title: Molecular orbital calculations on the conformation of nucleic acids and their constituents. IX. The geometry of the phosphate group: key to the conformation of polynucleotides?
mesh_terms: D002151:Calorimetry; D003201:Computers; D003461:Crystallography; D000432:Methanol; D008968:Molecular Conformation; D009690:Nucleic Acid Conformation; D009943:Organophosphorus Compounds; D010710:Phosphates; D011789:Quantum Theory; D013816:Thermodynamics
chemical_list: D009943:Organophosphorus Compounds; D010710:Phosphates; D000432:Methanol