Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Molecular shape and the energetics of chemisorption: From simple to
  complex energy landscapes   We enumerate all local minima of the energy landscape for model rigid
adsorbates characterized by three or four equivalent binding sites (e.g., thiol
groups) on a close-packed (111) surface of a face-centered-cubic crystal. We
show that the number of energy minima increases linearly with molecular size
with a rate of increase that depends on the degree of registry between the
molecule shape and the surface structure. The sparseness of energy minima and
the large variations in the center-of-mass positions of these minima vs
molecular size for molecules that are incommensurate with the surface suggests
a strong coupling in these molecules between surface mobility and shape or size
fluctuations resulting from molecular vibrations. We also find that the
variation in the binding energy with respect to molecular size decreases more
rapidly with molecular size for molecules with a higher degree of registry with
the surface. This indicates that surface adsorption should be better able to
distinguish molecules by size if the molecules are incommensurate with the
surface.

15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs