Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

problem 1: Propose a method for:

2246_orgonometallic chemistry.jpg

problem 2: In principle, cyclopentene might metathesise to 1,6-cyclodecadiene (cdd). However, a polymer is formed. What is the structure of the polymer, and how does its formation, instead of that of cdd, relate to the problem of pairwise versus non-pairwise mechanisms?
 
problem 3: In some TiCl3-based polymerization catalysts, a small amount of NiCl2 is added to shorten the chain length of the polymer. What is the role of the Ni? What is the structure of the end group when the polymer dissociates from the Ni-doped catalyst? What may be the effect of the additives FeCl3, HgCl2 and VCl5?
 
problem 4: Two chemically inequivalent hydrides, HA and HB, in a metal dihydride complex at 50°C, resonate at δ –5 and –10 ppm, respectively and are exchanging so that each resonance exhibits an initial broadening of 10 Hz at a field corresponding to 500 MHz. Find out the rate of exchange? At 80°C we observe coalescence; find out the new rate of exchange?
 
problem 5: Allyl complexes are characteristically fluxional, the principle pathway being an η3–η1–η3 process. describe this process, and sketch the 1H spectra for the low and high T limits of the complex.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M93191

Have any Question? 


Related Questions in Chemistry

An ozone o3 sparger system has been proposed for a

An ozone, O 3 , sparger system has been proposed for a water-treatment plant. The incoming water in a 80 m3 pond has been stripped of all ozone-demanding substances, and the pH is sufficiently low such that the ozone dec ...

When 450 g of an unknown nonvolatile nonelectrolyte is

When 45.0 g of an unknown nonvolatile nonelectrolyte is dissolved in 500.0 g of water, the resulting solution freezes at -0.930 °C. What is the molar mass of the unknown substance? K f  = 1.86 °C/ m  for water.

A how many milliliters of a 072nbspmhclnbspsolution do you

A. How many milliliters of a 0.72 MHCl solution do you need to obtain 0.0032 mol of HCl? B. A flask containing 470 mL of 0.50 M  H2SO4 was accidentally knocked to the floor. How many grams of NaHCO3 do you need to put on ...

A 187 g sample of mg reacts with 800 ml of a hydrochloric

A 1.87 g sample of Mg reacts with 80.0 mL of a hydrochloric acid solution (pH = -0.544). What is the pH of the solution after all the Mg has reacted? Assume constant volume.

1 the general public often expects solutions to our

1. The general public often expects solutions to our environmental issues that have zero risk. Explain in less than 200 words whether this is possible, supporting your answer with a thoughtful discussion of what risk is ...

Case studythe purpose of this assignment is for you to

Case Study The purpose of this assignment is for you to apply the concepts and information you learned in this unit about combustion products. Also, this assignment provides you with the opportunity to use your skills, e ...

If 628 g ca react with 923 g hcl according to the reaction

If 62.8 g Ca react with 92.3 g HCl according to the reaction below, how many grams of hydrogen gas will be produced, and how many grams of the excess reactant will be left over? Unbalanced equation: Ca + HCl → CaCl2+ H2 ...

Write a reserch paper on gas chromatographythis is a 10

Write a reserch paper on Gas chromatography. This is a 10 pages research paper that should include an introduction on chromatography, principles of separation, type of columns, resolution, detection methods and applicati ...

A solution containing the complex formed between biiii and

A solution containing the complex formed between Bi(III) and thiourea has a molar absorptivity of 9.32x10^3 Lxcm^-1xmol^-1 at 470 nm. What is the absorbance of a 6.24 x10^-5 M solution of the complex in a 1.00-cm cell? W ...

How many moles of carbon dioxide are produced when 193 mol

How many moles of carbon dioxide are produced when 19.3 mol of propane gas is burned in excess oxygen? C3H8+5O2=3CO2+4H2O? Please show work.

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro