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(a) ORTEP representation of the TPH·HMLA asymmetric unit with the atomic numbering scheme (the disorder of the O1 carbonyl atom is omitted for clarity; thermal ellipsoids are plotted at the 50% probability level). (b) 1D molecular ribbon composed of four-component aggregates along the [001] direction, in a view along the [41̅0] direction. (c) 3D structure showing adjacent ribbons of TPH·HMLA, in a view along the [001] direction.
