About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
JACS
Paper
Metallacyclobutane and cyclopropyl species on Cu(111) and Cu(110)
Abstract
Low-energy electron bombardment of cyclopropane submonolayers was used to prepare cyclopropyl and metallacyclobutane species on Cu(110) and Cu(111) surfaces. The thermal chemistry of both species was monitored over the 90-450 K range by taking high-resolution electron energy loss (HREELS) and temperature programmed desorption (TPD) measurements. Cyclization of the metallacyclobutane species, to eliminate cyclopropane, was found to occur at 205 K. The metallacyclobutane species was characterized by CH stretching losses at 2806 and 2839 cm-1 for Cu(110) and Cu(111), respectively. The cyclopropyl species was found to undergo ring opening to yield a propene desorption product at 290 K. The observed surface chemistry of both of these cyclic C3 species is compared with data from the organometallic, catalysis, and surface science literature.