The preparation of palladium–olefin complexes from palladium vapour

The reactions of palladium atoms with olefins have been studied by low-temperature i.r. spectroscopy and the most stable compounds observed, bis(cyclo-octa-1,5-diene)palladium and tris(bicyclo[2.2.1]heptene)-palladium have been prepared from palladium atoms on a gram scale.