final corrected uv TYBSc Spectroscopy VMD Notes 2017 - Copy.pdf - Unit-1 2 UV Spectroscopy By V.M DESAI Unit-1 UV Spectroscopy Notes by Mr V M DESAI

Final corrected uv TYBSc Spectroscopy VMD Notes 2017 - Copy.pdf

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Unit-1& 2) UV Spectroscopy By V.M. DESAI B.Sc.-III Spectroscopy Notes by V. M. DESAI, Asst. Prof. KWC, Sangli Page 1 Unit-1 : UV Spectroscopy Notes by Mr. V. M. DESAI [email protected], 9011442624 Lecture Plan: Lect. No. Contents of Syllabus Date Unit-1) Introduction to Spectroscopy (3Lectures) 1 ° Introduction : Frequency, Amplitude, Energy, Wavelength, Wave number & their relation (For MCQ) ° Numerical problems on Frequency, Energy, Wavelength and Wave number 2 ° Regions of Electromagnetic radiation (Electromagnetic Spectrum) ° Interaction of radiation with matter- Absorption, Emission, Fluorescence and scattering 3 ° Types of spectroscopic methods (For MCQ) ° Advantages of spectroscopic methods Unit-2) UV Spectroscopy (5Lectures) 4 ° Introduction i) Beer-Lamert’s Law ii) Chromophore & Auxochrome IMP 5 ° Types of electronic transition IMP i) Bathochromic Effect Or Red Shift ii) Hypsochromic Effect Or Blue Shift iii) Hyperchromic Effect & iv) Hypochromic Effect 6 ° Effect of conjugation on position of UV band 7 ° Applications of UV spectroscopy: MIMP i) Extent of Conjugation ii) Distinguish between conjugated & non-conjugate diene iii) Detection of Geometrical (cis-trans) isomers iv) Detection of Chromophore v) Detection of Impurities vi) Strength of Hydrogen bond 8 9 Calculation of by Woodward and Fisher rules for - i) Dienes ii) Enones The Roots of Education are Bitter, But the Fruit is Sweet.
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Unit-1& 2) UV Spectroscopy By V.M. DESAI B.Sc.-III Spectroscopy Notes by V. M. DESAI, Asst. Prof. KWC, Sangli Page 2 Previous Year asked University Questions: UV Spectroscopy : (Theory questions) Q. 1) Define the terms Chromophore and Auxochrome with suitable examples. Dec.16, April16 Q. 2) State and explain Beer-Lamberts law. April16 Or State and derive equation for Beer-Lamberts law Q.3) Explain types of electronic transitions produced by absorbing UV- visible radiation. Q.4) Explain the following terms used in UV-spectroscopy: IMP a) Chromophore and b) Auxochrome c) Bathochromic (Red) shift d) Hypsochromic (Blue) shift Or Explain Chromophore and Auxochrome with suitable examples. April2016 Q. 5) Explain how UV spectroscopy is used to determine – i) Extent of conjugation Oct.2015 Dec.16 MIMP April 2016 ii) Study of Geometrical isomers Or MIMP April 2016 Distinguish between Cis and Trans isomer Oct.2015 Dec.16 iii) Detection of Impurities iv) Strength of Hydrogen Bond v) Detection of Chromophore IR Spectroscopy: (Theory questions) Q.1) Explain the fundamental modes of vibrations involved in IR spectroscopy. Oct.2015 Dec.16 April 2017 Q.2) Calculate fundamental modes of vibrations of following molecules; a) Benzene b) Methane c) Water d) Ammonia e) Ethene Q. 3) State Hook’s law . Give its mathematical expression. April-2016/17 Q. 4) Explain how does the resonance effect causes change in IR absorption frequency of >C=O (carbonyl) group. Oct.2015 Q. 5) Explain how hydrogen bonding affects IR absorption in carboxylic acids. Dec.2016 Q. 6) What is selection rule ? Explain IR active and inactive transitions with suitable examples April2016 IMP April 2017 “Only I Can Change My Life. No One Can Do It for Me.”
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Unit-1& 2) UV Spectroscopy By V.M. DESAI
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