TY - JOUR
T1 - Structure and spectroscopic properties of the dimeric copper(I) N-heterocyclic carbene complex [Cu2(CNCt-Bu)2](PF6)2
AU - Riener, Korbinian
AU - Pöthig, Alexander
AU - Cokoja, Mirza
AU - Herrmann, Wolfgang A.
AU - Kühn, Fritz E.
N1 - Publisher Copyright:
© 2015 International Union of Crystallography.
PY - 2015/8/1
Y1 - 2015/8/1
N2 - In recent years, the use of copper N-heterocyclic carbene (NHC) complexes has expanded to fields besides catalysis, namely medicinal chemistry and luminescence applications. In the latter case, multinuclear copper NHC compounds have attracted interest, however, the number of these complexes in the literature is still quite limited. Bis[μ-1,3-bis(3-tert-butylimidazolin-2-yliden-1-yl)pyridine]-1κ4 C 2,N:N,C 2′;2κ4 C 2,N:N,C 2′-dicopper(I) bis(hexafluoridophosphate), [Cu2(C19H25N5)2](PF6)2, is a dimeric copper(I) complex bridged by two CNC, i.e. bis(N-heterocyclic carbene)pyridine, ligands. Each CuI atom is almost linearly coordinated by two NHC ligands and interactions are observed between the pyridine N atoms and the metal centres, while no cuprophilic interactions were observed. Very strong absorption bands are evident in the UV-Vis spectrum at 236 and 274 nm, and an emission band is observed at 450 nm. The reported complex is a new example of a multinuclear copper NHC complex and a member of a compound class which has only rarely been reported.
AB - In recent years, the use of copper N-heterocyclic carbene (NHC) complexes has expanded to fields besides catalysis, namely medicinal chemistry and luminescence applications. In the latter case, multinuclear copper NHC compounds have attracted interest, however, the number of these complexes in the literature is still quite limited. Bis[μ-1,3-bis(3-tert-butylimidazolin-2-yliden-1-yl)pyridine]-1κ4 C 2,N:N,C 2′;2κ4 C 2,N:N,C 2′-dicopper(I) bis(hexafluoridophosphate), [Cu2(C19H25N5)2](PF6)2, is a dimeric copper(I) complex bridged by two CNC, i.e. bis(N-heterocyclic carbene)pyridine, ligands. Each CuI atom is almost linearly coordinated by two NHC ligands and interactions are observed between the pyridine N atoms and the metal centres, while no cuprophilic interactions were observed. Very strong absorption bands are evident in the UV-Vis spectrum at 236 and 274 nm, and an emission band is observed at 450 nm. The reported complex is a new example of a multinuclear copper NHC complex and a member of a compound class which has only rarely been reported.
KW - catalysis
KW - crystal structure
KW - dimeric copper(I) N-heterocyclic carbene complex
KW - spectroscopic properties
UR - http://www.scopus.com/inward/record.url?scp=84992748456&partnerID=8YFLogxK
U2 - 10.1107/S2053229615012140
DO - 10.1107/S2053229615012140
M3 - Article
AN - SCOPUS:84992748456
SN - 2053-2296
VL - 71
SP - 643
EP - 646
JO - Acta Crystallographica Section C: Structural Chemistry
JF - Acta Crystallographica Section C: Structural Chemistry
ER -