Simulation of STM images from commercially available software

yThe simulation of scanning tunneling microscopy images is performed ab ini tio with two readily available programs (Gaussian94 and a commercial spread sheet). The model requires only a series of matrix multiplications and lend s itself to widespread use. The versatility, reliability, and wealth of dat a one can obtain from the approach are illustrated by three examples: (i) b enzene adsorbed onto the Rh(lll) surface, (ii) naphthalene on the Pt(lll) s urface, and (iii) trans-2-butene on the Si(100) surface.