Abstract
Dinuclear complexes of rhodium and iridium with 4,5-dicarboxyimidazole (H3dcbi) and 4,5-dicarboxy-2-methylimidazole (H3dcbmi) are reported. In each case, the bridging carboxyimidazole ligand binds as the trianion. The auxiliary ligands are cycle-octa-1,5-diene(cod), carbon monoxide, and triphenylphosphine. The CO complexes, such as [NR4][(OC) 2Ir(dcbi)Ir(CO)2] which contains a planar dinuclear anion, exhibit strong colours which are caused by intermolecular stacking interactions and which are modulated by the counter cation. The X-ray crystal structure of [NBu4][(cod)Rh(dcbi)Rh(cod)]·2PriOH is described.
Original language | English |
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Pages (from-to) | 3003-3007 |
Journal | Journal of the Chemical Society, Dalton Transactions |
Issue number | 12 |
DOIs | |
Publication status | Published - 1 Jan 1987 |