Acta Cryst. (2007). E63, m2878  [ doi:10.1107/S1600536807053354 ]

[Hydridotris(pyrazol-1-yl)borato-³N,N',N''][5,10,15,20-tetrakis(4-methylphenyl)porphyrinato-⁴N,N',N'',N''']samarium(III) toluene 1.75-solvate

H. He, G. He and S. W. Ng

Abstract: In the title complex, [Sm(C₉H₁₀BN₆)(C₄₈H₃₆N₄)]·1.75C₇H₈, there are two independent complex molecules in the asymmetric unit, in each of which the Sm^III ion is coordinated by seven N atoms, four from a (4-methylphenyl)porphyrinate ligand and three from a hydridotris(pyrazol-1-yl)borate ligand, to form a capped trigonal-prismatic geometry. The Sm^III ion is `sandwiched' between two ligands and is located 1.2647 (13) and 1.2549 (14)Å from the porphyrin ring in the two complex molecules. The asymmetric unit also contains 3.5 molecules of toluene, the half-occupancy molecule being located close to a crystallographic inversion center. The porphyrin groups have `dome'-like geometries.

Online 7 November 2007

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