Results 91 to 100 of about 2,523 (263)
Magnetic susceptibilities and the order parameters of some 4,4' -disubstituted biphenyl cyclohexanes
, 1983 The diamagnetic susceptibilities of some 4,4'-disubstituted biphenyl cyclohexanes are reported as a function of temperature. The order parameters of the uniaxial nematic, smectic A and smectic B phases are calculated.
H.J. Müller, W. Haase
core +1 more source
Angewandte Chemie, EarlyView.Weak but skilled: Our results highlight the crucial role of intramolecular secondary interactions to induce an efficient ISC between formally identical 1(n,π*) and 3(n,π*) states in chiral thionated phthalimide derivatives. This unprecedented type of inter‐system crossing (ISC) extends the usual thinking of the El‐Sayed principle and enables the ...
Oscar Charpentier +9 more
wiley +2 more sources
Synthesis of 2-iminoxy and 2-diethyl-aminoxy 1,3,2-dioxaarsacyclopentanes and -cyclohexanes
, 1976 2-Iminoxy and 2-diethylaminoxy-1,3,2-dioxaarsacyclo-pentanes and-cyclohexanes have been synthesised by several routes as volatile liquids. Attempts have been made to throw light on the structures of these derivatives by studies of i. r. and p.
Anand, K. L. +3 more
core +1 more source
Mechanophotochemistry: Lighting up EDA Complexes in the Solid State
Angewandte Chemie, EarlyView.Examples of mechanophotochemical EDA complex‐mediated radical reactions, including a Giese reaction, a C─S cross‐coupling reaction, a phosphorylation reaction, and a sulfonylation reaction are shown to rapidly proceed in air using visible light excitation.
Aniket Kumar Srivastawa +1 more
wiley +2 more sources
, 1950 Les hydrocarbures cyclaniques C9H18 suivants ont été isomérisés par le chlorure d'aluminium, à 100° jusqu à obtention de systémes à l'équilibre: n.butylcyclopentane, méthyl‐l‐propyl‐2‐cyclopentanes cis et trans, diéthyl‐1‐2‐cyclopentanes cis et trans, n ...
Chiurdoglu, Grégoire +2 more
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Die Aza‐Büchner–Curtius–Schlotterbeck‐Reaktion: Selektive Bildung Quartärer Kohlenstoffzentren
Angewandte Chemie, EarlyView.Wir stellen die Aza‐Büchner–Curtius–Schlotterbeck‐(ABCS)‐Reaktion vor: eine milde, katalysatorfreie Methode zur Homologierung von Aryliminen. Im Gegensatz zum traditionellen BCS‐Mechanismus durchläuft das Diazo‐Intermediat eine selektive C─C‐Insertion zur Bildung eines quartären Zentrums.
Simon O. Angerer +6 more
wiley +1 more source
Известия Томского политехнического университета: Инжиниринг георесурсов, 2019 Relevance of the work is caused by the need to obtain the detailed information on hydrocarbon compositions and molecule structures of resin-asphaltene components in petroleum from Krapivinskoye oilfield to solve the problems arising at its production ...
Altynay Torlomoeva +3 more
doaj +2 more sources
, 2016 A stereoselective synthesis of cyclohexanes bearing four stereocenters from vinyldiazoacetates and allyl alcohols by a rhodium-carbene initiated domino reaction is described.
Brendan T. Parr (1651969) +1 more
core +2 more sources
, 2003 A general method for the formulation of polarizability tensor and computation of optical anisotropy of a series of substituted cyclohexanes and their bisphenyl fragments, which are model analogues of corresponding polymers is presented.
Sulatha, M. S. +2 more
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Initial Characterization of Low Molecular Weight Hydrocarbons in an Oil Sands Pit Lake
EarthWater-capped tailings technology (WCTT) is a strategy where oil sand tailings are sequestered within a mined-out pit and overlayed with a layer of water in order to sequester tailings with the aim that the resulting pit lake will support aquatic plants ...
Han Bao +3 more
doaj +1 more source