Premium
Molecular Recognition of an Amino Acid by a Novel Macrocyclic Monoxo‐tetraamine and Its Zn II Complex
Author(s) -
Gao Jian,
Martell Arthur E.,
Reibenspies Joseph
Publication year - 2003
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200390011
Subject(s) - chemistry , potentiometric titration , ternary complex , ternary operation , aqueous solution , glycine , molecular recognition , crystallography , crystal structure , stereochemistry , amino acid , molecule , ion , organic chemistry , biochemistry , enzyme , computer science , programming language
Abstract The macrocycle monoxo‐tetraamine, 1,4,8,11‐tetraazacyclotridecane‐5‐one (mota), was found to be extremely efficient in the recognition of the amino acid, glycine (Gl), in aqueous solution. The single‐crystal structure of a five‐coordinated mota‐Zn II complex is reported. This Zn II complex acts as host for Gl to form a stable ternary complex. The recognition constants and the recognition mechanism for the binary and ternary complexes are based on potentiometric data.