Notes. Crystal and molecular structure of [AsPh4][Ru(DL-MeSeCH2CH2SeMe)Cl4]

Abstract

The structure of the title complex has been determined by single-crystal X-ray diffraction. The complex belongs to the space group P2₁/a(Z= 4) and the data has been refined to R= 0.042 from 4 073 reflections [F > 3σ(F)]. The complex contains [AsPh₄]⁺ cations and pseudo-octahedral cis[Ru(DL-MeSeCH₂CH₂SeMe)Cl₄]^– anions [Ru–Se 2.446(1), 2.457(1); Ru–Cl(trans Se) 2.386(2), 2.404(2); Ru–Cl(trans Cl) 2.344(2), 2.353(2)Å]. The diselenoether adopts the DL conformation, and is the first example of this invertomer to be structurally characterised.