Molecular structure 75 Molecular spectroscopy 28 Chemistry 20 Molecular structure-- Gene mapping--Nucleotide sequence 16 Journal of molecular structure 12 Molecules 11 Biochemistry 10 Molecular biology 9 Physics 7 VALENCY AND MOLECULAR STRUCTURE 7 Chemistry, Physical and theoretical 6 MOLECULAR STRUCTURE BY DIFFRACTION METHODS 6 Biology 5 Molecular Structure 5 Molecular spectroscopy; Nuclear structure; Atomic and Nuclear physics 5 Molecular structure-- Gene mapping-- Nucleotide sequence 5 Quantum chemistry 5 Chemistry, Inorganic 4 Genetics 4 Group theory 4 Molecular spectra 4 Molecular theory 4 Physical organic 4 Proteins 4 Spectrum analysis 4 Symmetry (Physics) 4 Chemical bonds 3 Dissertations, Academic (Ph.D) 3 Electronic structure 3 Electrons 3