Author/Authors :
Su، نويسنده , , G.L. and Ning، نويسنده , , C.G. and Deng، نويسنده , , J.K. and Ren، نويسنده , , X.G. and Zhang، نويسنده , , S.F. and Huang، نويسنده , , Y.R. and Yang، نويسنده , , T.C. and Wang، نويسنده , , F.، نويسنده ,
Abstract :
Combining a theoretical and experimental investigation of electron momentum spectroscopy (EMS) of the N 1s hole (2σ−1 and 3σ−1) orbitals in NNO (X 1Σ+), we demonstrate a direct and pronounced manifestation of a chemical shift of the molecule. Evidence from both binding-energy spectra and the corresponding orbital momentum distributions are presented for the chemical shift of 3.4 eV in ionization energy and differences of wave functions of NNO between the terminal N (3σ−1 NT) and center N (2σ−1 NC).