Transcription of ULTRAVIOLET AND VISIBLE SPECTROSCOPY
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ULTRAVIOLET AND VISIBLE SPECTROSCOPY
ORGANIC CHEMISTRY. SPECTROSCOPY of Organic Compounds Prof. Subodh Kumar Dept. of Chemistry Guru Nanak Dev University Amritsar -143005. ( ). CONTENTS. Introduction ULTRAVIOLET and VISIBLE SPECTROSCOPY Nature of Electronic Transitions Principles of Absorption SPECTROSCOPY Spectral Measurements Solvent Effects Applications of Electron SPECTROSCOPY Commercial Applications of UV and VISIBLE SPECTROSCOPY Infrared Absorption SPECTROSCOPY Hooke's law and Absorption of Radiations Modes of Molecular Vibrations Other Factors influencing Vibrational Frequencies Sample Preparation Characteristic Group Vibrations of Organic Molecules 1. Introduction The molecular SPECTROSCOPY is the study of the interaction of electromagnetic waves and matter. The scattering of sun's rays by raindrops to produce a rainbow and appearance of a colorful spectrum when a narrow beam of sunlight is passed through a triangular glass prism are the simple examples where white light is separated into the VISIBLE spectrum of primary colors.
In the present chapter, UV-Vis and Infrared spectroscopy have been discussed. Ultraviolet and Visible Spectroscopy This absorption spectroscopy uses electromagnetic radiations between 190 nm to 800 nm and is divided into the ultraviolet (UV, 190-400 nm) and visible (VIS, 400-800 nm) regions. Since the
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