ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Two polymorphs, α and γ, of the title compound, C22H20N2O2, have been characterized by means of single-crystal synchrotron X-ray diffraction. In the α form, the molecules pack in a herring-bone fashion, linked via weak C—H...N intermolecular interactions (H...N 2.58 Å). In the γ form, the molecules are arranged in nearly planar sheets, which form a network held together by intermolecular hydrogen bonds of the type C—H...O (H...O 2.49 Å) and C—H...N (H...N 2.50 Å). The stacking distance between the sheets is 3.40 Å.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270100010337
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