Cu2+ Complexes with Simplest Amino Acid Glycine

This mind map serves as a visual guide to understanding the fascinating coordination chemistry between copper ions (Cu2+) and the simplest amino acid, glycine. From molecular structures to the significance of these complexes in biological systems, this map unfolds the subtle complexities and essential roles they play. Ideal for chemistry students studying coordination chemistry, researchers investigating metal-ion interactions, and anyone curious about the molecular intricacies of amino acid complexes.

Edited at 2021-06-10 18:12:24

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Cu2+ Complexes with Simplest Amino Acid Glycine
This mind map serves as a visual guide to understanding the fascinating coordination chemistry between copper ions (Cu2+) and the simplest amino acid, glycine. From molecular structures to the significance of these complexes in biological systems, this map unfolds the subtle complexities and essential roles they play. Ideal for chemistry students studying coordination chemistry, researchers investigating metal-ion interactions, and anyone curious about the molecular intricacies of amino acid complexes.

Cu2+ Complexes with Simplest Amino Acid Glycine

WSgrvA8V

Recent works View more works>>

Cu2+ Complexes with Simplest Amino Acid Glycine
This mind map serves as a visual guide to understanding the fascinating coordination chemistry between copper ions (Cu2+) and the simplest amino acid, glycine. From molecular structures to the significance of these complexes in biological systems, this map unfolds the subtle complexities and essential roles they play. Ideal for chemistry students studying coordination chemistry, researchers investigating metal-ion interactions, and anyone curious about the molecular intricacies of amino acid complexes.

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Cu2+ Complexes with the Simplest Amino Acid Glycine (Gly)

Abstract

Using potentiometric titrations, UV-Vis, IR and speciation diagrams ,the simplest amino acid Glycine (Gly) is not reacting in a simple manner at all with the copper metal ion (Cu2+) in aqueous solutions at 25˚C.

Using potentiometric titrations, UV-Vis, IR and speciation diagrams

Cu2+ released a net of two protons (2H+’s) into the solution.

Free Gly released one proton (H+) into the solution

when Glycine hydrochloride (Gly.HCl) was used, both the carboxylate and the ammonium groups released their protons

when Glycine hydrochloride (Gly.HCl) was used

Introduction

The simplest amino acid Glycine (Gly) is not that simple when it comes to its reactions with metal ions

Gly is an inhibitory neurotransmitter [1-3].

The Gly/Cu2+ interaction at which the simple one-to-one [Cu2+-Gly] and the bis- [Cu2+(Gly)2]complexes were identified unanimously

Sub Topic

Methods

Potentiometric titrations

The potentiometric titration solutions were contained in a 250 mL beaker equipped with a magnetic stirring bar

In a typical titration; the Gly or Gly.HCl solutions were added first (in independent experiments) followed by the addition of Cu2+ solution.

The mixture was allowed to stand for a minimum of five minutes toreach a state of equilibrium. No other solutions were added to adjust the ionic strength of the solution.

All titrations were conducted at room temperature.

UV-Vis spectroscopy

Gathered all UV-Vis spectroscopy measurements on the T60 high-performance spectrophotometer in connection with UVWIN software version 5.0, both purchased from Advanced ChemTech (Louisville, KY).

UV-Vis Samples were prepared in D.I. water at 25˚C. The entire UV-Vis spectrum was scanned from 250 to 1000 nm using quartz cuvettes with optical path length of 1 cm.

A reference cuvette filled with D.I. water was used with all measurements

IR Spectroscopy

The entire IR spectrum was scanned from 400 to 4000 cm-1 using the provided attenuated total reflectance (ATR) accessory cell compartment equipped with a diamond cell that can accommodate solid samples or aqueous solution samples.

Typical IR spectra were generated in which the X-axis was given as Wave numbers in cm-1 and Y- axis was recorded as % Transmittance