TY - JOUR AU - Hall, Lowell H. AB - A differential molecular connectivity index, ΔmX, has been defined which is the difference between the simple and the valence connectivity indexes of the same order, m, is ΔmX = mX — mXv. The information contained in this index is largely electronic with contributions from adjacent alkyl fragments amounting to the size of m. The electronic information is a quantitation of the pi and lone pair electrons on that part of the fragment defined by m. The index is capable of modeling selected physical properties which are regiospecific within a molecule. Examples include NMR chemical shifts, gas phase basicities, ionization potentials and chromatographic retention indexes. TI - A Differential Molecular Connectivity Index JF - Quantitative Structure-Activity Relationships DO - 10.1002/qsar.19910100208 DA - 1991-01-01 UR - https://www.deepdyve.com/lp/wiley/a-differential-molecular-connectivity-index-oJoM5gX9EE SP - 134 EP - 140 VL - 10 IS - 2 DP - DeepDyve ER -