UV/Vis absorption spectra of ClOOCl isolated in neon matrices were measured in the wavelength range 220-400 nm. The purity of the trapped samples was checked by infrared and UV/Vis matrix spectroscopy as well as low-temperature Raman spectroscopy. At wavelengths below 290 nm, the results agree with the UV spectrum recently published by Pope et al. [J. Phys. Chem. A, 2007, 111, 4322-4332]. Howev...

Structural and UV/Visible optical properties can be useful to describe a material for the CIGS solar cell active layer, therefore, this work demonstrates the properties like surface morphology, X-ray Photoelectron Spectroscopy (XPS) bonding energy (EB) core level spectra, UV/Visible absorption spectra, refractive index (n), optical energy band (Eg), reflection spectra for the Cu25 (In16Ga9) Se4...

Single-walled carbon nanotubes (SWNTs) are 1 dimensional (1D) tubular material with sp bonded graphene wall. Their unique geometry gives rise to sharp divergences in electronic density of states and consequently leads to characteristic discrete energy subbands. Since these inter-subband energy corresponds to near infrared (NIR) to visible (vis) range, many innovative optical application of SWNT...

HST UV observations of V795 Her reveal a strong 2.6-h orbital variation in the prominent UV lines, in contrast to earlier (IUE) evidence of a 4.8-h period. Only the Civ line contains a strong blue-shifted, wind formed absorption component. Several lines exhibit a 'narrow' absorption feature near rest velocity which may originate in the disk, and a blue-shifted emission feature which accounts fo...

Department of Chemistry, Wuhan University whu.edu.cn; Fax: +86 27 6875 6757 Institute of Chemistry, The Chinese Academ Fujian Institute of Research on the Struct Sciences, Fuzhou 350002, China † Electronic supplementary information dendrimers in the previous study and th compounds, NLO measurements inclu preparation of thin lms, measurement c mechanics simulation including calculat TOF mass sp...

The triplet excited state behavior of c84 has been probed by the triplet-triplet energy transfer method using pulse radiolytically generated biphenyl triplets in benzene. The triplet excited state has a weak absorption in the UV (difference absorption maxima at 3 10 and 345 nm) but no significant absorption in the visible. The rate constants for energy transfer from 3BP* and 3C60* are 4 x lo9 a...

UV-vis optical absorption spectra of the antitrypanocidal drug benznidazole solvated in water were measured for various concentrations. The spectra show a prominent peak around 3.80 eV, while deconvolution of the UV-vis optical absorption spectra revealed six bands centered at 3.60, 3.83, 4.15, 4.99, 5.60, and 5.76 eV. Benznidazole electronic transitions were obtained after density functional t...

Low doses of UV-B light (280 to 315 nm) elicit photomorphogenic responses in plants that modify biochemical composition, photosynthetic competence, morphogenesis, and defense. UV RESISTANCE LOCUS8 (UVR8) mediates photomorphogenic responses to UV-B by regulating transcription of a set of target genes. UVR8 differs from other known photoreceptors in that it uses specific Trp amino acids instead o...

Prebiotic chemistry presumably took place before formation of an oxygen-rich atmosphere and thus under conditions of intense short wavelength UV irradiation. Therefore, the UV photochemical stability of the molecular building blocks of life may have been an important selective factor in determining the eventual chemical makeup of critical biomolecules. To investigate the role of UV irradiation ...

High-level ab initio molecular orbital calculations were performed to predict chemical reaction pathways and UV absorption maxima. It is indicated that the search for transition states in the reaction of disilenes with water by ab initio MO calculations in combination with the frontier MO theory provides a good perspective of the reaction mechanisms. UV absorption maxima of diaminosilylene dime...