Can anyone explain why, in application of complexes sometimes the same ligand shows zone of inhibition in one antimicrobial plate and not in another?

More Prabakara Krishnan's questions See All

Are we plotting molar susceptibility with variable temperature in VSM?

From this can we can obtain the mag.moment of any complexes and then we predict whether it is ferro or anti-ferro mag. Nature any papers or references since there is confusion that some one using...

11 December 2014 1,181 3 View

Can we do VSM in room temperature or is it examined in variable temperatures only?

How can we know the anti ferromagnetic behaviour from VSM studies?

10 November 2014 4,015 3 View

How we can find the stability of the compound or complexes when it was in the solventsSince it i

since it is stable in solid what happen when it dissolve in solvent

10 November 2014 1,279 1 View

What happens to stability when solid substances dissolve in solvent ?

Does it remain stable or what else can happen?

10 November 2014 5,971 2 View

What is the problem that will arise in esr for the complex some times the powder samples of esr samples is not obtained what is the problem here?

the same sample is giving good result for liquid how it is possible

09 October 2014 4,125 0 View

I have an doubt since I used precursors for the preparation of complexes.

The excess precursor will regenerate as crystal or solvent recrystallise in the complex this question is relevant to previous question kindly give the suggestions

09 October 2014 5,947 0 View

In VSM spectral studies of a dinuclear copper can be exist in the mag.moment of 2.26BM or not?

Because the mag,susceptibility or magnetic moment of mono nuclear copper in complexes seems to be 1.73 that means in dinuclear it should be 3.46 but its not what may be the reason any suggestions

08 September 2014 5,106 2 View

How can I obtain a stable crystal?

I have synthesised some copper(II) complexes with non conventional methods- mainly grinding method using pentadentate schiff base ligand. But I cant get a stable crystal and also the complexes...

08 September 2014 2,884 5 View

What is PPMS what we can infer from this technique any reference?

06 July 2014 8,116 1 View

Using VSM technique can we tell whether the complex is ferro or anti-ferro magnetic behavior nature?

If there is any possibility please give me the reference.

06 July 2014 2,416 1 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 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

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

Inquiry on Maximum Nucleic Acid Volume for 2.5 mL Liposome Solution?

I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...

30 July 2024 6,420 1 View

AutoGrid and Autodock 4.2.6 window opens for 1 second then closes and there is no output files?

Good day, I am a student trying to work on Autodock for a project regarding Ligand-DNA interaction so i am quite new to molecular docking. i have followed tutorials and did all the steps...

28 July 2024 2,136 4 View

How can I use DFT-D3 correction ( Siesta version 5.0.1)?

Dear Siesta Users, I installed Siesta 5.0.1 and I want to use Grimme's D3 correction. According to the 5.0.1 manual, I could use a few parameters to include the D3 correction in the...

27 July 2024 5,748 0 View

EDC carbodiimide and NHS easter 's half life among different pH?

It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...

25 July 2024 8,738 0 View

Mechanochemistry: ball to powder mass or ball to powder volume?

I run mechanochemical reactions that involves the use of a large amount of catalyst (1:1 molar ratio to the reactant). When I try to understand the effect of amount of catalyst on the reaction, I...

23 July 2024 9,938 1 View