title: Hydrogen adsorption on the indium-rich indium phosphide (001) surface: a novel way to produce bridging In-H-In bonds.
abstract: The indium phosphide (001) surface provides a unique chemical environment for studying the reactivity of hydrogen toward the electron-deficient group IIIA element, indium. Hydrogen adsorption on the In-rich delta(2 x 4) reconstruction produced a neutral, covalently bound bridging indium hydride. Using vibrational spectroscopy and ab initio cluster calculations, two types of bridging hydrides were identified, a (mu-H)In(2) and a (mu-H)(2)In(3) "butterfly-like" structure. These structures were formed owing to the large thermodynamic driving force for adsorption of H atoms on solid-state indium dimers.
authors.affiliation: Chemical Engineering Department, University of California, Los Angeles, CA 90095, USA.
authors.forename: K
authors.initials: K
authors.lastname: Raghavachari
authors.forename: Q
authors.initials: Q
authors.lastname: Fu
authors.forename: G
authors.initials: G
authors.lastname: Chen
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: C H
authors.initials: CH
authors.lastname: Li
authors.forename: D C
authors.initials: DC
authors.lastname: Law
authors.forename: R F
authors.initials: RF
authors.lastname: Hicks