Chemistry Letters, Vol.30, No.6, 532-533, 2001
One-dimensional zigzag chain structures with intermolecular C-H center dot center dot center dot pi and C-H center dot center dot center dot O interactions consisted of phthalic acid and pyridine derivatives
Crystal structures of co-crystals of phthalic acid with 4,4 ' -bipyridine or 4,4 ' -dipyridylacetylene contain one-dimensional zigzag chains connected by intermolecular O-H . . .N hydrogen bonds and edge-to-face packing of phthalic acid and pyridine rings stabilized by intermolecular C-H . . . pi and C-H . . .O interactions.