title: Influence of anellation in N-heterocyclic carbenes: novel quinoxaline-anellated NHCs trapped as transition metal complexes.
abstract: The synthesis, NMR-, and crystal structure data of novel electron-deficient quinoxaline anellated imidazol-2-ylidene precursors and complexes thereof are reported and compared with related less electron-withdrawing or non-anellated N-heterocyclic carbenes and complexes to illustrate anellation effects.
authors.affiliation: Institut für Chemie und Biochemie, Ernst-Moritz-Arndt-Universität Greifswald, 17487 Greifswald, Germany.
authors.forename: Shanmuganathan
authors.initials: S
authors.lastname: Saravanakumar
authors.forename: Markus K
authors.initials: MK
authors.lastname: Kindermann
authors.forename: Joachim
authors.initials: J
authors.lastname: Heinicke
authors.forename: Martin
authors.initials: M
authors.lastname: Köckerling