Abstract
The decarbonylation of [Re 2 (CO) 10 ] on ultrathin MgO(111) films (∼50 A) grown on a Mo(110) substrate was investigated with infrared reflection-absorption spectroscopy and temperature-programmed desorption/decomposition. When [Re 2 (CO) 10 ] was adsorbed at 320 K, it reacted with the MgO(111) surface, forming a rhenium subcarbonyl, [Re(CO) 4 {OMg}] 2 , where (OMg) represents oxygen on the MgO(111) surface. Upon heating to temperatures >400 K, [Re(CO) 4 {OMg}] 2 was decarbonylated, forming [Re(CO) 3 {OMg} 3 ]
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