What is Negative 2Theta angle and its use thereof in XRD measurements?

XRD machines of Bruker (D8 Advance model ) and Panalytical (Empyrean model) shows an 2Theta range in high negative angle (upto -111 Degree. Kindly let me know what is this negative angle and what...

09 October 2014 5,286 1 View

Is it possible to express di- or tri-peptides using bacterial expression system? Or is SSPS/ Liquid Phase synthesis is the only option?

I need di- and tri-peptides for my intended work. I was going through internet and came across three different methods..1) by Solid state peptide synthesis (SSPS) 2) Liquid Phase Peptide Synthesis...

08 September 2014 4,471 2 View

How can Quantum dot stability be improved?

I have been synthesizing ZnSe QDs, doped with Cu or Mn through aqueous route. I use MPA as capping agent in 1:2 molar ratio with compared to metal ion concentration. The synthesis procedure...

03 April 2014 515 2 View

Why is the MOF particle size usually not calculated through the Scherrer equation?

02 March 2014 5,586 11 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

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

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View