Charge-Transfer Transitions Associated with Tricyanovinyl Aromatics

One-Center Charge Transfer Transitions in Manganites

In frames of a rather conventional quantum-chemical approach, which combines the crystal field and the ligand field models we have addressed different charge transfer (CT) states and O2p −Mn3d CT transitions in MnO 6 octahedra. The many-electron dipole transition matrix elements were calculated using the Racah algebra for the cubic point group. Simple ”local” approximation allowed to calculate ...

Flavin Charge Transfer Transitions Assist DNA Photolyase Electron Transfer.

This contribution describes molecular dynamics, semi-empirical and ab-initio studies of the primary photo-induced electron transfer reaction in DNA photolyase. DNA photolyases are FADH(-)-containing proteins that repair UV-damaged DNA by photo-induced electron transfer. A DNA photolyase recognizes and binds to cyclobutatne pyrimidine dimer lesions of DNA. The protein repairs a bound lesion by t...

Charge transfer transitions in multiferroic BiFeO3 and related ferrite insulators

Optical transitions in non-stoichiometric LaMnO3 identifying the charge-transfer transitions

Using the Mott–Littleton approach we examine the energies of a number of fundamental optical transitions, as well as those involving self-trapped holes of Mn and O in LaMnO3 lattice. The reasonable agreement with the experiment of our predicted energies, linewidths and oscillator strengths leads us to plausible assignments of the optical bands observed. We deduce that the optical band near 5 eV...

Voltage and frequency dependence of prestin-associated charge transfer.

Membrane protein prestin is a critical component of the motor complex that generates forces and dimensional changes in cells in response to changes in the cell membrane potential. In its native cochlear outer hair cell, prestin is crucial to the amplification and frequency selectivity of the mammalian ear up to frequencies of tens of kHz. Other cells transfected with prestin acquire voltage-dep...