Abstract
Reactions of metastable alkaline earth atoms with normal and branched propyl halides were studied in a beam-gas arrangement. Chemiluminescence spectra of alkaline earth monohalides were observed for calcium and strontium reactions. Some differences in the CaX ( B 2 Σ + / A 2 Π ) branching ratio were found with isomeric variation of the targets. Total collision cross-sections for Mg ∗ and Ca ∗ reactions are independent of the isomeric substitution; for strontium the values for isopropyl iodide are 50% higher than those for normal propyl iodide target. Differences in chemiluminescence cross-sections are found for reactions of calcium with propyl iodides and propyl chlorides.
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