The head-to-tail dimerization of N-heterocyclic diazoolefins is described. products these formal (3+3) cycloaddition reactions are strongly reducing quinoidal tetrazines. Oxidation the tetrazines occurs in a stepwise fashion, and we were able to isolate stable radical cation diamagnetic dications. latter also accessible by oxidative diazoolefins.

Porphyrins and N-heterocyclic carbenes (NHCs) are both relevant ligands in the fields of coordination organometallic chemistry. Despite evident structural differences, porphyrins NHCs have a lot common such as their ability to form strong metal-ligand bonds use catalysis, materials science biomedicine. During last decade, several molecular systems combining NHC were reported literature. The pre...

N -tert -butyliminodiacetic acid (H2TEBIDA, compound 1) has been prepared and characterised by thermogravimetric analysis, FT-IR and NMR spectra, and X-ray crystallography (final R1 /0.04). The zwitterion H2TEBIDA 9 is intra -stabilised by a hydrogen bond, and H-bonded chains of zwitterions form supramolecular 2D bilayers with tert -Bu groups towards the external faces. Compounds [Cu(TEBIDA)(H2...

Controlling the reactivity and stability of graphene-supported Ru NPs by modifying their surface with pyrene-tagged N -heterocyclic carbene ligands.

Correction for ‘Advances in chemistry of N-heterocyclic carbene boryl radicals’ by Tsuyoshi Taniguchi, Chem. Soc. Rev. , 2021, DOI: 10.1039/d1cs00385b.

The reactions of nickel(0) complexes with phosphine, bipyridine-type, and N-heterocyclic carbene ligands aryl, vinyl, alkyl halides is reviewed.