From K[ReMoS(CN)] Solid Solution to Individual Cluster Complexes: Separation and Investigation of [ReMoS(CN)] and [ReMoS(CN)] Heterometallic Clusters.

A series of new cluster compounds with {ReMoS} and {ReMoS} cores has been obtained and investigated. The clusters with different Re/Mo ratios were isolated as individual compounds, which made it possible to study their spectroscopic and electrochemical properties. The geometry of the new clusters was studied using a combination of X-ray diffraction analysis, XAS and quantum chemical DFT calculations.

CsLnCuS (Ln = La-Nd, Sm-Tb): Synthesis, Crystal Structure, and Magnetic and Optical Properties.

This work reports the preparation of new quaternary sulfides CsLnCuS (Ln = La-Nd, Sm-Tb), their original crystal and electronic structures, and their magnetic properties. The sulfides were prepared using a reactive flux method from mixtures of LnS (EuS), CsS, CuS, and S. They crystallize in a new type of structure (2/ space group) and exhibit a layer-like crystal structure, which is a hybrid of those of the ACeCuS series (A = Cs, K) and that of KCeCuS.

Replenishment in the Family of Rhenium Chalcobromides; Synthesis and Structure of Molecular {ReS}Br(TeBr), Dimeric [{ReS}Br(TeBr)], and Polymeric {ReS}Br Compounds Based on the {ReS} Tetrahedral Cluster Core.

We have obtained three new rhenium(IV) chalcobromides belonging to the homologous series {ReS}Br(TeBr) ( = 0, 3, 4): a molecular complex {ReS}Br(TeBr) (), a dimeric complex [{ReS}(TeBr)Br(μ-Br)] (), and a two-dimensional (2D) polymeric compound {ReS}Br (). Compound is isotypic to the already known {ReTe}(TeBr)Br, while and exhibit a new type of binding of tetrahedral clusters via μ-Br bridges. Compounds were characterized by X-ray single-crystal diffraction, X-ray powder diffraction, and thermal and elemental analyses.

2-Aryl-6-Polyfluoroalkyl-4-Pyrones as Promising R-Building-Blocks: Synthesis and Application for Construction of Fluorinated Azaheterocycles.

A convenient and general method for the direct synthesis of 2-aryl-6-(trifluoromethyl)-4-pyrones and 2-aryl-5-bromo-6-(trifluoromethyl)-4-pyrones has been developed on the basis of oxidative cyclization of ()-6-aryl-1,1,1-trifluorohex-5-ene-2,4-diones via a bromination/dehydrobromination approach. This strategy was also applied for the preparation of 2-phenyl-6-polyfluoroalkyl-4-pyrones and their 5-bromo derivatives. Conditions of chemoselective enediones bromination were found and the key intermediates of the cyclization of bromo-derivatives to 4-pyrones were characterized.