The affinity of copper() ions towards -amino acids in the solid-state: a simple route towards mixed complexes

Competitive milling was successfully employed to determine the relative affinity of copper( ii ) ions towards selected l -amino acids ( Asn , Gln , His , Phe , Pro , and Trp ). Although Cu( ii ) ions readily form complexes with all the investigated acids, only l - Trp is selectively bound from its s...

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Bibliographic Details
Published in:CrystEngComm 2020-08, Vol.22 (3), p.4963-4968
Main Authors: Smokrovi, Kristina, ilovi, Ivica, Matkovi - alogovi, Dubravka
Format: Article
Language:English
Online Access:Get full text
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Summary:Competitive milling was successfully employed to determine the relative affinity of copper( ii ) ions towards selected l -amino acids ( Asn , Gln , His , Phe , Pro , and Trp ). Although Cu( ii ) ions readily form complexes with all the investigated acids, only l - Trp is selectively bound from its solid (binary) mixtures [in the form of Cu( Trp ) 2 ]. For the investigated reactions, solid-state milling proved to be superior to solution-based methods as it avoids unwanted competition and solubility problems while opening a simple route towards ternary coordination compounds (otherwise hard to obtain from solution). Competitive milling was successfully employed to determine the relative affinity of Cu( ii ) ions towards selected l -amino acids ( Asn , Gln , His , Phe , Pro , and Trp ). Described process opens a simple route towards mixed coordination compounds.
ISSN:1466-8033
DOI:10.1039/d0ce00687d