Results 11 to 20 of about 332,578 (307)

Applications of the Conceptual Density Functional Theory Indices to Organic Chemistry Reactivity [PDF]

open access: yes, 2016
Indexación: Web of ScienceTheoretical reactivity indices based on the conceptual Density Functional Theory (DFT) have become a powerful tool for the semiquantitative study of organic reactivity.
Domingo, Luis R.   +2 more
core   +2 more sources

Electronic state spectroscopy of C2Cl4 [PDF]

open access: yes, 2009
The VUV spectrum of C2Cl4 is reported in the energy range 3.8-10.8 eV (325-115 nm). Several photoabsorption features are observed for the first time, including a very weak low-lying band which is provisionally attributed to a π → π* triplet transition ...
Barc, B.   +5 more
core   +1 more source

Electron correlation effects in electron-hole recombination in organic light-emitting diodes [PDF]

open access: yes, 2002
We develop a general theory of electron--hole recombination in organic light emitting diodes that leads to formation of emissive singlet excitons and nonemissive triplet excitons.
A. P. Monkman   +38 more
core   +2 more sources

Roles for jasmonate- and ethylene- induced transcription factors in the ability of Arabidopsis to respond differentially to damage caused by two insect herbivores

open access: yesFrontiers in Plant Science, 2014
Plant responses to insects and wounding involve substantial transcriptional reprogramming that integrates hormonal, metabolic, and physiological events.
Erin MacNeal Rehrig   +3 more
doaj   +1 more source

Integrating nitric oxide into salicylic acid and jasmonic acid/ ethylene plant defence pathways.

open access: yesFrontiers in Plant Science, 2013
Plant defence against pests and pathogens is known to be conferred by either salicylic acid (SA) or jasmonic acid (JA)/ethylene (ET) pathways, depending on infection or herbivore-grazing strategy.
Luis A.J. Mur   +4 more
doaj   +1 more source

Ethylene modulates sphingolipid synthesis in Arabidopsis

open access: yesFrontiers in Plant Science, 2015
Sphingolipids have essential structural and bioactive functions in membranes and in signaling. However, how plants regulate sphingolipid biosynthesis in the response to stress remains unclear.
Jian-xin eWu   +4 more
doaj   +1 more source

Synthesis and vinyl benzene copolymerization of novel trisubstituted ethylenes: 15. Halogen and methoxy ring-substituted isopropyl 2-cyano-3-phenyl-2-propenoates

open access: yesDesigned Monomers and Polymers, 2020
Condensation of isopropyl cyanoacetate and substituted benzoic aldehydes resulted in formation of novel isopropyl esters of 2-cyano-3-phenyl-2-propenoic acid, RPhCH = C(CN)CO2CH(CH3)2 (where R is 2,3,4-trimethoxy, 2,4,5-trimethoxy, 2,4,6-trimethoxy, 3 ...
Gregory B. Kharas   +10 more
doaj   +1 more source

Cycloaddition Reactions of Carbonyl Compounds Possessing High Energy Content [PDF]

open access: yes, 1971
Detailed structure and kinetic analyses of the photocycloaddition of alkanones to (a) α,β-unsaturated nitriles and (b) enol ethers have been performed. The excited singlet states of alkanones were found to add stereospecifically and regiospecifically to ...
Turro, Nicholas J.
core   +2 more sources

Methanogenic and perchloroethylene-dechlorinating activity of anaerobic granular sludge [PDF]

open access: yes, 1998
The biodegradation and toxicity of tetrachloroethylene (C2Cl4) and trichloroethylene (C2HCl3) were studied with different anaerobic enrichment cultures using the following electron donors: acetate, propionate, butyrate, methanol, formate and hydrogen ...
Bhatnagar, Lakshmi   +2 more
core   +2 more sources

Conceptual DFT study based on the characterization of the local electrophilicity and nucleophilicity for intramolecular Diels-Alder reaction of the trans isomers of 4-[(4E)-4,6-heptadien-1-yl]-2-cyclohepten-1-one [PDF]

open access: yesJournal of the Serbian Chemical Society
One of the most powerful methods for the rapid synthesis and formation of complex polycyclic molecules with biological interest involves the use of Diels–Alder (DA) reaction especially its intramolecular variant.
Temer Imane   +2 more
doaj   +1 more source

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