Adsorbate thermodynamics as a determinant of reaction mechanism: Pentamethylene sulfide on Mo(110)

Journal Article · · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00090a003· OSTI ID:6950796

Wiegand, B C; Friend, C M; Roberts, J T ^[1]

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1. Harvard Univ., Cambridge, MA (USA)

The reactions of the totally unstrained, six-membered cyclic sulfide pentamethylene sulfide on Mo(110) have been investigated by using temperature-programmed reaction spectroscopy and X-ray photoelectron spectroscopy in an effort to identify the roles of ring size and strain in dictating reaction selectivity. Four gases products are detected in the temperature-programmed reaction of pentamethylene sulfide: dihydrogen at 380 and 590 K, pentane at 350 K, pentene at 345 K, and pentamethylene sulfide at 190 and 280 K. The kinetics for hydrocarbon production from pentamethylene sulfide are qualitatively different than for the four- and five-membered cyclic sulfides, trimethylene sulfide and tetrahydrothiophene.

• DOE Contract Number: FG02-84ER13289
• OSTI ID: 6950796
• Journal Information: Langmuir; (USA), Journal Name: Langmuir; (USA) Vol. 5:6; ISSN LANGD; ISSN 0743-7463
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
CHALCOGENIDES
DATA
DATA ANALYSIS
ELECTRON SPECTROSCOPY
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
MOLYBDENUM
NUMERICAL DATA
PHOTOELECTRON SPECTROSCOPY
REACTIVITY
SORPTION
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES
THERMODYNAMICS
TRANSITION ELEMENTS