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

Chemical kinetics is study of the rates of chemical process, Chemical kinet...

Chemical kinetics is study of the rates of chemical processes.                                                                         The detailed explanation at molecular leve

Functional group tests, how do we test for functional groups in chemistry l...

how do we test for functional groups in chemistry lab

Metallurgy, what are the various steps involved in metal extraction?

what are the various steps involved in metal extraction?

NMR spectroscopy, plz explain the magnetic anisotropic effect in acetylene ...

plz explain the magnetic anisotropic effect in acetylene and ethylene?

Explain the types of isomers, Q. Explain the types of Isomers? Ans. ...

Q. Explain the types of Isomers? Ans. Three types of isomers are chain isomers, position isomers, and functional group isomers: Chain isomers are isomers which differ in

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