نتایج جستجو برای: ct acceptors

تعداد نتایج: 140044  

Journal: :Crystal Growth & Design 2022

We report the first cocrystals of TCNQ and TCNB based on orthocetamol, a regioisomer paracetamol. Through simple solution growth process, were produced containing orthocetamol as electron donors with coformers either 7,7,8,8-tetracyanoquinodimethane (TCNQ) or 1,2,4,5-tetracyanobenzene (TCNB), acceptors. Because submicron crystalline domains, 3D diffraction was employed for structure in both sys...

2011
Asad Raza Muhammad Zia-ul-Haq

Two simple, fast, and accurate spectrophotometric methods for the determination of alendronate sodium are described. The methods are based on charge-transfer complex formation of the drug with two π-electron acceptors 7,7,7,8-tetracyanoquinodimethane (TCNQ) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in acetonitrile and methanol medium. The methods are followed spectrophotometrically by...

Journal: :Journal of Physical Chemistry C 2021

We have characterized the size, intensity, density, and distribution of charge-transfer (CT) excitons as a function acceptor–donor architecture prototypical organic interfaces. This characterization was done by computational analysis 17 models varying numbers, positions, orientations donor acceptor molecules. The models’ building blocks were phenyl-C61-butyric acid methyl ester (PCBM) fullerene...

2017
Marc K Etherington Flavio Franchello Jamie Gibson Thomas Northey Jose Santos Jonathan S Ward Heather F Higginbotham Przemyslaw Data Aleksandra Kurowska Paloma Lays Dos Santos David R Graves Andrei S Batsanov Fernando B Dias Martin R Bryce Thomas J Penfold Andrew P Monkman

Regio- and conformational isomerization are fundamental in chemistry, with profound effects upon physical properties, however their role in excited state properties is less developed. Here two regioisomers of bis(10H-phenothiazin-10-yl)dibenzo[b,d]thiophene-S,S-dioxide, a donor-acceptor-donor (D-A-D) thermally-activated delayed fluorescence (TADF) emitter, are studied. 2,8-bis(10H-phenothiazin-...

Journal: :Acta pharmaceutica 2016
Moamen S Refat Hosam A Saad Abdel Majid A Adam Mohamed A Al-Omar Ahmed M Naglah

The topic of charge-transfer (CT) complexation of vital drugs has attracted considerable attention in recent years owing to their significant physical and chemical properties. In this study, CT complexes derived from the reaction of the anti-hyperuricemic drug allopurinol (Allop) with organic p-acceptors [(picric acid (PA), dichlorodicyanobenzoquinone (DDQ) and chloranil (CHL)] were prepared, i...

Journal: :Materials 2023

Ternary organic solar cells (OSCs) have attracted intensive studies due to their promising potential for attaining high-performing photovoltaics, whereas there has been an opening challenge in minimizing the open circuit voltage (Voc) loss while retaining optimal carrier extraction multiple mixture absorbers. Here, we systemically investigate a ternary absorber comprised of two acceptors and do...

Journal: :RAIRO. Informatique théorique 1984

Journal: :Journal of Computer and System Sciences 1972

2017
Ryan J Bickley Harran Mkocha Beatriz Munoz Sheila West

BACKGROUND Trachomatous trichiasis (TT), inturned eyelashes from repeated infection with Chlamydia trachomatis, is the leading infectious cause of blindness in the world. Though surgery will correct entropion caused by trachoma, uptake of TT surgery remains low. In this case-control study, we identify barriers that prevent TT patients from receiving sight-saving surgery. METHODOLOGY/PRINCIPAL...

Journal: :Journal of Applied Physics 2015

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