Author/Authors :
Leigh، نويسنده , , D.F. and Owen، نويسنده , , J.H.G. and Lee، نويسنده , , S.M. and Porfyrakis، نويسنده , , K. and Ardavan، نويسنده , , Stuart A. and Dennis، نويسنده , , T.J.S. and Pettifor، نويسنده , , D.G. and Briggs، نويسنده , , G.A.D.، نويسنده ,
Abstract :
Two different structural isomers of Nd@C82 have been isolated using two-stage high-performance liquid chromatography. Their molecular orbital structures have been studied by a combination of scanning tunneling microscopy (STM) and density functional theory (DFT). Matching filled and empty-states STM images to DFT calculations allowed us to distinguish directly between the two isomers on the surface.