CHMA10H3 Lecture Notes - Lecture 23: Nuclear Magnetic Resonance Spectroscopy, Biomimetics, Polarimetry
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Chma10h3 introductory chemistry i: structure and bonding lecture 23: molecular. Molecular handshakes and recognition: adaption of what we learn from nature for the design of new materials is called biomimicry and biomimetics, atoms and molecules are too small to see. How do we recognize molecular-level differences between substances: we identify molecules of different substances based on absorption peaks and signal patterns in spectrometers and other instruments. 9. 2 experimental tools for molecular structures and shapes: Experimental techniques: high-resolution mass spectrometry (ms) tells us the formula dn composition of substances. In x-ray crystallography a sample is subjected to an x-ray beam. 9. 4 13c nmr mapping of the carbon framework of molecules. 13c nmr spectra reveal the number and types of carbon atom in molecules: the spectrum for a specific molecule consists of a number of sharp peaks, which are each related to one carbon atom in a molecule.