Results 81 to 90 of about 82,167 (149)

Crystal design using multipolar electrostatic interactions: A concept study for organic electronics

open access: yesBeilstein Journal of Organic Chemistry, 2013
Using a simple synthetic protocol, heterohexacene analogues with a quadrupolar distribution of partial charges are readily available. In contrast to most other acenes, these compounds crystallize with a slipped-stack, brickwork-like packing which is ...
Peer Kirsch   +2 more
doaj   +1 more source

Development of Novel Fluorine-18 Labeled PET Radioligands for Monoamine Oxidase B (MAO-B) [PDF]

open access: yes, 2013
Monoamine oxidases (MAO-A and MAO-B) are important enzymes regulating the levels of monoaminergic neurotransmitters. Selective and irreversible MAO-B inhibitors such as L-deprenyl and rasagiline are clinically used for the treatment of psychiatric and ...
Nag, Sangram
core   +1 more source

Further Insight into Extractable (Organo)fluorine Mass Balance Analysis of Tap Water from Shanghai, China. [PDF]

open access: yesEnviron Sci Technol, 2023
Jiao E   +9 more
europepmc   +1 more source

The preferred conformation of erythro- and threo-1,2-difluorocyclododecanes

open access: yesBeilstein Journal of Organic Chemistry, 2012
Cyclododecane adopts a square-like structure with corner and edge CH2 groups. In this study erythro- and threo-1,2-difluorocyclododecanes were prepared to explore whether the two vicinal C–F bonds, with different relative configurations, preferably ...
Yi Wang   +4 more
doaj   +1 more source

Chemistry of some model compounds related to fluorinated polymers [PDF]

open access: yes, 1993
The work described in this thesis is concerned with three areas which are the generation of stable carbocations from saturated model compounds related to poly- vinylidenefluoride, the development of synthetic routes to fluoro-organo-phosphazenes with ...
Odello, Paolo
core  

The Influence of the Precursor Type and of the Substrate on the SPD Deposited TiO2 Photocatalytic Thin Films

open access: yesAnnals of West University of Timisoara: Physics, 2018
Photocatalytic degradation of organic pollutants from wastewater using titanium dioxide is recognized as an efficient process. To be feasible, this process needs to be solar- or visible light -activated, but, due to its wide band gap energy, titanium ...
Tismanar Ioana   +3 more
doaj   +1 more source

Determinação de coeficiente de difusão de esteres e reações de transesterificação catalisadas por enzimas imobilizadas em organo-gel [PDF]

open access: yes, 1994
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Neste trabalho, foi estudado o grau de impedimento imposto pelas barreiras difusionais de ésteres quando estes passam do meio reacional para o gel e
João, Jair Juarez
core  

Synthesis of enones, pyrazolines and pyrrolines with gem-difluoroalkyl side chains

open access: yesBeilstein Journal of Organic Chemistry, 2013
Starting from easily accessible gem-difluoropropargylic derivatives, a DBU-mediated isomerisation affords enones in fair yields with a gem-difluoroalkyl chain.
Assaad Nasr El Dine   +8 more
doaj   +1 more source

Electrophilic fluorinatíon of ethers and deactivated benzene derivatives [PDF]

open access: yes, 2005
Chapter 1 - Chapter 1 provides a literature review of the relevant topics for this thesis in organofluorine chemistry: effect of fluorine as a substituent on the molecule, synthesis of C-F bond from C-H bond using electrophilic reagents with discussions ...
Trmčić, Jelena
core  

Misconceptions on fluoronium ions and hypervalent fluorine cations

open access: yes, 2017
In a recent publication (Science, 2013, 340, 57), indirect experimental evidence was presented for the transient generation in solution of a fluorine atom symmetrically bonded to two carbon atoms.
Christe, Karl O.   +10 more
core   +1 more source

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