Cycloaddition reaction of furan with Si(100)-2×1
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چکیده
Articles you may be interested in Adsorption mechanisms of isoxazole and oxazole on Si(100)-2 × 1 surface: Si–N dative bond addition vs. [4+2] cycloaddition J. The adsorption configuration of furan on Si͑100͒-2ϫ1 at 125 K has been investigated using x-ray photoelectron spectroscopy ͑XPS͒, ultraviolet photoelectron spectroscopy ͑UPS͒, high resolution electron energy loss spectroscopy ͑HREELS͒, and semiempirical molecular orbital ͑MO͒ calculation. A chemisorbed furan species is identified, which does not desorb until 300 K. Our results clearly demonstrate the covalent attachment of furan onto Si͑100͒, possibly through a ͓4ϩ2͔ cycloaddition reaction. Based on the frontier molecular orbital ͑FMO͒ theory and work function measurements, an electron donation mechanism from furan to Si͑100͒-2ϫ1 is proposed to be involved in the cycloaddition reaction.
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