Spectroscopy Quick Poll: Interpreting IR Spectra Question Title * 1. What is the biggest challenge you face in interpreting infrared (IR) spectra? (Choose one.) Lack of availability of reference spectra Identification in mixtures Understanding what group frequencies represent Understanding how group frequencies are affected by their chemical and physical environment Question Title * 2. What tools do you use to interpret IR spectra? (Rank from 1 to 11, with 1 being the one you use most often.) 1 2 3 4 5 6 7 8 9 10 11 Commercial reference collections 1 2 3 4 5 6 7 8 9 10 11 Internally developed reference collections 1 2 3 4 5 6 7 8 9 10 11 Pattern recognition 1 2 3 4 5 6 7 8 9 10 11 Group frequencies 1 2 3 4 5 6 7 8 9 10 11 Knowledge about the sample 1 2 3 4 5 6 7 8 9 10 11 Other literature 1 2 3 4 5 6 7 8 9 10 11 External interpretation service 1 2 3 4 5 6 7 8 9 10 11 Physical data (boiling point, melting point, color, state, and so forth) 1 2 3 4 5 6 7 8 9 10 11 Spot tests 1 2 3 4 5 6 7 8 9 10 11 Results from other spectroscopic techniques 1 2 3 4 5 6 7 8 9 10 11 Prayer Done