Arshad Khan

12 Questions 12 Answers 0 Followers

Questions related from Arshad Khan

I'm looking for N-substition reactions of carbazole, does anyone have any tips for these in order to get efficent yield and simple synthesis protocol?

I want to synthesize N-phenyl Carbazole

01 January 2018 6,946 6 View

How to remove chloramine T?

I used chloramine T for my reaction, The product has been formed but NMR analysis showed peak of -CH3 of Chloramine T. I tried to put my product in water but some how it start dissolving. how to...

07 July 2016 935 3 View

Solvent-accissable void volume?

How can I calculate void space volume using palton?

01 January 2016 7,652 0 View

On the basis of the 1H NMR spectrum, how to estimate that he quantity of absorbed solvent?

I have synthesized a porous material that can absorbed p-xylene only.

10 October 2015 5,109 0 View

What is structure factor or Rietveld data file in CIF format?

I want to submit paper to one of willey journal, I successfully upload Cif then the system asked me to upload structure factor or Rietveld data file in CIF format. I don't know that. Need help

06 June 2015 3,135 0 View

What are other causes of red shift in fluorescence spectra of chromophore apart from pi-pi stacking?

My sample contains anthracene derivative with a solvent means solvate, I have done SXRD there is no such pi--pi stacking but it showed red shift don't know how to explain. if someone have...

06 June 2015 551 7 View

How to dissolve?

I crystallize my compound from methanol one year before now I want to dissolve it in the same solvent it didn't work out . Any suggestion please on how to dissolve it again

05 May 2015 5,064 0 View

Can anyone help me how to describe the SEM image?

I have done SEM analysis for my crystal, don't know how to describe it and which image should I put in paper. Thanks

04 April 2015 4,187 5 View

Can someone suggest a book about basics of crystallography?

Can someone suggest me or share here book about basics of crystallography. I don't have major in crystallography.

04 April 2015 4,542 10 View

How to calculate void space volume of unit cell using Platon?

Does anyone knows

02 February 2015 7,769 0 View

How can I calculate void space volume using palton?

Any one help me

02 February 2015 9,069 0 View

Why the fluorophore has a larger dipole moment in the excited state?

Can anyone tell me

02 February 2015 471 4 View