Hydrocarbon-soluble, polymetallic, lanthanoid aryloxides constructed utilising ligands with distal But groups

A Coordinatively Linked Yb Metal–Organic Framework Demonstrates High Thermal Stability and Uncommon Gas‐Adsorption Selectivity

“…The Yb···m 4 -H 2 O distance (2.70 ) indicates very weak As the coordination number of an aqua ligand is normally one or two, we suspect that the central H 2 O is probably a statistical average of aqua ligands disordered over two or more orientations. This "m 4 -H 2 O" bridged square-planar structural motif has also been observed previously in other lanthanide complexes, [14] although it is unique in a lanthanide MOF. Each TATB ligand connects three Yb 4 (m 4 -H 2 O) SBUs, and each Yb 4 (m 4 -H 2 O) SBU connects eight trigonal-planar TATB ligands and four sulfate ligands to form an infinite framework (see Figure S1 in the Supporting Information).…”

A Coordinatively Linked Yb Metal–Organic Framework Demonstrates High Thermal Stability and Uncommon Gas‐Adsorption Selectivity

“…As the coordination number of an aqua ligand is normally one or two, we suspect that the central H 2 O is probably a statistical average of aqua ligands disordered over two or more orientations. This “ μ 4 ‐H 2 O” bridged square‐planar structural motif has also been observed previously in other lanthanide complexes,14 although it is unique in a lanthanide MOF. Each TATB ligand connects three Yb 4 ( μ 4 ‐H 2 O) SBUs, and each Yb 4 ( μ 4 ‐H 2 O) SBU connects eight trigonal‐planar TATB ligands and four sulfate ligands to form an infinite framework (see Figure S1 in the http://www.wiley-vch.de/contents/jc_2001/2008/z800312_s.pdf).…”

Formation of HoIII Trinuclear Clusters and GdIII Monodimensional Polymers Induced by ortho and para Regioisomers of Pyridyl‐Functionalised β‐Diketones: Synthesis, Structure, and Magnetic Properties

“…The latter is a novel structure in lathanoid hydroxo diketonate cluster chemistry, although this trinuclear cage motif has been known to form using other different classes of ligands, e.g. hydrido and funtionalised pyridines,4 vanillin,6c,6f and aryl oxides 3c,3d. The results herein demonstrate how simple regio‐control of the position of the extra donor atom in the β‐diketonate ligands allows templating of the resulting structure.…”