Millimeter observations of organic molecules toward high-mass star formation region G34.26+0.15

To investigate the chemical origination of organic molecules CH 3 OH, CH 3 OCH 3 , C 2 H 5 OH, CH 3 OCH, CH 3 CN, C 2 H 3 CN and C 2 H 5 CN in the hot core associated with high-mass star formation region G34.26+0.15, Submillimeter Array observations were made with its 230 GHz receiver. The molecular gas distribution has shown that the oxygen- and nitrogen-containing molecules peak at different positions. Comparing the spatial distributions with rotational temperatures and fractional abundances of the observed molecules, we discuss the possible chemical origination of these organic molecules.