Infrared spectra of deuterated polymethyl methacrylates

Infrared vibration spectra of hydrogenated, deuterated, and tritiated amorphous silicon

This article presents infrared absorption data of amorphous silicon alloys in which the hydrogen isotopes deuterium and tritium have been substituted for hydrogen. Silicon–deuterium and silicon– tritium vibration frequencies are related to silicon–hydrogen vibration frequencies by simple mass relationships. The silicon–deuterium wagging vibration is broadened and blueshifted due to strong coupl...

Low-temperature infrared spectra and hydrogen bonding in polycrystalline DL-serine and deuterated derivatives

The FT-IR spectra of polycrystalline DL-serine [a-amino-b-hydroxypropionic acid; HO–CH2–CH(NH3) –COO ] and isotopically substituted [ND/ODAlcohol (<10% and >90% D); CD2 (>98% D)] DL-serine were recorded in the range 4000–500 cm 1 in the temperature range 300–10 K, and fully assigned. The isotopic-doping/low-temperature methodology, which allows for decoupling of individual proton vibrational mo...

Infrared Spectra of Tissues.

Photoemission spectra of deuterated silicon clusters: experiment and theory

We compare experimentally measured and ab initio computed photoelectron spectra of negatively charged deuterated silicon clusters (SimD − n , 4 ≤ m ≤ 10, 0 ≤ n ≤ 2) produced in a plasma environment. Based on this comparison, we discuss the kinetics and thermodynamics of the cluster formation and the effect of deuterium on the geometrical and electronic structure of the clusters. PACS. 36.40.-c ...

Near-Infrared Spectra of Ultraluminous Infrared Galaxies.

Near-infrared spectra with a resolution of lambda&solm0;Deltalambda approximately 1100 in the rest-wavelength range of 1.8-2.2 µm have been obtained for a complete sample of 33 ultraluminous infrared galaxies (ULIRGs). Of the 33 objects observed, two show evidence of a central active galactic nucleus (AGN) through either a broad Paschen-alpha line or emission in the 1.963 µm fine structure of [...