Spectroscopy Data Bases SDBS (Japanese sitie) HNMR - CNMR - MS spectra search for Organic Compounds NIST Chemistry WebBook - IR & MS data for Organic Compounds   General Spectroscopy Introduction to Spectroscopy   Infrared Spectroscopy Introduction to Infrared Spectroscopy Dr.Gergens' Tutorial - Fundamentals of Infrared Spectrscopy FTIR Wizard - This spectroscopic tool allows you to input an absortion frequency of your choice and will prepare a list of bonds associated with that frequency.   Nuclear Magnetic Spectroscopy HNMR and CNMR chemical shift data chart (pdf download) Introduction to NMR Spectroscopy Dr.Gergens' Tutorial - Fundamentals of NMR Spectrscopy Jcoupling Constants to Know & Memorize  - DrGergens' Tutorial      Mass Spectrometry Introduction to Mass Spectrometry   Spectroscopic Identification Practice Isomers of Pentanol and Pentene - DrGergens' HNMR Spectra for the fourteen isomers of pentanol   Spectroscopic Identification of Organic Compounds -  A Workbook of Unknowns by Professor Bradley D. Smith , Department of Chemistry & Biochemistry, University of Notre Dame, IN 46556, USA. at smith.115@nd.edu.