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Analysis of 824 crystal structures containing the ethynyl group C—C![[triple bond]](/logos/entities/z-tbnd_rmgif.gif)
C—H shows that it acts as a hydrogen-bond donor or acceptor in 87% of those structures, and makes key contributions to crystal packing.
C—H shows that it acts as a hydrogen-bond donor or acceptor in 87% of those structures, and makes key contributions to crystal packing.research papers
Analysis of 770 structures containing chloroform and 919 structures containing dichloromethane shows that around 80% of both molecules use their acidic C—H protons in hydrogen-bond formation in crystal structures, but their Cl atoms would appear to make only a limited contribution to crystal aggregation.
