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Molecular structure of (A) 2,2′,3,5′,6-pentachlorobiphenyl (15b), (B) 2,2′,3,5′,6-pentachloro-4-methoxy-biphenyl (16b), (C) 2,2′,3,4′,6-pentachloro-5-methoxy-biphenyl (17a) and (D) 2,2′,3,4′,5′,6-hexachloro-5-methoxy-biphenyl (17d) showing the atom labeling scheme. Displacement ellipsoids are drawn at the 50% probability level.
