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Keywords = Balaban’s mean square distance index

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17 pages, 307 KiB  
Article
Superaugmented Pendentic Indices: Novel Topological Descriptors for QSAR/QSPR
by Harish DUREJA, Kinkar C. DAS and Anil Kumar MADAN
Sci. Pharm. 2009, 77(3), 521-538; https://doi.org/10.3797/scipharm.0903-07 - 26 May 2009
Cited by 4 | Viewed by 1628
Abstract
Four pendenticity based topological descriptors termed as superaugmented pendentic indices have been conceptualized in the present study. An in-house computer program was utilized to compute index values of all the possible structures (with at least one pendent vertex) containing four, five and six [...] Read more.
Four pendenticity based topological descriptors termed as superaugmented pendentic indices have been conceptualized in the present study. An in-house computer program was utilized to compute index values of all the possible structures (with at least one pendent vertex) containing four, five and six vertices. The sensitivity towards branching, discriminating power, degeneracy and mathematical properties of the proposed superaugmented pendentic indices were investigated. All the four proposed indices exhibited exceptionally high sensitivity towards branching, high discriminating power and extremely low degeneracy. Superaugmented pendentic index-4 (SAP-4) exhibited exceptionally high discriminating power of 114 in structures containing only six vertices. Statistical significance of the proposed indices was investigated using intercorrelation analysis with Wiener’s index, Balaban’s mean square distance index, molecular connectivity index, Zagreb indices (M1 and M2), superpendentic index and eccentric connectivity index. The exceptionally high sensitivity towards branching, high discriminating power amalgamated with extremely low degeneracy offer proposed indices a vast potential for isomer discrimination, similarity/dissimilarity, drug design, quantitative structureactivity/ structure-property relationships, lead optimization and combinatorial library design. Full article
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