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Figure 3
Rows of ethyl 2-[(2-oxo-2H-chromen-6-yl)­oxy]acetate mol­ecules to both sides of, and in the same plane as, the centrosymmetric diads in Fig. 2[link]. These mol­ecules are related to those in the centrosymmetric dyads by a 21 operation, the position for one such axis being shown. This patterned arrangement is assisted by C8—H8⋯O1 and by C1—H1⋯O1 close contacts, in which the corresponding H8⋯O1 and H1⋯O1 distances are 2.27 and 2.61 Å. The symmetry transformation whereby one mol­ecule is converted to the other across these hydrogen bonds is −x + [{3\over 2}], y − [{1\over 2}], −z + [{3\over 2}]. Ellipsoids are shown at the 50% probability level.

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COMMUNICATIONS
ISSN: 2056-9890
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