Crystal structure of the 1,2-dihydro-4H-thieno [2,3-c] benzo[e]pyran-4-one, C11H8O2S

The title compound C 11 H 8 O 2 S (I) crystallizes in space group C2/c: a = 11.468(4) A, b = 8.767(1) A, c = 19.249(6) A, β = 107.20(2)°; V = 1848.6(1.4) A 3 ; Z = 8, D x = 1466 kg m -3 ; Cu Kα = 1.542 A, μ = 27 cm −1 ; F(000) = 848; T = 293(1) K; Conventional R = 0.10 = R w for 1594 unique reflections