3 Questions 1. Draw the molecular structures of the two isomers A and B of [Mo(CO)4(PPH3)2] that you have synthesized. Give sound chemical reasons for your assignments. 2. List any other examples of compounds where infrared spectroscopy can be used to infer the molecular structure of metal carbonyl derivatives. 3. What is the function of NaBH4 in the formation of [Mo(CO) 4(PPh3)2] (Isomer A)? reduc 4. Why is it necessary to work under an inert atmosphere when one is working with metal carbonyl derivatives? which of the two isomers of [Mo(CO) 4 (PPh 3)2] is thermodynamically more 5. stable? 6. The infrared frequencies of the C=O stretching modes for [Mo(CO)3(pyridine) (PPH3)2] are lower than those for [Mo(CO)4(PPh3)2]. What does this indicate regarding the relative donor and acceptor strengths of pyridine and carbon monoxide? Explain your answer.

3 Questions 1. Draw the molecular structures of the two isomers A and B of [Mo(CO)4(PPH3)2] that you have synthesized. Give sound chemical reasons for your assignments. 2. List any other examples of compounds where infrared spectroscopy can be used to infer the molecular structure of metal carbonyl derivatives. 3. What is the function of NaBH4 in the formation of [Mo(CO) 4(PPh3)2] (Isomer A)? reduc 4. Why is it necessary to work under an inert atmosphere when one is working with metal carbonyl derivatives? which of the two isomers of [Mo(CO) 4 (PPh 3)2] is thermodynamically more 5. stable? 6. The infrared frequencies of the C=O stretching modes for [Mo(CO)3(pyridine) (PPH3)2] are lower than those for [Mo(CO)4(PPh3)2]. What does this indicate regarding the relative donor and acceptor strengths of pyridine and carbon monoxide? Explain your answer.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.7QAP: A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a...

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