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Correlation between N 1s XPS binding energy and bond distance in metal amido, imido, and nitrido complexes
Jin-Bao Wu1, Yi-Feng Lin, Jelin Wang
1Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30050, R.O.C.
Inorganic Chemistry
|July 23, 2003
Abstract:
Synchrotron-based X-ray photoelectron spectroscopy is used to measure N 1s binding energies of several metal amido, imido, and nitrido complexes of group 5 and 6 metals. The N 1s binding energy decreases as the formal M-N bond order increases. A simple correlation between the contraction of the M-N bond and the lowering of binding energy is also observed. This correlation supports a notion that the bonding character of a linear metal-imido linkage resembles that of a metal-nitrido linkage closely.