What could be a reason for the anomalous behavior of T2 relaxation at different temperatures?

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Can we deprotonate hydroxyl group of mandelic or salicylic acid?

Hydroxyl groups have pKa 13.6(saliclyic acid) and above 15(mandelic acid,not sure). What reagent can be used in a simple laboratory for the above purpose?

01 February 2013 558 6 View

How to decide the suitable pH for a coordination complex preparation (in general)?

Metal Chlorides undergo hydrolysis in water. So we add acid to prevent that. Now if we add the ligands and if the solubility product is low, we may end up with the precipitate. But do we need to...

09 October 2012 1,066 13 View

Measuring the concentration of lanthanide ion in aqua solution using citrate as the complexing agent

According to the literature, (Applied spectrosopy, Volume 47, Number 6, 1993), I should have got an absorption maxima at 240nm.. 1 had taken 1:1 ratio of citric acid and lanthanum chloride but my...

09 October 2012 5,030 1 View

How can I convert dialkyl ammonium chloride to dialkyl amine efficiently?

In the presence of excess of dialkyl amine, can I expect an equilibrium between the ammonium chloride (alkylated) and corresponding amine? How do I separate the expected dialkyl amine?

09 October 2012 594 2 View

How to convert secondary ammonium chloride to secondary amine?

Ammonium chloride can be alkylated quite easily. But how can we convert them to corresponding amines?

08 September 2012 9,175 1 View

Can anybody suggest a few examples for non-halogenated, hydrphobic and highly coordinating anions?

or Hydrophobic chelating ligands

08 September 2012 375 0 View

How to prepare 15N enriched amines?

15N enriched secondary amines from enriched ammonium chloride

08 September 2012 6,694 0 View

Preparation of Standard solutions of metal ions

How to prepare the stock solutions of exact concentrations of metal ions with the following composition XCl3. nH2O? Is it right if I consider the molecular weight of anhydrous salt for all my...

08 September 2012 6,210 13 View

How to prepare anhydrous salt of LnCl3. xH2O?

Ln=La,Lu,Y in particular.

07 August 2012 4,008 2 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View