2-{[Bis(2-pyridylmethyl)amino]methyl}-6-[(2-hydroxyanilino)methyl]-4-methylphenol: a novel binucleating asymmetric ligand as a precursor to synthetic models for metalloenzymes
作者:Adailton J. Bortoluzzi、Ademir Neves、Nicolás A. Rey
DOI:10.1107/s0108270106050517
日期:2007.2.15
The title compound (H2L), C27H28N4O2, is an asymmetric binucleating ligand with well defined soft (N3O-donor) and hard (NO2-donor) sides. H2L was designed as a ligand for the preparation of heterodinuclear mixed-valence M-III/M'(II) complexes which are models for heterobimetallic active sites of enzymes, principally calcineurin. The molecular structure of H2L shows a spatial pre-organization of the donor groups for coordination. This conformation is stabilized by bifurcated intra- and intermolecular O-H (...) N hydrogen bonds involving both phenol groups. The intermolecular hydrogen bonds link molecules of H2L into chains running parallel to the crystallographic c axis.