2,5‐Bis(methylthio)‐1,4‐benzoquinone and 2‐methyl‐3‐(methylsulfonyl)benzo[b]thiophene |
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Authors: | Masood Parvez Shaun T. Mesher Peter D. Clark |
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Abstract: | The structure of 2,5‐bis(methylthio)‐1,4‐benzoquinone, C8H8O2S2, is composed of an essentially planar centrosymmetric benzoquinone substituted with two methylthio groups. The important bond distances are S—Csp3 1.788 (2) and S—Csp2 1.724 (2) Å, and the two Csp2—Csp2 distances are 1.447 (3) and 1.504 (3) Å, which differ significantly. There are short S?S interactions of 3.430 (1) Å and Csp2—H?O‐type contacts forming a dimeric motif with graph set R22(8). The structure of 2‐methyl‐3‐(methylsulfonyl)benzo[b]thiophene, C10H10O2S2, is composed of an essentially planar benzothiophene moiety substituted with methyl and methylsulfonyl groups. The mean values of the important bond distances are endocyclic S—Csp2 1.734 (3), S=O 1.434 (4) and C—Caromatic 1.389 (10) Å. The exocyclic S—Csp2 and S—Csp3 distances are 1.759 (4) and 1.763 (5) Å, respectively. |
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