20762-54-3Relevant articles and documents
Schubert et al.
, p. 951 (1970)
Infrared Multiphoton Decomposition of Highly Excited tert-Butyl-d9 Bromide
Toselli, B. M.,McRae, Glenn A.,Ivanco, M.,McAlpine, Robert D.
, p. 4912 - 4917 (1992)
The infrared multiphoton decomposition (IR MPD) of tert-butyl-d9 bromide as a function of pressure and fluence is reported.The major decomposition route was molecular elimination of DBr in accord with earlier pyrolysis studies.Evidence for a second channel comprising Br and tert-butyl radicals was found at high fluence or high pressure.The pressure dependence of this second channel suggests that through energy pooling collisions the molecules can reach an otherwise inaccessible channel.The effect of added gases (O2, N2, He, Ar, DBr, and 2-methylpropene-d8) on the MPD is presented.This study is a further indication of the utility of a new method of analysis of MPD experiments.
Characterization of the non-uniform reaction in chemically amplified calix[4]resorcinarene molecular resist thin films
Prabhu, Vivek M.,Kang, Shuhui,Kline, R. Joseph,Delongchamp, Dean M.,Fischer, Daniel A.,Wu, Wen-Li,Satija, Sushil K.,Bonnesen, Peter V.,Sha, Jing,Ober, Christopher K.
experimental part, p. 1065 - 1073 (2011/12/16)
The ccc stereoisomer-purified tert-butoxycarbonyloxy-protected calix[4]resorcinarene molecular resists blended with photoacid generator exhibit a non-uniform photoacid-catalyzed reaction in thin films. The surface displays a reduced reaction extent, compared with the bulk, with average surface-layer thickness 7.0±1.8nm determined by neutron reflectivity with deuterium-labelled tert-butoxycarbonyloxy groups. Ambient impurities (amines and organic bases) are known to quench surface reactions and contribute, but grazing-incidence X-ray diffraction shows an additional effect that the protected molecular resists are preferentially oriented at the surface, whereas the bulk of the film displays diffuse scattering representative of amorphous packing. The surface deprotection reaction and presence of photoacid were quantified by near-edge X-ray absorption fine-structure measurements.
