Molecular structure 75 Molecular structure-- Gene mapping--Nucleotide sequence 16 Chemistry 15 Journal of molecular structure 12 Molecular spectroscopy 7 VALENCY AND MOLECULAR STRUCTURE 7 MOLECULAR STRUCTURE BY DIFFRACTION METHODS 6 Molecular Structure 5 Molecular structure-- Gene mapping-- Nucleotide sequence 5 Molecules 5 Quantum chemistry 5 Biology 4 Group theory 4 Physical organic 4 Symmetry (Physics) 4 Biochemistry 3 Chemical bonds 3 Chemistry, Physical and theoretical 3 Dissertations, Academic (Ph.D) 3 Electronic structure 3 Life sciences 3 Molecular biology 3 Organic chemistry 3 Bio chemistry 2 Chemistry, Inorganic 2 Computational chemistry 2 Computer programs 2 Electrons 2 Gene mapping 2 Mathematics 2