Resumen

HAMADANIAN, M.  y  REZA ASHRAFI, A.. On the symmetry of bis benzene cromium(0) with D_6d point group. An. Asoc. Quím. Argent. [online]. 2006, vol.94, n.4-6, pp.47-53. ISSN 0365-0375.

An Euclidean graph associated with a molecule is defined by a weighted graph with adjacency matrix M = [d_ij], where for i≠ j, d_ij is the Euclidean distance between the nuclei i and j. In this matrix dii can be taken as zero if all the nuclei are equivalent. Otherwise, one may introduce different weights for distinct nuclei.In this paper, the automorphism group of the Bis Benzene Chromium(0) with D_6d point group symmetry is computed. We also find an euclidean graph with an odd number of automorphisms. This solved a problem posed by the author in an earlier paper.