Formation of hydrogen bonded aggregates of aminomethylidyne on Pt(111)

Autor:	Hugo Celio, D. Jentz, M. Belyansky, P. Mills, Michael Trenary
Rok vydání:	1996
Předmět:	X-ray spectroscopy Hydrogen Chemistry Hydrogen bond Analytical chemistry General Physics and Astronomy Infrared spectroscopy chemistry.chemical_element Fourier transform spectroscopy Crystallography X-ray photoelectron spectroscopy Molecule Physical and Theoretical Chemistry Platinum
Zdroj:	The Journal of Chemical Physics. 105:3250-3257
ISSN:	1089-7690 0021-9606
Popis:	Reflection absorption infrared spectroscopy (RAIRS) and x‐ray photoelectron spectroscopy (XPS) were used to study the aggregation of aminomethylidyne (CNH2) on Pt(111). The molecule exists in three distinct environments: an isolated molecule at low coverages, large aggregates at saturation coverage, and small aggregates in coexistence with both large aggregates and isolated molecules at intermediate coverages. The molecules in each environment have distinctly different ir spectra. Correlation of the ir spectra with a particular environment was supported by Xe coadsorption experiments. The XPS results suggest that the interactions between CN and CNH2 are not responsible for the effects observed in the ir spectra, rather they are due to CNH2–CNH2 interactions. The ir spectra show the characteristic features of hydrogen bonding, which is proposed to be the origin of the attractive adsorbate–adsorbate interaction. Interpretation of the ir spectra was supported through normal mode calculations of both the CNH2...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a2d00c8713d31929015a995dea549cc2 https://doi.org/10.1063/1.471840 Zobrazit plný text záznamu