A number of achiral (1–4) and chiral (5–10) 1, 2-diamino ethane derivatives bearing on one or both nitrogen atoms long paraffinic chains have been synthesized and successfully tested as carriers for the transport of Cu (II) and α-amino acids across a bulk chloroform membrane from a buffered (pH= 5.5) source phase to a receiving solution of EDTA. This, being a highly hydrophilic ligand with an affinity for Cu (II) several order of magnitude larger than that of ...
