Infrared Spectra of Polystyrene Oxide

UV absorption spectra of polystyrene

Polystyrene (PSt) exhibits a new UV absorption band at around 290nm in comparison with ethylbenzene, which is attributed to associative interaction between pendant phenyl groups, similar absorption bands are also observed for polymers of styrene derivatives. The UV spectra suggest charge-transfer complex formation between the polymeric and monomeric donors with electron-acceptor tetracyanoethyl...

The infrared spectra of matrix isolated uranium oxide species

The infrared spectra of matrix isolated uranium oxides have been studied by several investigators [1-6].1 Although the spectra were similar, these workers differed in their interpretation and assignm.ent of the observed bands. In particular, AbramoWItz et a1. [1, 2]; and Leary et a1. [3]; assigned two absorption bands at 873 and 776 cml to UOz and UO while Carstens et al. [4], and Gabelnick et ...

New infrared spectra of the nitrous oxide trimer.

Infrared spectra of N(2)O trimers are studied using a tunable diode laser to probe a pulsed supersonic slit-jet expansion. A previous observation by Miller and Pedersen [J. Chem. Phys. 108, 436 (1998)] in the N(2)O nu(1)+nu(3) combination band region ( approximately 3480 cm(-1)) showed the trimer structure to be noncyclic, with three inequivalent N(2)O monomer units which could be thought of as...

Infrared Spectra of Tissues.

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 [...