7.5.2: Homework Problems Chapter 12
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Homework Problems
Section 1
Exercise 1
The coordination compound CH 3 Co(CO) 4 undegoes a migratory insertion. What is the reaction product?
- Answer
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Section 2
Exercise 1
Identify all oxidative additions in the catalytic cycle of olefin hydroformylation:
- Answer
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Step D --> E is an oxidative addition
Formation of HCo(CO) 4 from Co 2 (CO) 8 is also an oxidative addition.
Exercise 2
1. What are the reaction products of the following olefin metathesis reactions?
a) 2 CH 2 =CH-Ph -->
b) n CH 2 =CH-CH=CH 2 -->
- Answer
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a) CH 2 =CH 2 and Ph-CH=CH-Ph
b) CH 2 =CH 2 and (CH=CH) n
Exercise 3
What reaction product would you expect would you expect from the following reaction:
Fe(CO) 4 2- + CH 3 CH 2 I -->
Name the reaction.
- Answer
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Fe(CO) 4 CH 2 CH 3 - + I - Nucleophilic displacement
Exercise 4
Which of the following phosphines would you expect to be most suitable to stabilize metals in low oxidation states:
a) P(CF 3 ) 3
b) P(CH 3 ) 3
c) PH 3
- Answer
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a) P(CF 3 ) 3
Exercise 5
What reaction product would you expect from the following reaction?
Pt(PPh 3 ) 4 + 4 NPh 3 -->
- Answer
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There would be no reaction.
Exercise 6
Which of the following complexes would likely be unstable:
a) [PtCl 3 (C 2 H 5 )] 2-
b) [PtCl 3 (CH 3 )] 2-
c) PtCl 4 2 -
- Answer
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a) [PtCl 3 (C 2 H 5 )] 2-
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