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7553164 
Journal Article 
The graph of atomic orbitals and its basic properties. 2. Zagreb indices 
Gutman, I; Furtula, B; Toropov, AA; Toropova, AP 
2005 
1 
Match (Mülheim an der Ruhr, Germany)
ISSN: 0340-6253 
53 
1 
225-230 
WOS:000229160200016 
Relations are established between the first and second Zagreb index (M-1, and M-2) of the graph of atomic orbitals (G*), and of the ordinary hydrogen-depleted (G(C)) and hydrogen-filled (G(H)) molecular graphs of saturated hydrocarbons. It is shown that M-1(G*) = 12 M-1 (G(C)) + 9 M-1 (G(H)) + 96 (c - 1) and M-2 (G*) = 36 M-2 (G(C)) + 15 M-2(G(H)) + 54 M-1(G(C)) + 96 (c - 1), where c is the number of (independent) cycles of the underlying molecule.