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Abstract
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The crystal structure of tert-butyl coumarin.3-carboxylate has been determined. This compound crystallizes in the triclinic space group P-1 with cell parameters a = 5.8038(9) A, b, = 9.3022(16) A, c = 12.421(2) A, β= 97.107(5)°, V= 610.71(17 A3, Dcalc= 1.339 mg m-3, and Z = 2. The final R valte is 0.0593 for 2396 reflections. The adjacent molecules form a cyclic dimer by intermolecular hydrogen bonds of type C=O … H with their carbonyl group and the hydrogen on C(3).
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