Lanthanide–Transition‐Metal Sandwich Framework Comprising {Cu₃} Cluster Pillars and Layered Networks of {Er₃₆} Wheels

Abstract

Synergistic coordination between isonicotinate (ina) and 1,2‐benzenedicarboxylate (bdc) ligands under hydrothermal conditions results in the formation of two new coordination polymers, [Er7(μ3‐O)(μ3‐OH)6(bdc)3](ina)9[Cu3X4] (X=Cl, Br). Wheel‐shaped [Er36(μ3‐OH)30(μ3‐O)6(bdc)6]54+ ions form a 2D network (see picture), which is further pillared by [Cu3X4(ina)6]4− to give a 3D framework.

Structural Variation from 1D to 3D: Effects of Ligands and Solvents on the Construction of Lead(II)–Organic Coordination Polymers

“…Elemental and ICP analysis for C 60 H 32 N 8 O 8 Pb 2 (%): calcd: C 51. 21,H 2.29,N,7.96,Pb 29.45;found: C 51.67,H 2.13,N 8.33,Pb 29.31. (5) …”

“…area has focused on the assembly of transition metal and lanthanide wheels, and the analogous chemistry of p-block elements such as Pb has hardly been investigated. [21] The metal wheels in 10 are further linked to each other to generate a rare 3D bcc-type net (also called CsCl net) based on [Pb 8 O 8 ] clusters as the eight-connected nodes ( Figure 10 d and e). Although the bcc-type net is commonly described in textbooks, such topologies with eight-connected nodes have only appeared in a few examples.…”

“…The Pb II ions are linked by m 2 -O atoms of cis-chdc bridges to give an unprecedented nanosized [Pb 8 A C H T U N G T R E N N U N G (cis-chdc) 8 ] neutral wheel cluster and, to the best of our knowledge, this is currently the largest Pb II wheel with bridging oxygen atoms. [21] Wheel clusters have attracted intense interest, not only because of their fascinating physical properties, but also because of the architectural beauty of their structures. So far, most of the work in this Figure 8.…”

Gd26Cluster Consisting of Distorted Cubane Cores: Synthesis, Structure and Heterogeneous Catalytic Epoxidation of Olefins

“…have been synthesised and characterised although reports of lanthanide clusters are limited. Controlled hydrolysis of the metal ions led to high-nuclearity lanthanide clusters producing tetra-, [13] penta-, [14] hexa-, [15] hepta-, [16] octa-, [17] nona-, [18] deca-, [19] dodeca-, [20] tetradeca-, [21] pentadecanuclear [22] and hexatriacontanuclear [23] lanthanide clusters. In this context, oxo, hydroxo and fluorido bridged lanthanide clusters are worthy of note.…”

Synthesis, structure and photoluminescence of a 3D pillared heterometallic coordination polymer containing 2D inorganic cadmium‐potassium‐oxide layer subunits

“…A wide variety of heterometallic complexes with interesting topologies and desired properties have been prepared through judicious choice of organic ligands and metal ions [3][4][5][6]. These heterometallic coordination polymers displayed different physical properties from those of the coordination polymers with single metals due to the value-adding and possible synergistic effects between metal centers with distinct electric configurations.…”