Quantitative structure determination of an NH x species adsorbed on Cu(110)

Abstract

Using scanned energy mode photoelectron diffraction we have recently investigated the local structure of NH 3 and NH x ( x = 1 or 2) on Cu(110). NH 3 was found to occupy the atop site on the closed-packed Cu rows in the first layer. The NH x species, discussed in more detail in the present paper, occupies the short bridge site on the outermost 〈110〉 rows, at a height of 1.40 ± 0.02 A ̊ above the surface, resulting in a CuN nearest neighbour distance of 1.89 Å.