title: Quantum chemical studies on the conformational structure of nucleic acids. 3. Calculation of backbone structure by extended Hückel theory.
mesh_terms: D002241:Carbohydrates; D008956:Models, Chemical; D008967:Molecular Biology; D009690:Nucleic Acid Conformation; D009705:Nucleosides; D009711:Nucleotides; D010710:Phosphates; D011789:Quantum Theory
chemical_list: D002241:Carbohydrates; D009705:Nucleosides; D009711:Nucleotides; D010710:Phosphates