Novel trans-disubstituted hexaaza-macrocyclic ligands L1
were successfully prepared by the alkylation of the trans secondary amines presented in L with pyridine and ethyldioxolane groups, respectively. The coordination
properties of compounds L1
towards different transition, post-transition and lanthanoid metal ions were explored. Colorless crystals of [NaL1
]I and L2´
Br2, suitable for X-ray diffraction, were obtained
by slow evaporation of an acetonitrile solution of compounds L1
, showing an anti conformation between the methyl groups and the pendant arms in trans positions. The [ML1
]n+ (M = Ni2+,
Cu2+, Zn2+) systems were investigated by DFT calculations (B3LYP model).
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Document Type: Research Article
Inorganic Chemistry Department, Faculty of Chemistry, University of Santiago de Compostela, Santiago de Compostela, Spain;
Research Unit, Hospital Universitario Lucus Augusti (HULA), Servizo Galego de Saúde (SERGAS), Lugo, Spain
Publication date: October 2, 2018