Nita Ghosh

18 Questions 4 Answers 0 Followers

Questions related from Nita Ghosh

What is the difference in the data analysis process for electron scattering as compared to X-ray scattering experiment in the solution phase?

Apart from the experimental part (where an additional problem of radiolysis (ion generation) in presence of electron beam is there) what other problems (like multiple scattering) might one face in...

20 November 2019 2,150 1 View

How does one take care of the multiple scattering effect in solution phase X-ray scattering data analysis?

In solution phase X-ray there is a phenomena wherein photons scattered from the analyte are re-scattered from neighboring particles prior to reaching the instrument detector. During data analysis...

15 November 2019 6,508 4 View

How can I do transient absorption spectroscopy on a sample that disintegrates upon laser excitation?

I am experiencing some unusual behavior in the transient absorption kinetics of a napthalene and napthalimide based sample. In two consecutive scan the kinetics at any particular wavelength is...

07 August 2018 2,220 4 View

What is the effect of flow rate on sample trapping at the focal volume, in a flow cell for pump-probe absorption spectroscopy?

I am experiencing some unusual behavior in the transient absorption kinetics of a napthalene and napthalimide based sample. In two consecutive scan the kinetics at any particular wavelength is...

07 August 2018 7,299 3 View

How do I set up a table top temperature control unit for application in transient absorption spectroscopy?

I want to do temperature dependent Transient absorption speectroscopy where in a two pulse technique we detect the transmitted probe. Can you suggest a temperature control set up for this....

05 February 2018 8,008 3 View

How can one measure focal volume in a pump probe set-up?

focal volume measurement of a beam.

11 August 2017 6,917 0 View

Why do we need a translation stage for CaF2 crystal when we use this as a white light continuum source for pump-probe spectroscopy?

Please mention whether the stage should be translatory or rotatory and the reason behind it.

25 January 2017 8,289 3 View

Can you suggest a solvent for dipyrene?

It is okay even if I have to warm up the solvent a bit.

16 October 2016 4,392 3 View

What are some secondary N-methyl amines having good Raman cross-section?

I would like to do Femtosecond Stimulated Raman Spectroscopy (FSRS) on the substrate to track the dynamics of N-H bond cleavage.

28 July 2016 8,966 0 View

For the XRD spectrum of graphtic Carbon nitride, why the peak at 27.4 degree is much more intense than that of at 13.1 degree?

What does this relative intensity correspond to?

18 May 2016 8,390 5 View

What are the easy ways to make formamide (HCONH2) from the chemicals which are easily available in a chemistry lab?

The procedure must be simple enough so that it can be carried out in a decent chemistry lab.

07 March 2016 2,079 1 View

What are some efficient bottom-up approaches for synthesizing carbon nitride quantum dots?

I am trying to make CN QDs with size of about 60nm.

03 March 2016 5,330 1 View

What are some efficient ways of exfoliation of bulk graphitic carbon nitride sheets?

How to isolate a single 2-D layer of carbon nitride from bulk graphitic carbon nitride?

26 February 2016 9,479 2 View

Is it possible to make carbon nitride quantum dots in organic non-polar solvent?

In what respect will it be different from the ones made in water? Apart from sonication of carbon nitride sheets for long hours what are the other easier ways to make quantum dots from sheets?

26 February 2016 9,519 1 View

What are the efficient ways of making bulk graphitic carbon nitride?

Please mention the most efficient way with easily available precursers.

22 February 2016 5,671 2 View

What is the role of Platinum, which is a co-catalyst, in water splitting reaction where carbon nitride acts as a catalyst?

What role does a co-catalyst play?

15 February 2016 2,975 2 View

Unrestricted density functional theory (UDFT) implemented in the program package Gaussian 09.S1 For the Co and Cr atoms, the (14s9p5d)/[9s5p3d] primit

Please give me an idea as to how should the Caussian input file look like if I want to use the (14s9p5d)/[9s5p3d] primitive set of Wachters-Hay with one polarization f-function for the heavy atoms...

01 January 1970 2,211 1 View

How can I increase the concentration of nanoparticles while keeping their size intact?

I am doing some absorption measurements on nanoparticles, for which I am getting very low signal. I am thinking of increasing the concentration of the nanoparticles which should increase the...

01 January 1970 2,126 3 View