Acta Phys. -Chim. Sin. ›› 1987, Vol. 3 ›› Issue (02): 192-196.doi: 10.3866/PKU.WHXB19870214
• ARTICLE •
In this paper, properties of molecular graphs with partly identical topological spectra has been discussed in detail. The concept of pseudo-reflection plane has been described and illustrated by a few examples. The molecular graph G which does not contain the plane of symmetry is said to have a pseudo-reflection plane σ_p if there exists a symmetry plane in a deleting graph G_a′. The G is partitioned into two parts G_(A1)(σ_p), G_(A2)(σ_p) by the plane σ_p. The conjugated species G_(A1)(σ_p)、 G_(A2)(σ_p) are isospectral or partly isospectral molecules if the construction of G_(A1)(σ_p)、G_(A2)(σ_p) are not identical.In this present article a straight chain containing three vertices has been studied. This graph stands for a general result result of the deletion of numerous partly isospectral molecules.
Chen Erting. PARTLY ISOSPECTRAL MOLECULES[J].Acta Phys. -Chim. Sin., 1987, 3(02): 192-196.
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