Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Q. Overnight rates and interest rates with longer maturity? By controlling overnight interest rates, central bank will affect interest rates with longer maturity. Main reason f
The total demand (marginal benefit) curve for visiting the Great Barrier Reef is as follows: Price = 5000+100*Fish Biomass (tons per square mile) -10*Number of Trips. a. Does th
it has been argued that economic development of developing countries has been held back by a persistent fall in the terms of trade of developing countries over the long run
Explain the difference among saving and investment as explained by macroeconomists. Which of the following situations represent investment or saving? Explain: a) You u
1. In December 1979 it was possible to buy a January 1980 contract in gold at the New York Commodity Exchange for $487.50 per ounce and sell an October 1981 contract for $614.80 on
Why do some countries have a low real per capita income? Low real per capita income considers being largely due low productivity (i.e., output per worker) of low valued added
A budget deficit is defined as: A. accumulated surpluses minus accumulated deficits. B. a shortfall of revenues compared to expenditures. C. accumulated deficits minus accumulated
In a particular month, the labor force is 130 million, there are 9.1 million unemployed workers, the job -losing rate is 3% per month, and the job-finding rate is 40% per month. Ho
A nursing home contracts with an HMO for skilled nursing care at $2.00 PMPM. If costs are expected to average $120 per day, what is the maximum utilization of days per 1,000 member
Trade and Economic Growth: For a long time, academic debate on trade liberalization and its positive effects on growth rate remained inconclusive and unsettled. But most recen
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd