Chlorido-(<i>η</i>⁶-<i>p</i>-cymene)-(bis(pyrazol-1-yl)methane-<i>κ</i>²<i>N</i>,<i>N</i>′)Osmium(II) Tetrafluoroborate, C₁₇H₂₂BClF₄N₄Os

Abstract

The powder of the arene osmium(II) complex, [Os(II)(dpzm)(η6-p-cym)Cl]BF4 (dpzm = di(1H-pyrazol-1-yl)methane; η6-p-cym = para-cymene), with a formula of C17H22BClF4N4Os (referred to herein as 1) was isolated from the reaction of [(η6-p-cym)Os(μ-Cl)(Cl)]2 with dpzm dissolved in acetonitrile and under a flow of nitrogen gas. It was characterized by spectroscopic techniques (viz., FTIR, 1H NMR, UV-Visible absorption). Yellow crystal blocks of 1 were grown by the slow evaporation from the methanolic solution of its powder. The single-crystal X-ray structure of 1 was solved by diffraction analysis on a Bruker APEX Duo CCD area detector diffractometer using the Cu(Kα), λ = 1.54178 Å as the radiation source, and 1 crystallizes in the monoclinic crystal system and the C2/c (no. 15) space group.

Keywords

• arene osmium(II) complex
• di(1<i>H</i>-pyrazol-1-yl)methane
• <i>para</i>-cymene
• piano stool geometry
• pseudo-octahedral geometry