| Abstract
| - The organometalloligand (η4-o-benzoquinone)Mn(CO)3- readily forms the octahedral complexes illustrated. In the solid state these exist in two-dimensional networks generated by π−π stacking and interdigitation of bipyridine ligands (A) and π−π stacking of half of the benzoquinone rings (B).
- The complex (η6-catechol)Mn(CO)3+ is readily deprotonated to (η4-o-benzoquinone)Mn(CO)3-(o-QMTC), which functions as an organometalloligand toward divalent metal ions byσ-bonding through the quinone oxygen atoms. The ligand o-QMTC, together with 2,2‘-bipyridine or 1,10-phenanthroline (L−L), was found to produce the stable complexes M(o-QMTC)2(L−L) (M = Mn, Co, Cd). Crystal structures of Mn(o-QMTC)2(bipy), Co(o-QMTC)2(bipy), and Cd(o-QMTC)2(phen) revealed in each case a two-dimensional supramoleculararchitecture consisting of π−π stacking and interdigitation of the bipy or phen ligands, aswell as a pairwise π−π stacking of one of the two benzoquinone rings in each monomericunit to generate dimeric units.
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