نتایج جستجو برای: electron donor

تعداد نتایج: 369427  

Journal: :physical chemistry research 2016
reza behjatmanesh-ardakani

dft-gga method of perdew-burke-ernzerhof (pbe) is used with aug-cc-pvtz, 6-311++g**, and def2-tzvp large basis sets to study the hydrogen bond interactions between oxygen lone pair as a donor electron with hydrogen atom connected to the aniline’s nitrogen as an electron acceptor (h2o···hnh-ph), and nitrogen lone pair with hydrogen of water molecule (ph-h2n···hoh), both in the gas phase. in some...

2002
RAMESH C. AHUJA

Photoinduced electron transfer from an excited donor molecule (oxacyanine) to an acceptor molecule (viologen) located at the same interface in monolayer assemblies has been studied by measuring steady state fluorescence quenching and the excited state decay of the donor molecule. Donor and acceptor molecules are incorporated in matrix monolayers of arachidic acid and methyl arachidate, with a m...

Journal: :international journal of nano dimension 0
h. khajeh salehani young researchers club, damavand branch, islamic azad university, damavand, iran. kh. shakouri young researchers club, damavand branch, islamic azad university, damavand, iran. m. esmaeilzadeh department of physics, iran university of science and technology, tehran, iran. m. h. majlesara department of physics, tarbiat moallem university, tehran, iran.

in this paper, the electronic eigenstates and energy spectra of single and two-interacting electrons confined in a concentric double quantum rings with a perpendicular magnetic field in the presence of         on-center donor and acceptor impurities are calculated using the exact diagonalization method. for a single electron case, the binding energy of on-center donor and acceptor impurities ar...

1999
Haim Levanon

We report the results of time-resolved electron paramagnetic resonance (TREPR) studies of photoinduced charge separation in different supramolecular donor-acceptor systems dissolved in oriented liquid crystals (LC). Three systems are discussed: 1) covalently linked donor-spacer-acceptor systems (DsA); 2) donor-acceptor systems linked by hydrogen bonds; and 3) a zwitterionic system in which the ...

Journal: :Chemical communications 2014
Somen Mondal Manjunath Chatti Arabinda Mallick Pradipta Purkayastha

Dopamine functionalized carbon nanoparticles (CNPs) that can act as efficient photoinduced electron donor-acceptor systems depending on the pH of the medium have been synthesized. In acidic media, dopamine on CNPs exists as hydroquinone and serves as an electron donor while under alkaline conditions the corresponding quinone form of dopamine serves as a strong electron acceptor. Application of ...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
E I P Volcke M C M van Loosdrecht P A Vanrolleghem

The combined SHARON-Anammox process is a promising technique for nitrogen removal from wastewater streams with high ammonium concentrations. It is typically applied to sludge digestion reject water, in order to relieve the activated sludge tanks, to which this stream is typically recycled. This contribution assesses the impact of the applied control strategy in the SHARON-reactor, both on the e...

Journal: :Journal of the Japan Society of Colour Material 1975

Journal: :Bulletin of the Chemical Society of Japan 1982

H. Khajeh Salehani, Kh. Shakouri M. Esmaeilzadeh M. H. Majlesara

In this paper, the electronic eigenstates and energy spectra of single and two-interacting electrons confined in a concentric double quantum rings with a perpendicular magnetic field in the presence of         on-center donor and acceptor impurities are calculated using the exact diagonalization method. For a single electron case, the binding energy of on-center donor and acceptor impurities ar...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1967

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