Charge Transfer (CT) complexes formed between dibenzo-24-crown-8 (DB24C8) as an electron donor with the σ-electron acceptor iodine (I2) in chloroform, dichloromethane, and 1,2-dichloroethane solutions have been studied by different spectroscopic techniques at room temperature. The spectral studies of the complexes were det...

The different properties of acceptor-doped (hard) and donor-doped (soft) lead zirconate titanate (PZT) ceramics are often attributed to different amounts of oxygen vacancies introduced by the dopant. Acceptor doping is believed to cause high oxygen vacancy concentrations, while donors are expected to strongly suppress their amount. In this study, La3+ donor-doped, Fe3+ acceptor-doped and La3+/F...

Prokaryotic adaptive immunity relies on the capture of fragments of invader DNA (protospacers) followed by their recombination at a dedicated acceptor DNA locus. This integrative mechanism, called adaptation, needs both Cas1 and Cas2 proteins. Here, we studied in vitro the binding of an Escherichia coli Cas1-Cas2 complex to various protospacer and acceptor DNA molecules. We show that, to form a...

This work presents a joint theoretical and experimental characterization of the structural and electronic properties of two tetrathiafulvalene (TTF)-based acceptor-donor-acceptor triads (BQTTF-BQ and BTCNQ-TTF-BTCNQ, where BQ is naphthoquinone and BTCNQ is benzotetracyano-p-quinodimethane) in their neutral and reduced states. The study is performed making use of electrochemical, electron parama...

Although donor-acceptor (0-A) recombination UHP emission in semiconductors is reasonably well un2O~ ~ T’l.2K derstoo&, the processes contributing to the photo0 ~ production of the 0°-A°generators have not been o 489nm adequately explored. The interplay among exciton and charge carrier roles results in different spatial and neutral-pair-separation distributions 9 10 which are manifested in the s...

Commonly, thermally activated delayed fluorescence (TADF) emitters present a twisted donor–acceptor structure. Here, electronic communication is mediated through-bond via π-conjugation between donor and acceptor groups. A second class of TADF are those where moieties through-space. In these through-space charge-transfer (TSCT) architectures, the groups disposed in pseudocofacial orientation lin...

A benzoquinone monolayer-functionalized electrode reveals electrochemically or chemically controlled wettability; the hydrophobicity of the hydroquinone-modified surface is enhanced by the presence of a donor-acceptor complex with N,N'-dimethyl-4,4'-bipyridinium as the pi-electron acceptor.

Two new donor-acceptor dyads with a particular electron-rich triarylamine (TAA) donor and the perchlorotriphenylmethyl radical acceptor (PCT) are probed for their propensity to equilibrate zwitterionic valence tautomers TAA+-PCT−. The UV/vis/NIR EPR spectroscopic profiles of oxidized reduced forms were recorded, but failed identify such isomers in neutral state. cations have an open-shell singl...

Improving p-type doping efficiency in Al-rich AlGaN alloys is a worldwide problem for the realization of AlGaN-based deep ultraviolet optoelectronic devices. In order to solve this problem, we calculate Mg acceptor activation energy and investigate its relationship with Mg local structure in nanoscale (AlN)5/(GaN)1 superlattice (SL), a substitution for Al(0.83)Ga(0.17)N disorder alloy, using fi...

We used luminescent CdSe-ZnS core-shell quantum dots (QDs) as energy donors in fluorescent resonance energy transfer (FRET) assays. Engineered maltose binding protein (MBP) appended with an oligohistidine tail and labeled with an acceptor dye (Cy3) was immobilized on the nanocrystals via a noncovalent self-assembly scheme. This configuration allowed accurate control of the donor-acceptor separa...