Related Experiment Video
Updated: May 4, 2026

Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds
Published on: October 15, 2019
Construction of an M3L2A6 cage with small windows from a flexible tripodal ligand and Cu(hfac)3
Mari Ikeda1, Keiji Ohno, Yuki Kasumi
1Research Centre for Materials with Integrated Properties and ‡Department of Chemistry, Faculty of Science, Toho University , 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan.
Abstract:
An M3L2A6 cage has been prepared with small windows from a tripodal ligand, L, and Cu(hfac)2. Cold spray ionization mass spectrometry of a mixture of L and Cu(hfac)2 revealed the formation of a Cu3L2hfac6 cage in solution. X-ray crystallography showed that the Cu3L2hfac6 cage included neutral molecules such as THF and CHCl3. Furthermore, the six hfac anions have been shown to play an important role in holding neutral guest molecules securely in place.
More Related Videos
Related Concept Videos
Crystal Field Theory - Octahedral Complexes
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than...

