been identified as a highly efficient catalyst for the oxidative dehydrogenation of propane (ODHP) reaction, the reaction mechanisms, especially regarding radical chemistry of this system, remain ...
Xuanyu Zhang   +14 more
semanticscholar   +1 more source

Chemical Bonding in the Boron Buckyball [PDF]

open access: yes, 2008
A symmetry analysis of the valence shell in the boron buckyball B80, shows a perfect match with the symmetry of the valence shell in C60 .The cap atoms participate in the bonding by 30 orbitals which transform as the sigma bonds along the 6-6 edges.
Ceulemans, Arnout   +3 more
core   +1 more source

Macropolyhedral boron-containing cluster chemistry: two-electron variations in intercluster bonding intimacy. Contrasting structures of 19-vertex [(eta(5)-C5Me5)HIrB18H19(PHPh2)] and [(eta(5) -C5Me5)IrB18H18(PH2Ph)] [PDF]

open access: yes, 2004
Fused double-cluster [(5-C5Me5)IrB18H18(PH2Ph)]8, from syn-[(5-C5Me5)IrB18H20] 1 and PH2Ph, retains the three-atoms-in-common cluster fusion intimacy of 1, in contrast to [(5-C5Me5)HIrB18H19(PHPh2)]6, from PHPh2 with 1, which exhibits an opening to a ...
Jelínek, T.   +5 more
core   +1 more source

Palladium Catalysts for Dehydrogenation of Ammonia Borane with Preferential B−H Activation [PDF]

open access: yes, 2010
Cationic Pd(II) complexes catalyzed the dehydrogenation of ammonia borane in the most efficient manner with the release of 2.0 equiv of H_2 in less than 60 s at 25 °C.
Han, Won-Sik   +9 more
core   +2 more sources

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