biochemistry chemistry conformationalanalysis congresses coordinationcompounds inorganic metallocenes metals nuclearmagneticresonancespectroscopy organic organiccompounds physical physicalorganicchemistry protonmagneticresonancespectroscopy qd481a477s1972 qd481w926s1986 radiochemistry stereoisomerism structure-activityrelationships(biochemistry) synthesis transitionmetalcompounds