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Open Access 4-(4-Hydroxyphenyl)-2,2,4-trimethyl-7,8-benzothiachroman, a fused-ring counterpart of thia-Dianin's compound

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The title compound, C22H22OS [systematic name: 4-(1,3,3-trimethyl-2,3-dihydro-1H-4-thiaphenanthren-1-yl)phenol], crystallizes unsolvated from nitromethane as colourless prisms (m.p. 425–427 K) in the polar monoclinic space group Ia with Z′ = 2 (molecules A and B). Both independent molecules possess a very similar proximal conformation, this referring to the juxtaposition of the 4-hydroxyphenyl substituent with respect to the syn-related methyl group. In the crystal, molecule A is linked to molecule B by an O—H...O hydrogen bond. In turn, molecule B exhibits a weak O—H...π interaction with the phenolic group of molecule A related by a-glide symmetry. Together, these lead to [100] chains.
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Document Type: Research Article

Affiliations: 1: Wolfson Centre for Materials Processing, Brunel University London, Kingston Lane, Uxbridge UB8 3PH, England 2: School of Chemistry, University of Glasgow, Glasgow G12 8QQ, Scotland

Publication date: January 1, 2017

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