Ask Question, Ask an Expert


Ask Chemistry Expert

problem 1: Rationalize the given observations:

a) On going from Fe(CO)5 to Fe(CO)3(PPh3)2, absorptions in the IR spectrum at 2025 and 2000 cm-1 are replaced by bands at 1944, 1886 and 1881 cm-1.

b) On forming IrBr(CO){η2-C2(CN)4}(PPh3)2, the unique C-C bond in C2(CN)4 lengthens from 135 to 151 pm.

c) The Tolman cone angles of PPh3 and P(p-MeC6H4)3 are 145°, however that of P(o-MeC6H4)3 is 194°.

d) A single ν(CO) band is observed for the ion [Co(CO)3(PPh3)2]+.

problem 2: List out the given in order of decreasing reactivity towards trimethylamine oxide: Mo(CO)6, [Mn(CO)6]+, Mo(CO)2(Ph2PCH2CH2PPh2)2, [Mo(CO)5]2, Mo(CO)4(Ph2PCH2CH2PPh2),Mo(CO)3(NO)2. What physical data would you prefer to measure as an aid to ordering such complexes?

problem 3: NO+ is isoelectronic with CO and frequently replaces CO in substitution reactions; therefore it might seem the reaction below is favorable. Comment on whether the process is likely.

Mo(CO)6 + NOBF4 → [Mo(NO)6][BF4]6 + 6CO

problem 4: A complex with the empirical formula Mn3(C5H5)3(NO)4 has infrared absorptions at 1320 and 1495 cm-1 and a single peak in the 1H NMR spectrum. Draw a plausible structure.

problem 5: The product of reaction between PtCl2 and CO at high pressure and 200 °C consists of a molecular weight of 322. Determine the formula and recommend possible isomers. Comment on the probable relative MC and CO bond lengths in such isomers. Can vibrational spectroscopy be used to differentiate between isomers?

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M93205

Have any Question? 

Related Questions in Chemistry

Why is the freezing point of water set at 32ordmf why does

Why is the freezing point of water set at 32ºF? Why does the Fahrenheit scale start at 0º?

Question 1decide why the heat from a candle flame is barely

Question 1 Decide why the heat from a candle flame is barely tolerable when a person places his or her hand above the candle compared to when the hand is placed next to the candle. The highest temperature is at the tip o ...

You are provided with 200ml of 05moll-1 hydrochloric acid

You are provided with 200ml of 0.5molL-1 hydrochloric acid in which has been dissolved in a small quantity of anhydrous sodium carbonate. When titrated, 25ml of this solution requires 20.5ml of 0.5molL-1 sodium hydroxide ...

Question 1 nuclear equationa write a nuclear equation for

Question 1: Nuclear equation a) Write a nuclear equation for the beta decay of thallium-210. b) Plutonium-239, a toxic isotope that cause lung cancer, is an alpha emitter. Write nuclear equation. c) Write the nuclear equ ...

1 show the alcohols you would obtain by reduction of the

1. Show the alcohols you would obtain by reduction of the following carbonyl compounds: (a) CH 3                   (b)          (c)  O      CH 3        |                                                         ||         ...

Assignmentpart 11the ph scale is generally considered as a

Assignment Part 1 1. The pH scale is generally considered as a scale from 1 to 14. State a value of pH considered to be: a. acidic b. basic c. neutral 2. The acid in our stomach is used to break down food proteins and ki ...

1reacting molecules or ions in a solution at room

1. Reacting molecules or ions in a solution at room temperature are in constant motion and collide. Some collisions lead to formation of product and some don't. what determines a reaction will take place. 2. Is there any ...

Assignmentthe purpose of this assignmentsubmission of an

Assignment The Purpose of this Assignment Submission of an ePortfolio is required for this class. Your Signature Assignment should address topics of personal interest, societal concerns, local, or even global issues, fro ...

A 1000l tank at 89degc is filled with 786g of boron

A 10.00L tank at 8.9°C is filled with 7.86g of boron trifluoride gas and 7.09g of dinitrogen difluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas ...

A 010 m fes04 aq solution is electrolyzed between a

A 0.10 M FeS04 (aq) solution is electrolyzed between a magnesium cathode and a platinum anode with a current density of 1.50 mA cm-2.The hydrogen over potential is 0.60 V. What will be the concentration of Fe2+ions when ...

  • 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