The reaction of methylene radicals in their 3 B1 electronic ground state with molecular NO was studied. Pure CH2(X 3 B1 ) radicals were prodced by UV photolysis of ketene at 351 nm.The products were measured by Time-Resolved Fourier Transform Infrard (TR-FTIR) spectrometer. CO.OH .NH2 and HOCN or its isomer HNCO were found as primary prodcts and several possible channels of this reaction were suggested.
The free radical of CICOCO has been investigated theoretically and experimentallyGeometry、vibrational frequencies and dissociative energy barrier of the ground state of CICOCOwere obtained by ab initio calculations. By 351 nm photolysis of (CICO)2, CICOCO’s infraredendssion at 1844 cm-1 was recorded by TRFTIR spectrometer.
