cis,cis,cis-Dichloridobis(N 4,N 4-dimethylpyridin-4-amine-κN 1)bis(dimethyl sulfoxide-κS)ruthenium(II)

In the structure of the title compound, the Ru—N distances of the DMAP ligands are influenced by the trans chloride or dimethylsulfoxide-κS ligands.

A Schlenk flask was charged with 0.1 g (0.2 mmol) of Ru(dmso) 4 Cl 2 and 0.1 g (0.8 mmol) of DMAP, then combined with 20 ml of toluene.The flask was purged with N 2 and the solution heated at reflux for 2 h.After slowly cooling, 0.11 g (90%) of a light-yellow solid was isolated after filtering in air and washing with ethanol.Brown prisms were grown by vapor diffusion between toluene and a chloroform/toluene solution of the product.

Refinement
Crystal data, data collection and structure refinement details are summarized in Table 1.The crystal was treated as a twocomponent twin with scales of 0.9262 (9) and 0.0738 (9).Two of the terminal methyl groups were modeled for disorder using restrained distances (SADI; same distances with standard deviation of 0.02 A ˚) for S1-C15 and S1-C16, with parts A and B, restraining these carbon atoms with roughly equivalent anisotropic displacement parameters (SIMU; similar U ij components with standard deviation of 0.001 A ˚2), and summing the occupancies of each type of C to sum to one (FVAR and 1 -FVAR; Sheldrick, 2015b).

Funding information
Funding for this research was provided by: Welch Foundation (grant No. AD-0007 to the Chemistry Department); Jerry Taylor and Nancy Bryant Foundation (gift to the Austin College Science Division).RuCl 2 (C 7 H 10 N 2 ) 2 (C 2 H 6 OS) 2 ] IUCrData (2024).9, x240191

Special details
Refinement.Refined as a 2-component twin.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å
Park et al. � [

Figure 1
Figure 1Displacement ellipsoid (50% probability level) representation of the title complex with intramolecular H� � �O and H� � �Cl distances given (disorder and methyl hydrogen atoms omitted for clarity).

Table 1
Experimental details.