Au^I Catalysis on a Coordination Polymer: A Solid Porous Ligand with Free Phosphine Sites

Abstract

The best things in life are free: LSK‐1 is a porous polymer with free phosphine sites homogeneously distributed within the structure. Post‐ functionalization gave a AuI‐impregnated solid (16 % w/w) that was used as a recyclable heterogeneous catalyst.

Phosphine and phosphine oxide groups in metal–organic frameworks detected by P K-edge XAS

“…[4][5][6] Research on MOFs is often oriented toward development of structures bearing pendant functional groups that can be modified postsynthetically to provide novel catalytic materials. 9,15 X-ray absorption spectroscopies (XAS), such as X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), are widely used techniques for characterization of solid catalysts. [8][9][10][11][12] Incorporation of phosphine functional groups inside structures with new and existing topologies is achieved using direct solvothermal synthesis, postsynthetic modification 13 or the co-crystallization of organic linkers with similar connectivity, 14 We and other groups foresee new applications for such materials in transition metal immobilization and catalysis.…”

“…18 Valenzano et al detected local deformations in the desolvated UiO-66 structure using EXAFS at the Zr K-edge, complimented by ab initio calculations. 15 The hard X-ray edges of XAS are generally used to probe metal nuclei in MOFs, while characterization of low Z elements is carried out by standard spectroscopic techniques, and often only after digestion of samples. 20) and Ni-CPO-27 21 presented unique spectroscopic features upon sorption with different gases.…”

A Polystyrene‐Bound Triphenylphosphine Gold(I) Catalyst for the Glycosylation of Glycosyl ortho‐Hexynylbenzoates

“…Heterogenization of homogeneous gold complexes has recently been explored in order to synthesize heterogeneous cationic gold catalysts with a well‐defined single active site. Polystyrene, mesoporous silica, zeolite,, polyoxometalates, metal organic frameworks, coordination polymers, and α‐zirconium phosphonate have been reported as supports, which impart remarkable catalytic activity and recyclability. However, these heterogenized gold catalysts have been exploited in a limited number of reactions, including intramolecular cyclization, skeletal rearrangement, C−C cross‐ and homocoupling, hydrogenation, three‐component coupling reactions, and hydration/hydroamination of phenylacetylene …”

Thermosensitive Luminescent Lanthanide Complex with Two Photosensitized Ligands

“…(13) 2 Europium acetate tetrahydrate (5.0 g, 13.6 mmol) was dissolved in distilled water (20 mL). A solution of hexafluoroacetylacetone (7.0 g, 33.6 mmol) was added dropwise to the solution.…”