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Experimental investigations of the non-bonding interactions of the boron atom, in its ground and resonance-excited electronic states, with the hydrogen molecule and other species have been carried in conjunction with collaborative theoretical work by Millard Alexander, at the University of Maryland Fluorescence excitation and depletion spectra of weakly bound complexes involving the boron atom have been observed and used to deduce the relevant interaction potentials. The aluminum-neon interaction has also been probed in this way. Chemical reaction within the electronically excited boron-hydrogen complex has been probed through observation of the chemiluminescence of the BH product A first extension to the study of larger complexes has been made with the observation of the BAr2 complex.