lone pair versus lone pair repulsion > lone pair versus bonding pair repulsion > bonding pair versusbonding pair repulsion Molecular Geometry Example There are two electron pairs around the central atom in a molecule with linear molecular geometry, 2 bonding electron pairs and 0 lone pairs. The id...
When an organic semiconductor (OS) absorbs light, electrons can be excited from the valence to the conduction band forming Coulombically bound electron-hole pairs. These excitations were described by Frenkel as energetic quasiparticles, which he named excitons1,2. Frenkel excitons as we now call th...
Two different crystal forms were grown in the dark at 20°C by vapor diffusion using the hanging-drop geometry. Protein and reservoir solutions (1 μl each) were mixed; the latter contained 100 mM Na+-HEPES buffer at pH 7.3, 1.5–1.8 M ammonium sulfate, and 1–8% PEG 8000. Plate-sha...
To further understand the molecular recognition behavior between CDHis and CTC, the optimized binding geometry was theoretically calculated and independent gradient model (IGM) analysis was conducted. CDHis is electron-rich, especially at its rim with His moiety, and CTC is electron-deficient with ...
(B) Orientation of the B800 pigments relative to their crystallographic geometry (PDB: 1NKZ) about the transition-dipole, NB-ND axis (inset) (Ogren et al., 2018) for LH2 in the flat membrane (black) versus the chromatophore (red). A statistical shift in the B800 orientation angles of ...
Based on the Mg 0.05Zn 0.95O nanowall networks, planar geometry photoconductive type metal–semiconductor–metal photodetector was fabricated. At 5 V bias, the peak responsivity of 24.65 A/W was achieved at 352 nm, corresponding to an external quantum efficiency of 8490%. Such high external ...
Transmission electron microscopy (TEM) character... KK Adepalli,M Kelsch,R Merkle,... - 《Advanced Functional Materials》 被引量: 23发表: 2013年 Effects of bonding type and interface geometry on coherent transport through the single-molecule magnet Mn12 of bonding type, molecular orientation, ...
The results of the calculations for salt 1 based on the crystal structure geometry, neglecting electron–electron correlations, are summarized in Figure 7 and Figure 8 and Table 2. Figure 7. (a) Transfer integrals (TI) network in salt 1 for single conductive organic ET layer in the ...
Spectra of high-symmetry molecules contain fine and superfine level cluster structure related to J-tunneling between hills and valleys on rovibronic energy surfaces (RES). Such graphic visualizations help disentangle multi-level dynamics, selection rules
Electron-donatingEnergy levelMolecular geometryThree novel regular acceptor-donorl-acceptor-donor2(A-D1-A-D2) terpolymers were prepared via em-bedding a second donor(D2) unit into the traditional D-A backbone to manipulate the energy levels and moleculargeometry with no complex synthesis or ...