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Title: Crystal structure of 4-p-hydroxyphenyl-2,2,4-trimethyl-7,8- benzothiachroman: a fused-ring counterpart of thia-Dianin's compound.
Authors: Frampton, CS
McKendrick, JJ
MacNicol, DD
Issue Date: 2017
Citation: Acta Crystallographica Section E
Abstract: Abstract The title compound, C22H22OS [systematic name 4-(1,3,3-tri­methyl-2,3-di­hydro-1H-4-thia- phenanthren-1-yl)-phenol] crystallizes unsolvated from nitro­methane as colourless prisms m.p. 152–154 °C, 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 p-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··· inter­action with the phenolic group of molecule A related by a-glide symmetry. Together, these lead to [100] chains.
ISSN: 1600-5368
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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