Abstract
Laser-ablated chromium, molybdenum, and tungsten atoms undergo oxidative addition reactions with ammonia during condensation in excess argon. The subject molecules were trapped in solid argon and identified by isotopic shifts and DFT frequency calculations. The 1:1 metal−ammonia complexes increased on annealing and photoisomerized to H2N−MH and then to N≡MoH3 and N≡WH3, but N≡CrH3 is too high in energy to be formed here. These products also increased slightly on annealing, which indicates a spontaneous reaction between group 6 metal atoms and ammonia. The N≡MoH3 and N≡WH3 molecules contain fully developed triple bonds with effective bond orders of 2.91 and 2.92, computed using the B3LYP density functional, and terminal metal nitride bond lengths, in agreement with those measured for larger organometallic complexes.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call