interpret and explain the nmr spectrum, Macroeconomics

Assignment Help:

Treatment of Na2PdCI4 with 3-chloro-2-methyl-1-propene under an atmosphere of CO yields the dimer [(113- C4H7 )PdClb (A). The 1H NMR spectrum of A at 298 K shows 3 signals: a singlet at 0 2.2 and 2 doublets at 2.9 and 3.8 ppm with the relative intensities of the signals being 3:2:2 respectively. Addition of 2 moles of AsPh3 to the dimer A gives complex B (molar ratio As:Pd:CI = 1:1:1). 1H NMR spectrum of B at 195 K displays a singlet at 0 2.1 and 4 doublets at 0 2.7, 3.2, 3.6 and 4.5 with relative intensities 3:1:1:1:1 as well as aromatic protons due to AsPh3. On warming a solution of B the 1H NMR changes to show two singlets at 2.1 and 3.5 with relative intensities 3:4 in addition to resonances due to the aromatic protons.

(a)  Give the structures of A and B and describe the bonding between the organic group and the palladium in A.

(b)  Interpret and explain the NMR spectrum of A

(c)  Interpret and explain the NMR spectrum of B at 195K

(d) Discuss what happens when B is warmed to 323K and how it accounts for the change in the NMR spectrum.

(e) How would you make the organic group in B more susceptible to nucleophilic attack.

 


Related Discussions:- interpret and explain the nmr spectrum

DSGE model, I need to run DSGE model of one published paper of another auth...

I need to run DSGE model of one published paper of another author. Just I would like to request to run that paper using MATLAB(Dynare). And send me the dynare code.m 100 words acce

Consumer equilibrium -cardinal theory, Consumer Equilibrium: According...

Consumer Equilibrium: According to our assumption for 'x' units consumption of the commodity, gross utility obtained by the consumer is U(x).But for this, the consumer must sp

Neo-classical synthesis, Neo-classical synthesis is a synthesis of classica...

Neo-classical synthesis is a synthesis of classical model and Keynesian model. In brief, it states that Keynesian model is correct in the short run whereas the classical analysis i

Demand for health care services, What is the relationship between quality, ...

What is the relationship between quality, consumption and demand for health care services?

MONOPOLY, WHAT ARE THE SOURCES OF MONOPOLY

WHAT ARE THE SOURCES OF MONOPOLY

Determine about the gross domestic product growth, Determine about the gros...

Determine about the gross domestic product Growth By (nominal) GDP-growth we mean % change in (nominal) GDP over a particular period of time. Real GDP growth is stated as perce

What is use of long-run average total cost curve in output, What is the use...

What is the use of long-run average total cost curve in the producing output? The long-run average total cost curve demonstrates the relationship in between output and average t

Show the advantage and disadvantage of money, Q. Show the advantage and dis...

Q. Show the advantage and disadvantage of money? Money has one significant advantage and one disadvantage compared to bonds:  · Advantage: Money is more liquid than bond

Equilibrium price and quantity of hybrid vehicles, Suppose gasoline and hyb...

Suppose gasoline and hybrid vehicles are substitutes. Draw a graph indicating what will happen in the market for hybrid vehicles if the price of gasoline increases. Be sure to labe

Trade, short notes on absolute advantage

short notes on absolute advantage

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd