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Effects of θ1–θ3 on the dependencies of 1JC1′,C2′ (A) and 2JC2′,H1′ (B) on ϕ in 2. For each plot: black line, reference state; green dots, rotamer VII; green line, rotamer IX; blue dots, rotamer X; blue line, rotamer XII; red dots, rotamer XIII; red line, rotamer XV. For the definitions of rotamers and reference states, see Schemes S1–S3, Supporting Information.
