X-ray Crystallography Watch

Nera
Badges: 0
Rep:
?
#1
Report Thread starter 8 years ago
#1
Hey! i am currently doing CIE A2 chemistry. I really don't understand x-ray crystallography and I would really appreciate it if some explains to me the basis on which this technique works.

P.S: I attached the first part from the application booklet tht speaks of this concept
Attached files
0
reply
shengoc
Badges: 11
Rep:
?
#2
Report 8 years ago
#2
well, tell you what, read up on more textbooks, and use other online resources, don't just depend on one single book if you don't find it helpful. it is about time to start working independently instead of being told everything.

read up on little bit here,
http://www.alchemyst.co.uk/alchemyst...iffraction.pdf

this is an undergraduate level note, so tune them accordingly to your needs.
0
reply
Nera
Badges: 0
Rep:
?
#3
Report Thread starter 8 years ago
#3
I read about it on Wikipedia and another site but the part about Bragg’s Law wasn't clear enough. so I thought someone might have a better explanation.

Thanks for your advice and help
0
reply
shengoc
Badges: 11
Rep:
?
#4
Report 8 years ago
#4
(Original post by Nera)
I read about it on Wikipedia and another site but the part about Bragg’s Law wasn't clear enough. so I thought someone might have a better explanation.

Thanks for your advice and help
tbh, the thing with bragg law is that as long as you understand the derivation, you can use it safely, knowing that the derivation is trivial.

it involves simple trigonometry, see the first few pages on the pdf link.
essentially, for constructive interference, path length(the extra length the radiation has to travel) must be multiples of half wavelengths, ie dsin theta = n/2 lambda

not of any use here, but it is worth knowing that for destructive interference, path length, d sin theta = multiples of wavelengths = ie n lambda

with those ideas + simple trig, you should be able to derive braggs law easily.
1
reply
charco
  • Forum Helper
Badges: 17
Rep:
?
#5
Report 8 years ago
#5
(Original post by Nera)
I read about it on Wikipedia and another site but the part about Bragg’s Law wasn't clear enough. so I thought someone might have a better explanation.

Thanks for your advice and help
Try this for size...

0
reply
Nera
Badges: 0
Rep:
?
#6
Report Thread starter 8 years ago
#6
Thanks alot !
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Cranfield University
    Cranfield Forensic MSc Programme Open Day Postgraduate
    Thu, 25 Apr '19
  • University of the Arts London
    Open day: MA Footwear and MA Fashion Artefact Postgraduate
    Thu, 25 Apr '19
  • Cardiff Metropolitan University
    Undergraduate Open Day - Llandaff Campus Undergraduate
    Sat, 27 Apr '19

Have you registered to vote?

Yes! (236)
39.14%
No - but I will (41)
6.8%
No - I don't want to (45)
7.46%
No - I can't vote (<18, not in UK, etc) (281)
46.6%

Watched Threads

View All