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Figure 2 View of chelating/bridging to K+ ions by the sulfonic and phenolic hydroxy groups in the L2−anion, displacement ellipsoids are drawn at 30% probability level. [Symmetry codes: (ii) −x + 1, y + , −z + ; (iii) −x + 1, y − , −z + ; (v) −x + 1, −y, −z + 1; (viii) −x + 1, −y, −z (ix) x − 1, −y + , z − ; (x) x, −y + , z − ; (xi) x − 1, y, z]. |