Accession Number : ADA265531


Title :   Infrared Spectroscopy of Hydrogen and Water on Diamond (100)


Descriptive Note : Technical rept.


Corporate Author : RICE UNIV HOUSTON TX DEPT OF CHEMISTRY


Personal Author(s) : Struck, L M ; D'Evelyn, M P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265531.pdf


Report Date : May 1993


Pagination or Media Count : 11


Abstract : The absorption of deuterium and water on diamond (100) has been investigated by infrared multiple-internal-reflection spectroscopy using a natural type IIa diamond internal reflection element. Evidence was seen for both monohydride surface species (CD deformation mode at 901/cm) and dihydride species (CD2 deformation mode at 1125/cm). Following exposure to water at elevated temperature, infrared modes were detected at 1280, 1200, 1125, 1080, and 720/cm, and are assigned to ether (C-O-C), hydroxyl (-OH), and carbonyl (C=O) modes. The substantial observed reactivity of diamond with water indicates a potentially important role for surface hydroxyl and oxide species in diamond growth.


Descriptors :   *INFRARED SPECTROSCOPY , *WATER , *DIAMONDS , *HYDROGEN , ADSORPTION , SINGLE CRYSTALS , SURFACES , INTERNAL , ETHERS , CARBONYL COMPOUNDS , HYDROXYL RADICALS , DEUTERIUM , CHEMICAL REACTIONS , OXIDES , REFLECTION , VAPOR DEPOSITION , DEFORMATION , FILMS , REACTIVITIES


Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Crystallography
      Atomic and Molecular Physics and Spectroscopy


Distribution Statement : APPROVED FOR PUBLIC RELEASE