Newman Bond projection

 

 

 

1. Use a Newman projection of the C3C4 bond of 2m4-dimethyl-3-phenyl-4-ethylhexane to show the most
stable conformation first. Rotate through all of the eclipsed and staggered conformations. Using the energy
values provided in the table below, calculate the relative energies of the different conformations. Plot the
changes in energy in the graph diagram provided. Calculate a ratio of least stable to most stable based on H
values. Hint: Draw a 2D structure first and “bold” the bond viewed in your Newman projection, then decide your
line of sight.
2D structure
Newman projections:
lowest PE
2,4-dimethyl-3-phenyl-4-ethylhexane
H) =
Keq = 10
0
1
2
3
4
5
6
most stable
least stable
H) =
7
8
G  H
Keq = 10
– H
2.3RT
H Me Et i-Pr t-Bu Ph Br
H 1.0 1.4 1.5 1.6 3.0 1.7 1.6
Me 1.4 2.5 2.7 3.0 8.5 3.3 2.8
Et 1.5 2.7 3.3 3.8 10.0 4.0 3.1
i-Pr 1.6 3.0 3.8 7.8 13.0 8.1 3.6
t-Bu 3.0 8.5 10.0 13.0 23.0 13.5 9.1
Ph 1.7 3.3 4.0 8.1 13.5 8.3 4.2
B

 

 

 

Sample Solution

used around the world. It had been announce recently that Internet address are to allow non Latin character as addresses, this means in future, Chinese character forming the web address is highly possible [Choe, 30 Oct 2009]. While the impact of this is still uncertain, but company that market target country using non-Latin character as language like China and Japan will definitely need to adapt to this change.

4.0 Industrial Analysis

4.1 Threat of new entrants

The airline industry require a huge capital investment, with at least millions of capital required before any business process, it is estimate that the company require approximately $1 of capital to generate $1 of revenue. It would require a lot of logistic works, highly skilled personal such as pilots, aircraft technicians and specialise managerial personnel which are often limited in resources in the industry. Limited access to airport and route are also another difficulty post to new entrant [Calingo. 1997]

As the Asia Pacific region move toward free trade and deregulation of airspace, more opportunity are created. Since introduce by America Southwest Airlines in 1973, Low Cost Carrier (LCC) have gain popularity and proven to be profitable [Uherek, 2006]. Many new companies had been form to provide this service around the Asian region around 1990s, currently Asia region have over 60 of such LCC mainly offering short distance flight within same country. Some of these airlines have started to offer long haul budget airline, for example Air Asia had introduce Air Asia X in 2007 that offer flight from Malaysia to London, Australia and India [Kent, 5th Jan 2007]. Although these Low Cost Carrier (LCC) were not yet considered as a direct competition to SIA as the target market for these airlines is more for cost conscious traveller, it is possible that in not so distance future, these

This question has been answered.

Get Answer
WeCreativez WhatsApp Support
Our customer support team is here to answer your questions. Ask us anything!
👋 Hi, Welcome to Compliant Papers.