How to prepare crack-free antimony-dopped tin oxide (ATO) films?

I want to prepare ATO transparent, conductive films using doctor blade method on transparent conductive substrates. For this porpose I use an aqueous ATO colloidal solution containing 15-30% (wt)...

05 June 2017 1,030 5 View

Which type of LC texture does the polarized light micrograph in the attachment corresponds to?

The polarized-light micrograph in the attachment corresponds to an ionic liquid crystal material based on ion pairing of dicationic 4,4' bipyridinium capping two thymine groups with amphiphilic...

06 July 2014 2,162 9 View

What are the factors affecting electrochemical reduction of "viologen" in a solution?

There are several factors affecting the reduction of dicationic 4,4'-bipyridinium derivatives ("viologens") such: solvent, charge transfer interactions, substituents at the nitrogen atoms, counter...

03 April 2014 7,277 1 View

What cause the fluctuation of the absorption over the time in fixed-wavelength UV-VIS spectroscopy?

I performed typical temperature-dependent UV-VIS measurements at a fixed wavelength (260 nm) of a DNA probe (Tm experiments). For the samples very diluted the absorbance does not remain constant...

31 December 2013 1,189 6 View

What causes the diminishing signal of the "orto-protons" of paraquat in 1H-NMR?

The 1H-NMR spectra of the paraquat (1,1'-Dimethyl-4,4'-bipyridinium dichloride) in D2O is characterized by 2 doublets pecks in aromatic region: at 9.12 ppm, called "orto-protons" and respectively...

09 October 2013 1,312 6 View

It is accepted to publish Elem. Analysis of compounds containing hygroscopic water traces?

I performed synthesis of a new sulfonic compound with very good spectroscopic integrity but with a small trace of hygroscopic water (less then 2%). This content of water influenced the Carbon...

04 May 2013 5,398 4 View

How to avoid a broad signal in H-NMR spectra due to self-aggregation between analyte molecules?

How can I avoid signal peak broadening in H-NMR spectra due to self-aggregation of molecules in deuterated low-polar solvents (such CDCl3 or THF-d8)? This self-aggregation is due to H-Bond formed...

04 May 2013 5,504 34 View

How to correct Cyclic Voltammetry data for iR drop post-measurement?

I run Cyclic Voltammetry in low-polar solvent such as THF. The high resistance of this electrolyte causes a significant iR drop with effect on the cyclic voltammograms. My question is, can I...

04 May 2013 6,186 21 View

Can I use glassy carbon as a working electrode to study an analyte in suspension?

I am trying to perform cyclic voltammetry of a suspension of Carbon Black Particles (CB) in aqueous electrolyte solution. My goal is to make an analytical study of redox functional groups existing...

02 March 2013 1,613 24 View

Can a Menschutkin reaction in water or alcohol/water mixture as a solvent be performed?

I perform a reaction of a 4,4'-bipyridine N-monosubstituted derivative with an alkyl-bromide substrate (Menschutkin type reaction). For more details see the attached file. The reaction works in...

31 December 2012 1,606 10 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

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

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

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

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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View