Research Article: 2-Methyl­sulfanyl-5,6-dihydro-2H-1,3-dithiolo[4,5-b][1,4]dioxin-2-ium tetra­fluoro­borate

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Guoquan Zhou, Xinzhi Chen.


The title compound, C6H7O2S3+·BF4−, consists of a planar 2-thioxo-1,3-dithiol-4,5-yl unit [maximum deviation from the ring plane = 0.020 (3) Å], with an ethyl­enedi­oxy group fused at the 4,5-positions; the ethyl­enedi­oxy C atoms are disordered over two positions with site-occupancy factors of 0.5. The 1,4-dioxine ring has a twist-chair conformation. Weak cation–anion S⋯F inter­actions [3.022 (4)–3.095 (4) Å] and an S⋯O [3.247 (4) Å] inter­action are present.

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For background on metal–organic coordination compounds, see: Chen et al. (2000 ▶); Xiong et al. (1999 ▶). For the preparation and crystal structure of a related compound, see: Han & Zhang (2010 ▶); Kanchanadevi et al. (2010 ▶).