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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.
Critically examine the statement that privatization can always decentralize economic power.
Q. Explain money market and price changes? The money market and price changes The money demand curve will shift to the right (left) in themoney market diagr
You should now find a press release from the Board of Governors of the Federal Reserve System, dated December 16, 2009, which discusses the decisions of the Federal Open Market Com
One of our clients is a major homebuilder in the Midwest. This company believes that sales of their new homes are highly correlated with business cycles in the overall US economy.
Gross Domestic Savings Income not devoted to current consumption is saved. In an economy during a particular year some units will consume less than their income while some wi
In 2010, Forbes magazine listed Bill Gates, the founder of Microsoft, as the richest person in the United States. His personal wealth was estimated to be $53 billion. If there were
The Government, Rest of the World and the financial markets total expenditure of government can be divided into two parts: transfers to private sector and consumption.
Question: Using diagrams where appropriate, describe the concepts of scarcity, choice and opportunity cost. Distinguish between negative and positive externalities, explain
# ???? .. difference between gdp at market price and nnp at factor cost
describe national income
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