Insertion reactions of organic anhydrides and the Cu(I) alkoxide [CuOtBu]

Tetra-kis[μ2-1,1,1,3,3,3-hexa-fluoro-2-(tri-fluoro-meth-yl)propan-2-olato]tetra-kis-(μ3-2-methyl-propan-2-olato)octa-copper(I)

The structure of the title ocyacopper cluster contains two C₁₆H₁₈Cu₄F₁₈O₄ units linked through a center of inversion by weak Cu—O bonds.

The title compound, [Cu₈(C₄H₉O)₄(C₄F₉O)₄], crystallizes in the monoclinic space group, P2₁/n and contains a self-assembly of two C₁₆H₁₈Cu₄F₁₈O₄ units linked by bridging tert-butyl groups [Cu—O bonds of length 2.3779 (15) and 2.4248 (15) Å], generating a centrosymmetric dimer. The asymmetrical unit, C₁₆H₁₈Cu₄F₁₈O₄, contains an almost square-planar arrangement of the four Cu atoms linked by bridging tert-butyl and perfluorinated tert-butyl groups with Cu—Cu distances ranging from 2.7108 (4) to 2.7612 (4) Å and Cu —Cu—Cu angle values close to 90° [ranging from 89.459 (10)° to 90.025 (11)°]. These dimers are further linked by weak C—H⋯F and F⋯F inter­actions. As is commonly encountered in perfluorinated tert-butyl groups, one of the CF₃ groups is disordered and was refined with two equivalent conformations with occupancies of 0.74 (3) and 0.26 (3).

Exploratory studies of a multidimensionally talented simple MnII-based porous network: selective “turn-on” recognition @ cysteine over homocysteine with an indication of cystinuria and renal dysfunction

Selective and real field detection of biothiols (Cys and Hcy) from aqueous and extra bio-matrices by a simple Mn^II-MOF.

The Anhydride Route to Group 15/16 Ligands in Oligomeric and Polymeric Environments: From Metal Complexes to Supraionic Chemistry

The aim of this paper is to introduce a synthetic concept suitable for the preparation of a broad variety of compounds. The so-called anhydride route (in this article the term anhydride is used for compounds derived from corresponding acids by formal loss of H2O, H2S and H2Se) has so far led to a range of unusual Group 15/16 ligands in oligomeric and polymeric environments. Commonly, reactions of neutral precursor molecules, for example, [{RP(S)(mu-S)}2] (R=4-anisyl) Lawesson's reagent or [{PhP(Se)(mu-Se)}2] Woollins's reagent and metal salts are performed to result in novel coordination compounds in which ligands and metal atoms form coordination oligomers and polymers. An attempt is made to relate the outcome of the investigations to the type of metal used. By relating the strength of ionic interactions, which correspond to metal-donor distances, to phenomena observed in the solid-state structures, an aspect of supraionic chemistry is described. Chemistry of and beyond novel Group 15/16 anions is further discussed using a novel approach in coordination chemistry where the chemical nature of ligands is unknown prior to the experiment despite the use of a range of similar starting materials.