John Peter Mescco

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Questions related from John Peter Mescco

Is it plausible that positive shifts (frequency increase) of functional group peaks of a ligand explain a coordination in Raman spectroscopy?

In FTIR, for example, the carbonyl group peak of an amide ligand shifts negatively at lower frequencies when it participates in a coordination. However, it is observed in Raman that the frequency...

25 September 2019 5,488 2 View

How to know if the sulfate group is found as a free ion, coordinated or as a bridge ligand in metal complexes by Ramman spectroscopy?

I have prepared Zn (II) metal complexes with a neutral ligand derived from pyrazine. However, I use zinc sulfate for synthesis and I have not been able to know if the sulfate group is free or...

01 August 2018 5,739 4 View

What are the reaction products between hydrogen peroxide and nitrogen (or nitrogen from foods)?

I need to oxidize a food sample. I know that the oxidation products of organic matter are CO_2 and H_2O, but I can not find the oxidation product of the nitrogen present in the food (as protein or...

20 May 2017 5,700 2 View