A microwave substitution structure for protonated nitrogen N2H+

摘要

Microwave observations of theJ= 0ndash;1 transitions of N2H+,15N2H+,and15N14ND+, N2D+,15N2D+, and15N14NH+have been used to determine a substitution structure for N2H+. The resultant structural parameters arers(NN) = 1.0947(4) Aring; andrs(NH) = 1.0320(1) Aring;, which agree beautifully with those from availableabinitiocalculations. The frequencies obtained for the15N species provide a basis for their future radioastronomical detection and identification.