Coordination Chemistry. In their Research Article (e202205371), Peter Coburger, Hansjörg Grützmacher et al. report (IPr)2C2P2 as a flexible ligand to iron carbonyl fragments, giving access complexes of the general formula [Fe(CO)x{(IPr)2C2P2}]n+. Redox events involve either metal ion or C2P2 ligand. Graphic design: Dr. Christoph Selg and Luise Coburger.

Abstract Hydrothermal synthesis, crystal structure and properties of a new heterometallic coordination polymer [(VO(terpy)) 4 (MoO ) 2 (Mo 8 O 26 )]·2H ( 1 (terpy = 2,2′;6′,2″-terpyridine) are reported. Compound contains two crystallographically unique vanadium(IV) atoms, bonded to terminal oxido ligand further coordinated terpy ligand. The three N atoms occupy the meridional sites distorted {V...

Abstract An improved chemical process has been developed for the synthesis of (S,S)-DACH-Ph Trost ligand. The amidation 2-diphenylphosphinylbenzoic acid and (S,S)-diaminocyclohexane is promoted by stoichiometric CDI catalytic imidazole hydrochloride. resulting product, ligand, isolated as a white solid in 80% yield with >99% ee simple filtration without column chromatography. current facile ...

The benchmarking of the performance for H2 evolution cobalt diimine-dioxime catalysts is provided based on a comprehensive study their catalytic mechanism. latter follows an ECE'CC pathway with intermediate formation Co(II)-hydride and second protonation possibly at basic site ligand, acting as proton relay. This suggests intramolecular coupling between hydride protonated ligand concentration-i...

A new tetradentate N2O2 Schiff base ligand (MeO-bph)2bn = N,N¢-bis(2-hydroxy-4-methoxybenzophenone)-1,4-butanediamine was prepared from the condensation of butane-1,4-diamine with 4-methoxy-2-hydroxybenzophenone and characterized by 1H-NMR spectroscopy and single-crystal X-ray diffraction. Its nickel(II) and copper(II) complexes characterized usin...

The interaction between hydronium ion and several crown ethers was studied via conductometry in nitromethane at 25 °C and 1H-NMR techniques. The stabilities of the resulting 1:1 complexes were determined from the conductance data and found to vary in the order DC18C6 > 18C6 > DB30C10 > DB24C8 > DB18C6 > ~B15C5 > DB21C7. For the first time, evidences for the formation of a 2:1 san...

Some new coordination compounds of tin(IV) having general formula [SnBu2 (L)2 ] (where L = carbohydrazone ligand) have been synthesized by the reaction of dibutyltin oxide with carbohydrazone ligands with the ratio of 1:2 (metal- ligand) using dry benzene as a reaction medium. The newly synthesized complexes were characterized by elemental analysis, molecular weight determinations, conductivity...