Analysis of ten novel rhenium complexes by desorption chemical ionization mass spectrometry

The desorption chemical ionization (DCI) mass spectrometry of ten rhenium compounds is compared to the desorption electron impact (DEI) mass spectrometry of the same compounds. Using 10% ammonia in nitrogen as the reagent gas, the DCI mass spectrometric (MS) technique provided [M + H]⁺ ions for each rhenium compound. In most cases, the DEIMS method provided only fragment ions.