1.Answer BOTH parts a) and b).a)i)Explain the difference between spin-lattice relaxation (T₁) and spin-spinrelaxation (T2).ii) Deuterated acetone, (CD3)2CO, is a common solvent for NMRspectroscopy. Sketch the 1³C{¹H} NMR spectrum of this solvent.Label and explain any coupling in your spectrum.iii) Predict the structure of the residual protio-solvent species observed inthe ¹H NMR spectrum of (CD3)2CO.b)OHABCmax 260 nm 295 nmi) Suggest electronic transitions that can be attributed to the absorptionsreported for compounds A and B, respectively.ii)With the aid of diagrams explain why B absorbs at a lower energy to A.iii)Explain why compound C possesses a charge transfer transition.iv)For compound C explain why changing solvent polarity influences thewavelength of the charge transfer absorption.-CEZ

According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

1. Answer BOTH parts a) and b). a) i) Explain the difference between spin-lattice relaxation (T₁) and spin-spir relaxation (T₂). ii) Deuterated acetone, (CD3)2CO, is a common solvent for NMR spectroscopy. Sketch the 13C{¹H} NMR spectrum of this solvent. Label and explain any coupling in your spectrum. iii) Predict the structure of the residual protio-solvent species observed in the ¹H NMR spectrum of (CD3)2CO.

1. Answer BOTH parts a) and b). a) i) Explain the difference between spin-lattice relaxation (T₁) and spin-spir relaxation (T₂). ii) Deuterated acetone, (CD3)2CO, is a common solvent for NMR spectroscopy. Sketch the 13C{¹H} NMR spectrum of this solvent. Label and explain any coupling in your spectrum. iii) Predict the structure of the residual protio-solvent species observed in the ¹H NMR spectrum of (CD3)2CO.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Section13.1: Nuclear Magnetic Resonance Spectroscopy

Problem 2P

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