Saab, Marina published the artcileStraightforward access to chalcogenoureas derived from N-heterocyclic carbenes and their coordination chemistry, Formula: C27H39ClN2, the publication is Dalton Transactions, database is CAplus and MEDLINE.
Chalcogen-based urea compounds supported by a wide range of N-heterocyclic carbenes were synthesized and fully characterized. Coordination of selenoureas is further explored with Group 11 transition metals to form new copper, gold and silver complexes. Single crystal x-ray analyses unambiguously establish the solid-state coordination of these complexes and show that the geometry of a complex is highly influenced by a combination of electronic properties – mainly π-accepting ability – and steric hindrance of the ligands, as well as the nature of the metal, affording a variety of coordination behaviors. The authors study these phenomena using several exptl. methods.
Dalton Transactions published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, Formula: C27H39ClN2.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem