(+)-Chlorido[(1,2,3,4-η;κP 2′)-2′-diphenylphosphanyl-2-diphenylphosphoryl-1,1′-binaphthyl]rhodium(I) methanol monosolvate

In the title complex, [RhCl(C44H32OP2)]·CH3OH, the RhI ion is coordinated by a naphthyl group of a partially oxidized 2,2′-bis(diphenylphosphanyl)-1,1′-binaphthyl (BINAP) ligand in a η4 mode, one P atom of the diphenylphosphanyl group and one Cl atom. The P=O group does not interact with the RhI ion but accepts an O—H⋯O hydrogen bond from the methanol solvent molecule.

In the title complex, [RhCl(C 44 H 32 OP 2 )]ÁCH 3 OH, the Rh I ion is coordinated by a naphthyl group of a partially oxidized 2,2 0bis(diphenylphosphanyl)-1,1 0 -binaphthyl (BINAP) ligand in a 4 mode, one P atom of the diphenylphosphanyl group and one Cl atom. The P O group does not interact with the Rh I ion but accepts an O-HÁ Á ÁO hydrogen bond from the methanol solvent molecule.

Related literature
For general synthetic aspects of related compounds, see: Bunten et al. (2002). For related structures of rhodium complexes with BINAP and bisphosphine diolefin, see:

Experimental
Crystal data [RhCl(C 44 Table 1 Hydrogen-bond geometry (Å , ).  In the title complex, the Rh I atom is η 4 -coordinated to one of the binaphthyl moieties of the partially oxidized BINAP ligand but not to the O atom. Coordination to O atom is instead observed in the complex [Rh(BINAP(O))(CO)Cl] described by Bunten et al. (2002). This complex has a square-planar geometry with a CO ligand located trans to the O atom. The Rh-P distance of 2.1988 (10) Å in the title complex is by more than 0.1 Å shorter than that in the typical BINAP-rhodium complexes [2.304 (2)-2.335 (2) Å] (Preetz et al., 2010;Tani et al., 1985) (Bunten et al., 2002). An O-H···O hydrogen bond between the methanol solvent molecule and the complex molecule is observed (Table 1).
[Rh(BINAP)(µ 2 -Cl)] 2 (0.015 g, 0.01 mmol) and MAC (0.219 g, 1 mmol) were dissolved in 15 ml MeOH and stirred for 6 h under hydrogen. Crystals of the title compound were isolated after two days from the reaction solution, which contained residual traces of oxygen.

Data collection
Stoe IPDS-2 diffractometer Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus Graphite monochromator Detector resolution: 6.67 pixels mm -1 ω scans Absorption correction: numerical (X-SHAPE and X-RED; Stoe & Cie, 2002) T min = 0.787, T max = 0.953 10887 measured reflections 6247 independent reflections 5695 reflections with I > 2σ(I)  (17) Special details Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > σ(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.