Excimers are molecular associates which exist only in excited electronic states so that they are detectable only in eemission spectra,especially in fluorescence
We studied the reaction kinetics of dismutation for superoxide ion by copper (Ⅱ) complex of macrocycllc dioxotetramine ligand 12- ( 4’ - nitro )- benzyl-1,4,7
XPS and chemical trapping experments with H2, NH3, and CH3I as trapping agents were carried out for studying the adsorption of propylene over MoO3 or r-Bi2MoO6.