Fig. 2
From: Identifying surface reaction intermediates with photoemission tomography
Valence band of DBBA on Cu(110) before and after annealing at 250 °C. a Energy distribution curves (EDCs) of as-deposited DBBA measured along [001] (blue curve) and [\(\bar 110\)] (red curve) directions of Cu(110). b EDCs after annealing of DBBA at 250 °C measured along [001] direction of Cu(110) (blue curve) and 25° away from [\(\bar 110\)] direction (red curve). For the EDCs, the photoelectron intensity was integrated over the polar angle range of 0° to +85°. c DFT calculations of density of states (DOS) of C28H14, C28H12 and C28H8 on Cu(110). The orange lines show the total DOS, while the black and grey lines display the DOS projected onto the molecule and the π-states of the molecule, respectively. The dotted lines mark energies corresponding to experimental and theoretical k-maps in Figs. 3 and 4
