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Questions related to Chemistry, Organic
I am trying to create a ML model which includes various energy terms accounting mainly for the enthalpic contribution to ligand-binding. However, entropic contribution is neglected, although it...
10 October 2019 8,835 5 View
Can anybody explain the IUPAC for the given structure ?
23 September 2019 8,560 7 View
Does anybody know a database on fluorescent properties of chemical compounds? There are many papers describing flurescent properties of various compounds. Is there any database on fluorescent...
07 August 2019 9,547 3 View
Dear Researchers, I am doing Gas Chromatography by using n-tetracosane as internal standard for un-targeted compounds , i am facing the following problem: 1: I run n-tetracosane as internal...
30 June 2019 7,945 10 View
I'm working up a Lawesson reaction. I tried the chromatography on silical gel, but there was always a spot at the starting point on TLC (UV 254 nm). The H-MNR and ESI-MS only showed signals of the...
09 June 2019 6,759 6 View
06 June 2019 6,229 6 View
Hello researchers, I would like to know the various techniques/methods which are used to characterize the crystals of a known substance (xylitol) and to check the purity as well as to quantify the...
29 May 2019 3,564 5 View
It is a known fact that the Si/Al ratio of the cementitious matrix influences the behavior of the geopolymer concrete. However, I would like to know about the effect of the Si/Al ratio of the...
22 May 2019 8,406 7 View
how to stabilize the intermediate forms during inter conversion of one form the other? is there any possibility of synthesizing the intermediates?
17 May 2019 4,431 3 View
Consider a solution that one of it's components is sensitive to magnetic field. Is it possible to separate it by magnetic force? Or not? Is magnetic force strong enough to weaken the interactions...
12 January 2019 4,451 3 View
Hello, So I would in a small research Lab doing undergraduate work and we are using the base unit of proline with different functional groups on it. Mine specifically has a TBDMS protected...
28 December 2018 3,785 3 View
Hello there, need some ideas and conditions for pyrrolidone cleavage with formation of double bond (C=C) , for now i know that in strong acid conditions (HCl) this group is stable and cleavage do...
22 December 2018 2,622 4 View
Type III cement is generally preferred for High strength development, and are usually finer than the OPC/Type I cement. In India, which type of cement is classified under Type III?! Whether OPC 53...
27 July 2017 5,398 3 View
Hi, everybody, I'm reading literature concerning photoredox/nickel dual catalysis. And I found that despite various cross-coupling reactions have been developed, almost all of them were racemic....
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We are searching for a postdoc with experience in Medicinal Chemistry and/or Organic Chemistry to work in the development of lead compounds, from natural sources, targeting multidrug resistance in...
01 January 1970 7,811 17 View
Can anyone suggest online site for downloading chemistry text book and presentations for free? now a days most of the site ask money for getting e book. If possible please give the link for those...
01 January 1970 8,410 12 View
Is there any reference to identifying the peaks at FT-IR spectra related to Thallium?
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