An unusually stable octanuclear sigma-mesityl-bridged mu4-oxo-copper(I) complex encapsulated by a pyrazolate-based compartmental ligand scaffold.
A new compartmental pyrazole-derived chelating ligand, four equivalents of mesitylcopper and stoichiometric amounts of dioxygen lead to the formation of a remarkably stable organometallic framework that can be described as a heteroleptic O-centered cuprate anion [(MesCu(I))(4)(mu(4)-O)](2-) linked via sigma-mesityl-bridges to two surrounding binuclear Cu(I)-pyrazolate clamps.
Stollenz
Michael
M
Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, D-37077 Göttingen, Germany.
Grosse
Christian
C
Meyer
Franc
F