How to synthesize metal free macro cyclic Schiff base ligands ?

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Is there any tutorial video to learn Phi program for magnetic data fitting ?

I have to learn the magnettic data fitting of variable temperature graphs and how to make input file to run this program? tutorial video give some more clear idea insted of literature to learn...

10 November 2018 3,203 0 View

If solvent is not cordinated with molecule ,still is there in crystal struc. , that time we have to include solvent mass for other charecterization?

CHN analysis , Mass , UV and CV .

07 August 2018 5,931 0 View

How to isolate my desired product(metal complex) from the unreacted starting material (schiff base), if both have the same solubility?

column chromatography is not possible here because of chance of degradation through hydrolysis and washing also not possible because of same solubility.how can i isolate them and to get my desired...

06 July 2017 6,834 9 View

I have these two variable T magnetic susceptibility graph, in both of them around 50 K ,one hump is coming , can u please explain the reason ?

Please find the file attached.

01 February 2017 7,964 5 View

How the nature of the sample(Solid or liquid) affect the ESR spectra. i have this doubt . please explain me ?

i just gone through this article , see the attachment

31 December 2016 5,471 0 View

Is sonication essential in solubility testing of a substance?

at the time of submitting samples for NMR or HRMS, we should confirm the solubility of compounds. Sometimes a compound is soluble in just adding the solvent and sometimes using sonication, it...

07 August 2016 4,323 3 View

How to isolate ligand from the metal complex?

i have prepared one manganese complex from N,N-bis(picolinyldene) hydrazine and 2-pyridinealdimine. in the absence of Mn(II) they do not react to yield the ligand. for more information i attached...

07 August 2016 5,825 4 View

How to calculate the balance calibration constant for magnetic susceptibility balance ?

for the calculation of magnetic susceptibility ,i need the value of mass magnetic susceptibility (χg) ,that will come if balance calibration constant is known .how to do that..give suggestion plz

07 August 2016 4,601 3 View

Does anyone know about the synthetic procedure for 2,6-Diformyl-4-methylthiophenol ?

Dear Sir/Madam, Does anyone know about the synthetic procedure for 2,6-Diformyl-4-methylthiophenol ? I have gone through a no of literature to find the synthetic procedure to prepare this compound...

07 August 2016 449 6 View

Can we do column chromatography for the purification of metal complexs ?

in case of organic ligand there r several techniques for purification,but in case of metal complex(Cr,Mn,Fe,Co) with schiff base i have not seen any literature for the purification of them except...

06 July 2016 1,419 8 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

How to increase simulation box size?

We intend to study the interaction between peptides and polymer (like PP, PE and PS) through MD simulations using Martini force fields ( Martini 2 for PP and Martini 3 for PE, PS). We have...

08 August 2024 4,842 0 View

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

How to heat polymer for about 130° without oil bath ?

is there any other way to heat a polymer evenly other than oil bath if so what are those and how to use it

06 August 2024 947 1 View

Why don't d-orbitals split themselves, why does it take a ligand? why don't protons from ligand repel nucleus split d-orbitals?

why don't d-orbitals split themselves because of themselves without the presence of ligands? Electrons are indistinguishable. Why wouldn't it be more correct that protons from a ligand split the...

03 August 2024 3,589 3 View

Why doesn't chromium 2+ ion use all its d-orbitals to receive lone pairs from six waters in [Cr(H20)6)]3+?

I'm guessing it's because the ligand experiences too much electron repulsion or proton repulsion from the chromium to insert them close to the 3d-orbitals which are close to the metal nucleus. Is...

03 August 2024 1,370 1 View

Which solvent is better to dissolve with secondary metabolites extracted from fungi?

I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...

03 August 2024 4,725 2 View

I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?

01 August 2024 7,504 2 View

How can you draw a coordinate bond between a metal and donor atom in metal complexes, using discovery studio visulizer software?

Hello,, The metal complex ligand appears incomplete in the screen of the discovery studio visualizer

30 July 2024 3,354 1 View

How to explain the different interaction between soluble and insoluble polymer in water?

Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.

29 July 2024 6,350 3 View

Naveen Gupta

what type of linkers are used ?

Ankit kumar Srivastava

diformyl methyl phenol and diaminopropane

Joseph S Merola

Do you have access to this? http://pubs.acs.org/doi/abs/10.1021/cr0683616?journalCode=chreay

Ashis Ranjan Bandyopadhyay

Please go through the article, suggested by Merola and cross-references cited therein.