A ?-Chloro Dinuclear Ruthenium Complex with 9H-Carbazole: The Formation of One-Dimensional Linear Chains of Star-Shaped Edge-Fused Rings

Abstract

The title complex, di-μ-chloro-bis[chloro(η6-p-cymene) ruthenium(II)]-9H-carbazole (1/2), [Ru<inf>2</inf>Cl<inf>4</inf>(C <inf>10</inf>H<inf>14</inf>)<inf>2</inf>]-2C<inf>12</inf>H<inf>9</inf>N, is composed of one [RuCl<inf>2</inf>(η<inf>6</inf>-p-cymene)]2 and two 9H-carbazole molecules. There are one-half of a dinuclear complex and one 9/7-carbazole molecule per asymmetric unit. In the dinuclear complex, each of the two crystallographically equivalent Ru atoms is in a pseudo-tetrahedral environment, coordinated by a terminal Cl atom, two bridging Cl atoms and the aromatic hydrocarbon, which is linked in a η6 manner; the Ru⋯Ru separation is 3.688 (3) Å. The title complex has a crystallographic centre of symmetry located at the mid-point of the Ru⋯Ru line. Intermolecular N-H⋯Cl and π-π stacking interactions are observed. These interactions form a four-pointed star-shaped ring and one-dimensional linear chains of edge-fused rings running parallel to the [100] direction, which stabilize the crystal packing. © 2006 International Union of Crystallography.