Nagapradeep N.

24 Questions 23 Answers 0 Followers

Questions related from Nagapradeep N.

Is there any purine-based ionic liquid known in literature?

Specifically interested in purine derivative as a cation of ionic liquid. Any relevant reading suggestions are highly appreciated. Thanks.

28 April 2023 10,016 4 View

How 2,5-Dihydroxy-1,4-benzoquinone (DHBQ) decomposes to oxalic acid?

In the following article's ESI, it seems that in situ decomposition of 2,5-Dihydroxy-1,4-benzoquinone (DHBQ) lead to the formation of oxalate under hydrothermal conditions. Can someone explain...

23 November 2022 2,300 2 View

Which nucleobase has reversible redox activity?

I am looking for a nucleobase (utmost its derivative) which shows reversible redox activity. I went through some of the literature and found out that the redox features of nucleobases are very...

21 January 2019 3,350 3 View

What is the role of N-Nitrosobis(2-oxopropyl)amine reagent in amide formation?

I want to know the role of N-Nitrosobis(2-oxopropyl)amine reagent in the following amide formation from compound 11 to 12. Is there any specific reason for its use here? If possible, please...

26 January 2018 5,585 3 View

What is the chemistry involved in the reaction between carboranes and PdCl2?

I came to know that carboranes can be visualized by using Pd-stain which mainly contains PdCl2. Please explain the chemistry involved in this.

10 March 2015 6,915 3 View

What are the scientific reasons behind the increase in mass during the TGA of a compound?

During TGA of my compound (in N2 atm), I am observing an unexpected mass increase between 70 Celsius and 140 Celsius. What are the general reasons behind it? I repeated the experiment several...

08 September 2014 7,678 21 View

What are the pKa values of N's & O's present in nucleobases of DNA & RNA?

If possible, please refer me an article where I can get at least pKa range of N's & O's of nucleobases.

29 March 2014 5,947 2 View

In general, what is the ideal ionic conductivity (S/cm) range of a material that can be useful in biological and medical devices?

I am in the process of developing biomaterial(s) for batteries that possibly have applications in bio-based devices such as drug pumps or pace makers. Please let me know the ideal ionic...

22 November 2013 8,753 3 View

Why Cu(I) binds more strongly with allyl/propargyl moieties than Cu(II)?

If possible, please provide me some references.

11 October 2013 7,411 5 View

Is there any solvent which can solubilize silver paste?

Conductive silver paste is used in our electrochemical studies. To do further experiments, I need to get rid of this silver paste from my compound.

04 October 2013 6,417 10 View

What is the upper limit (distance) for considering Pi-Pi interactions, even though they are weak?

I had cases where two 6-membered aromatic rings are slightly displaced with each other (I mean to say, they are not exactly face-to-face). The distance between their centroids is 4.2-4.4...

05 September 2013 1,910 7 View

Can someone advise on K-NH2 interactions?

Seeking reference where potassium and amino group interactions (like in crown ethers, calixarenes) were mentioned.

20 July 2013 1,303 1 View

What is the solublity of 4,4'-biphenyldicarboxylic acid in various solvents?

Either at RT or at specific temperature.

18 July 2013 2,803 1 View

What is the general resistivity range for cupric oxide thin films?

Please consider the thickness of the film varies between 100-200nm.

09 March 2013 8,630 4 View

Is it possible to trap CO2 gas in MOF by keeping them in an atmosphere surrounded by dry ice?

We would like to trap CO2 in MOFs. Incubating samples in carbonate, bicarbonate solutions and exposing them to a CO2 gaseous atmosphere was not effective in trapping CO2. Please let me know, will...

05 February 2013 9,649 3 View

How to synthesize Guanine-N3-oxide?

I am a little confused between Guanine-N7-oxide and Guanine-N3-oxide synthetic procedures? Please let me know, under which conditions Guanine-N3-oxide forms solely. If possible, please provide me...

09 January 2013 5,887 1 View

What are the possible applications for a Cupric oxide thin film on Si(100) substrate?

The film is composed of cube shaped grains randomly with rms roughness value 2.2 nm.

29 November 2012 6,124 3 View

In 19F NMR why are some of the signals contained in the negative region?

For example, in 19F NMR of trifluoro acetic acid, the signal will come at around -76ppm (similary, for hexafluorobenzene -164). Is there any role of electronegativity of fluorine or does it solely...

11 July 2012 4,704 6 View

How to decide dimensionality in a crystal?

If a crystal structure is composed of discrete units of ligand and metal only (and units are mediated through solvent molecules using hydrogen bonding), what is its dimensionality (Zero...

10 July 2012 9,369 10 View

[eta],[mu] notations in metal-carboxylate coordinations?

If one metal is coordinated to one of the carboxylate oxygens(in ligand), what is its representation using [eta] and [mu]? If one metal is coordinated to both carboxylate oxygens, what is its...

06 April 2012 1,129 3 View

Please suggest some simple biological molecules having sulphur in their structure?

Other than cysteine, methionine, 6-mercaptopurine, glutathione.

28 September 2011 5,099 8 View

Which transition metals form stable metal-metal bonds?

If possible give me the comparison between several transition metals. (preferably 3d and 4d series are required). Please consider the situation is mostly in situ.

14 July 2011 5,289 1 View

How triflic acid is volatile eventhough its B.P. is nearly 162 Celsius?

If its boiling point is 162, how is it possible for triflic acid to develop vapor at room temperature to become volatile? Please specify the answer clearly.

30 June 2011 4,034 10 View

Remarkable ability of guanine?

Why is only guanine capable of forming complex structures like G-quadruplexes? What are the possible reasons behind it. In most of the references I have seen, they mentioned it can form but they...

20 June 2011 1,456 2 View