Organic Chemistry

Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, composition, reactions,... | Contact experts in Organic Chemistry to get answers

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Questions related to Organic Chemistry

How to freeze clusters containing transition metals for geometry optimization in ORCA?

I am currently exploring the ORCA simulation and I am trying to figure out how to freeze the Ti5O10 cluster but I don't know how to do it. Can someone help how to freeze the clusters for geometry...

10 April 2023 3,265 2 View

Suggest journals with impact factor around 6 to 9 and having no APC?

Kindly suggest some peer reviewed journals in the field of life sciences having no Article Processing Charges and with impact factor of around 6 to 9

28 March 2023 5,747 0 View

Is Thiophene colorless liquid with benzene like aroma or powder?

Chemical Informations

18 March 2023 1,530 17 View

Why ethanediol darkens when separately mixed with dry KOH and conc. H2SO4, and remains dark upon combining two and precipitation of salt?

Ethanediol mixed with conc. H2SO4 (98%) can be easily dehydrated to OH-CH=CH2 that is tuatomerized to CH3CHO (acetaldehyde) that can further undergo dehydrating polymerization in Sulfuric acid or...

09 March 2023 8,498 0 View

How to recover the Pd(PPh3)4 catalyst, already become dark brown?

How to store this catalyst?

07 March 2023 8,977 1 View

How to determine non-fluorescent metal nanoclusters?

I want to know other techniques than TEM and SEM for determining the formation of non-fluorescent metal nanoclusters. I have seen papers use Mass spectrometry. Are there any other techniques?

24 February 2023 8,809 3 View

Can anyone send me list of affordable publication charges social science journals which are Scopus indexed?

I need a list of affordable journals in the social sciences which are Scopus Indexed. Thank you very much.

24 February 2023 3,349 4 View

How to interpret negative values from analysis of soil NO3 using KCl extraction+a continuous flow analyser?

I used the KCl extraction method to extract nitrate from soil samples which were then analysed using a skalar continuous flow analyser. I am doing this to calculate the rate of nitrification from...

10 February 2023 9,928 5 View

Any online tool or webserver that may help in detecting structural alerts for neurotoxicity(apart from ToxAlerts and SA Predictor)?

Working on understanding the mechanism of neurotoxins and making its dataset for toxicophore analysis

08 February 2023 9,916 2 View

ESI Mass Spectral peak?

I had one ESI mass spectrum of a porphyrin. The molecular ion appeared at 734.30. However additionally, i had also observed some peaks of low intensity around 850 and even around 1400 Dalton. My...

11 December 2022 6,914 4 View

Do the two protons in benzoyl benzoate give split peaks?

Usually, it provides a singlet at 5.37 ppm in 1H NMR spectroscopy. But i got one NMR with two singlets at 5.21 and 5.44 ppm. Did they belong to CH2of benzoyl benzoate, or could it be something...

18 November 2022 8,383 6 View

Change of sorbent weight in sep pak cartridges?

Hi everyone, I normally use sep pak C18 cartridges to separate my molecule of interests from copper. I successfully used cartridges with 360mg sorbent weight and I recently bought the cartridges...

04 November 2022 8,958 3 View

Is there a software to search the pI of peptides from a list of peptides directly ?

A software or a method to find the pI of a list of peptides without typing them one by one by sequence in computer pI on ExPasy

19 October 2022 2,946 1 View

Does copper ions open schiff bases?

I am planning to do a click reaction (CuAAC) with a moiety containing a free CHO functionality and subsequently react the moiety with a drug molecule containing an amine group thus forming an...

21 September 2022 804 2 View

How fast do microbes reproduce in microbial fuel cells ?

Do bacteria reproduce in microbial fuel cell reactors while generating electricity? If yes, how fast and how soon are the reactors getting full, especially as applied to wastewater treatment.

14 September 2022 9,677 1 View

Calculation of cAMP concentration?

Can anyone advise on calculating unknown cAMP concentrations using the standard curve? I used the Cell Signaling Cyclic AMP XP® Chemiluminescent Assay Kit #8019. I obtained an exponential decay...

23 August 2022 8,465 1 View

Viscosity of lactose solution with various concentration at different temperatures?

Dear Colleagues, Do you have any reference/paper/document including the data/information or correlation(s) for the viscosity of lactose solution with various concentration at different temperatures?

21 June 2022 1,002 3 View

Can I draw different isomeric structures (on the basis of axial equatorial methyl group attached in a ligand) in pdb format in any software?

Actually my synthesized macrocyclic ligand has three different isomer. Now when I want to draw these in pdb format then no option is found to mention axial or equatorial group. If I don’t mention...

27 April 2022 2,648 0 View

What is a simple and inexpensive way to convert an ester to an aldehyde?

Hello everyone I want to convert methyl salicylate into salicylaldehyde, I want to find the safest and cheapest method. I know NaBH4 can convert aromatic ester into alcohol, but is it possible...

01 February 2022 9,974 4 View

Nitrate reduction test?

I want to perform nitrate reduction test (I'm testing if some bacteria are able to perform arsenite oxidation coupled to nitrate reduction). my media contains different kinds of salts and vitamins...

11 January 2022 1,092 3 View

How can I synthesize and characterize tris-(triethylammonium) phosphate [(Et3NH)3 PO4]?

I tried neutralizing orthophosphoric acid with triethylamine using 1:3 stoichiometry by stirring the two liquids at room temperature but a lot of triethylamine remains unreacted which suggests...

09 December 2021 9,196 0 View

Measuring reduction potential of an enzyme?

Hi, we would like to measure the reduction potential of an enzyme. Can this be done via potentiometric titration? Our lab does not have cyclic voltammetry.

24 November 2021 4,674 2 View

How to control unspecific (hydrophobic?) interactions on PS/DVB Ion exhange resins?

Dear Experts, I'm trying to separate a Fluorescein-like Xanthene dye (only phenolic and carboxylic charged groups) from byproducts with amino groups. I assumed that a strong acidic cation...

23 September 2021 3,633 0 View

How can I convert 3-bromopropylamine hydrobromide to 3-bromopropylamine?

Every method I have tried resulted in a very low yield (5%). In method one, potassium carbonate and amine salt were dissolved in water, followed by the addition of DCM, and stirring for 15 mins...

11 August 2021 631 2 View

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