Pellico, DGómez Gallego, María Del MarEscudero, RosaRamírez López, P.Oliván, M.Sierra, M.A.2025-02-022025-02-022011Pellico, D., Gómez-Gallego, M., Escudero, R., Ramírez-López, P., Oliván, M., & Sierra, M. A. (2011). C-Branched chiral (racemic) macrocyclic amino acids: Structure of their Ni(ii), Zn(ii) and Cu(ii) complexes. Dalton Transactions, 40(36), 9145-9153. https://doi.org/10.1039/C1DT10539F10.1039/C1DT10539Fhttps://hdl.handle.net/20.500.14352/117541A new procedure for the synthesis of macrocyclic embedded bis-α-amino acids and their use as cation-ligands is described. These compounds are able to form stable Cu(ii), Zn(ii) and Ni(ii) complexes as long as they have a flexible tether between the two nitrogen atoms. For a given macrocycle, the X-ray diffraction studies revealed diastereomerically pure complexes having different geometries depending on the metal ion.engjournal articlettps://doi.org/10.1039/C1DT10539Fhttps://pubs.rsc.org/en/content/articlelanding/2011/dt/c1dt10539frestricted access547Química orgánica (Química)23 Química