@article {45740,
	title = {Mechanochemical synthesis of N-salicylideneaniline: thermosalient effect of polymorphic crystals},
	journal = {IUCRJ},
	volume = {4},
	year = {2017},
	month = {MAY},
	pages = {243-250},
	type = {Article},
	abstract = {<p>Polymorphs of the dichloro derivative of N-salicylideneaniline exhibit mechanical responses such as jumping (Forms I and III) and exploding (Form II) in its three polymorphs. The molecules are connected via the amide N-H center dot center dot center dot O dimer synthon and C-Cl center dot center dot center dot O halogen bond in the three crystal structures. A fourth high-temperature Form IV was confirmed by variable-temperature single-crystal X-ray diffraction at 180 degrees C. The behaviour of jumping exhibited by the polymorphic crystals of Forms I and III is due to the layered sheet morphology and the transmission of thermal stress in a single direction, compared with the corrugated sheet structure of Form II such that heat dissipation is more isotropic causing blasting. The role of weak C-Cl center dot center dot center dot O interactions in the thermal response of molecular crystals is discussed.</p>},
	keywords = {crystal design, crystal engineering, Halogen bonding, hydrogen bonding, intermolecular interactions, materials science, mechanochemistry, polymorphism},
	issn = {2052-2525},
	doi = {10.1107/S2052252517004043},
	author = {Mittapalli, Sudhir and Perumalla, D. Sravanakumar and Nangia, Ashwini}
}
