Diffraction by solids, Chemistry

Assignment Help:

DIFFRACTION BY SOLIDS

Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The lattice scatters the radiation, and the scattered radiation from one point interferes with the radiation from others so as to either reduce it (destructive interference), or enhance the amplitude of the radiation (constructive interference). The pattern of destructive and constructive interference yields information about molecular and crystal structure.

1228_diffraction by solid.png

 

Fig.1. Constructive (a) and destructive (b) interference of two

waves.

In the case of solids, this wavelength must be of the same order as the crystal lattice spacing (ca. 0.1nm), and there are three primary types of radiation which are used for structural studies of solids. The most commonly used radiation, X-rays, have wavelengths of the order of 0.15 nm, and in the course of diffraction studies are scattered by the electron density of the molecule.


Related Discussions:- Diffraction by solids

Physical Chemistry assignment, apparatus and principle of Flah photolysis.....

apparatus and principle of Flah photolysis...and 3rd order reaction with two same and one different concentration.

Atomic strucyure, Ask The frequency of one ... The frequency of one of the ...

Ask The frequency of one ... The frequency of one of the lines in Paschen series of hydrogen atom is2.340x10 11 Hz. The quantum number n 2 which produces this transition is: (1) 6

Moist silver oxide or dry silver oxide, Ethyl bromide can be converted into...

Ethyl bromide can be converted into ethyl alcohol using- Moist silver oxide or dry silver oxide?

hydrogen peroxide, how is hydrogen peroxide storage in equatorial places (...

how is hydrogen peroxide storage in equatorial places (phil)? should it require 2-8 deg C? or ambient room? any special cabinets or equipment sof storing?

Hybridization activity, Can you give me an activity about hybridization? I ...

Can you give me an activity about hybridization? I badly need some help

Lab report, Criteria for determining the purity of organic compounds

Criteria for determining the purity of organic compounds

Heat Transfer Problems, 200 g of water at 30 degrees C is mixed with 20 g o...

200 g of water at 30 degrees C is mixed with 20 g of silver at 350 degrees C, what''s the final temp?

Zakir, how to calculate the Fluoride ion concentration by ion meter?

how to calculate the Fluoride ion concentration by ion meter?

Dna nucleotides - biomolecules, DNA nucleotides Adenine ...

DNA nucleotides Adenine + Deoxy ribose sugar + Phosphate → Adenosine phosphate Guanine

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd