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Short lecture on the rovibrational spectra of diatomic molecules. The rotational and vibrational energy levels of diatomic molecules can be modeled using the rigid rotor and harmonic oscillator model systems. The selection rules for rovibrational absorption spectroscopy is that the vibrational quantum number n increases by 1, and the rotational quantum number J changes by +1 (R branch) or -1 (P branch). These transitions occur in the infrared (IR) region due to the typical value of vibrational constants (1000's of cm^-1). R branch and P branch peaks are separated by 2B (rotational constant) just as in microwave spectroscopy. Notes Slide: http://i.imgur.com/cvTgUBE.png --- About TMP Chem --- All TMP Chem content is free for everyone, everywhere, and created independently by Trent Parker. Email: [email protected] --- Video Links --- Chapter Playlist: https://www.youtube.com/playlist?list=PLm8ZSArAXicIlRL7FdtY3GjmKju4ORHIs Course Playlist: https://www.youtube.com/playlist?list=PLm8ZSArAXicL3jKr_0nHHs5TwfhdkMFhh Course Review: https://www.youtube.com/playlist?list=PLm8ZSArAXicLTRn3cJyyU1TiU7n_Pp4X1 Other Courses: https://www.youtube.com/playlist?list=PLm8ZSArAXicIXArfap9Tcb8izqRPvE0BK Channel Info: https://www.youtube.com/playlist?list=PLm8ZSArAXicLlGO4Rvpz-D6vX8MFbOn4V --- Social Links --- Facebook: https://www.facebook.com/tmpchem Twitter: https://www.twitter.com/tmpchem LinkedIn: https://www.linkedin.com/in/tmpchem Imgur: https://tmpchem.imgur.com GitHub: https://www.github.com/tmpchem --- Equipment --- Microphone: Blue Yeti USB Microphone Drawing Tablet: Wacom Intuos Pen and Touch Small Drawing Program: Autodesk Sketchbook Express Screen Capture: Corel Visual Studio Pro X8
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