june eg see p nbsp group theoretical symmetry description atomic orbitals contributing bonding methane ch sub sub pp nbsp f estimation electron binding energy butadiene h ckel method thomas h lowry kathleen schueller richardson ''mechanism theory organic chemistry'' rd edn new york ny usa harper row see https booksgooglecom booksisbn accessed june authoritative textbook subject containing number appendices provide technical details molecular orbital theory kinetic isotope effects transition state theory radical chemistry eric v anslyn dennis dougherty ''modern physical
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