摘要:
Two novel nanosized bipyrazolate-bridged metallo-macrocycles with dipalladium(II,II) corners, ([(bpy)Pd](8)L-4(NO3)8 and {1(bpy))Pd](6)L-3}(NO3)(6) [L = 1, 4-di(3',5'-dimethyl-1H-pyrazolyl-4yl)naphthalene] have been synthesized through a directed self-assembly approach that involves spontaneous deprotonation of the 1H-bipyrazolyl ligand in aqueous solution. These crown-shaped complexes with deep cavities potentially served as the host to solvent molecules and anions. Such metallo-macrocyclic structures have been characterized by single-crystal X-ray diffraction analysis, elemental analysis, H-1 and (CNMR)-C-13, high resolution electrospray ionization mass spectrometry, UV-visible spectroscopy, and luminescence spectroscopy. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.