Does impurities in the prepared single crystal increase the R value?

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Using domestic oven with teflon autoclave stainless steel?

Dear All: Kindly, is it applicable and save to put teflon autoclave stainless steel inside traditional domestic oven for preparation of nanoparticles or standard oven is required?

07 August 2019 9,537 4 View

Nanoparticles journal with low impact factor?

Can anyone recommend a journal with low impact factor for publishing nanoparticles related subjects.

04 May 2019 7,129 5 View

Is there a data base in any website for plants used in green synthesis of metal oxide NPs?

I need to prepare CuO NPs using green chemistry. How can I know if a certain plant has not been used for CuO NPs synthesis. Is there any data base site or we should simply search in google.

02 March 2019 1,935 3 View

Classifying the name of nanoparticles SEM ?

I have got a SEM image for my nanoparticle (attached). How can I classify it or name the morphology.

01 February 2019 8,724 2 View

What is the effect of deionized or distillled water on nanoparticles synthesis?

If tap water was used to prepare nanoparticles, what would be the effect. for example, does it affect the aggregation or the time required for the NPs formation.

31 December 2018 3,394 6 View

Is it correct that publications become harder year after year?

For example I noticed that some publications in polyhedron journal in 1990 were consisting of synthesis of one compound with single crystal X-ray diffraction while now you need to include many...

31 December 2018 6,797 2 View

Morphology of nanoparticles?

Does grinding affect in any way the shape and aggregation of certain nanoparticles?

10 November 2018 6,729 4 View

Dialysis bag and nanoparticles?

How can we use dialysis bag to purify nanoparticles?

08 September 2018 7,987 8 View

What is the difference between composite and doped nanoprticles?

Hi, if in the case of doped nanomaterials the add ion enters the lattice ,then this mean in the case of composite structure the added ion does not enter the lattice? is that correct, please?

04 May 2018 3,174 2 View

In circular dichroism, why the two plots correspond to only two perpendicular transition vectors ?

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31 December 2017 5,444 2 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Sample dilution for quantitative analysis using ELISA?

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02 March 2021 7,670 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

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02 March 2021 728 2 View

Why am I not able to use all VEP programs for the in silico analysis of avpr1b SNP's?

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28 February 2021 5,197 1 View

What is the difference between genotype and haplotype data in the ped format?

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27 February 2021 1,965 1 View

How to plot the probability paper of Gumbel distribution using R programing?

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25 February 2021 5,229 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

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How to search for crystal structure for material with atomic position labelled?

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Bayesian decision trees and bayesian regression trees in Python and/or R?

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How to generate AA6061 alloy or any aluminium alloy crystal in material studio?

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Ahmad Husain

R factor is parameter indicating the correctness for the structure solution. usually its should be less than 10 % and high value indicated unresolved issues with the structure. R value of 2 is indicating the unresolved issues like unassigned Q peak density, high disorder etc. Impurities has nothing to do with structural parameters like R factor, as either they would remain in the solution or be the past of crystal. Hope it would help.

Adnan Qadir

Thanks Ahmad.