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A quantitative structure–property relationship (QSPR) study was performed for prediction of enthalpies of 134 acyclic alkanes using modified Xu (mXu) index and atom-type-based AI topological indices. At first, a simple linear regression model was developed using mXu index alone and the statistics were R2=0.947, F=2335 and standard error of 1.00. The results showed that combination of the atom-type-based...
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