Self-assembly of a Mixed Valence Copper Triangular Prism and Transformation to Cage Triggered by an External Stimulus

Abstract

A triangular prismatic metal–organic cage based on mixed valence copper ions has been designed and synthesized by using metallocycle panels and pillar ligands. The triangular prism will be quickly transformed to a 10-nuclear cage upon an external chemical stimulus, which features a bicapped square antiprism structure. This prismatic cage can act as a catalyst for oxidation of aromatic alcohols to their corresponding aromatic aldehydes with high yields at room temperature under O2 atmosphere.

Beyond Platonic: How to Build Metal–Organic Polyhedra Capable of Binding Low-Symmetry, Information-Rich Molecular Cargoes

“…Li et al also employed ligand 156 to form a mixed-valence Cu II /Cu I metallocycle . Upon combination of this metallocycle with triethylenediamine in a 2:3 ratio, a trigonal-prismatic structure forms . This trigonal prism undergoes a structural transformation to form 157 upon oxidation of Cu I to Cu II .…”

Synthesis and Study of Photothermal Properties of a Mixed-Valence Nanocluster CuI/CuII with Strong near-Infrared Optical Absorption Supported by 4-tert-Butylcalix[4]arene Ligand

“…As shown in Figure S4b, the oxidation states of Cu centers is identified mostly using the binding energy of Cu 2p electrons. 45 Using the peak fitting method, it was shown that there are two independent binding energies, separated by about 2.4 eV, from Cu II and Cu I centers in nanocluster 1 (red/green and blue/cyan peaks in Figure S4b). By calculating the area of four peaks, the relative abundances of 66.6 and 33.3% were obtained for Cu II and Cu I , respectively.…”

Dinuclear mono-bridged or polymeric lanthanide complexes from one ligand: structural transformation and chiral induction

“…9–24 In consideration of their dynamic and reversible features, metal–ligand coordination bonds have been widely used to construct these artificial systems with the ability of structural transformation via dissociation and recombination between the building blocks. 21–38…”

“…[9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] In consideration of their dynamic and reversible features, metalligand coordination bonds have been widely used to construct these artificial systems with the ability of structural transformation via dissociation and recombination between the building blocks. [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] The unique 4f electronic configurations endow lanthanide ions with rich optical, electrical, magnetic, and catalytic properties, and they are widely used in modern industries such as imaging, laser, superconductivity, batteries and catalysis. [39][40][41][42][43][44][45][46][47][48][49][50][51]…”