1-Ethyl-3,3-di-methyl-spiro-[indoline-2,8'-phenaleno[1,9- fg]chromene]

Abstract

The title pyrene-fused spiro-pyran derivative, C₃₀H₂₅NO, crystallizes with two mol-ecules in the asymmetric unit with dihedral angles between their fused-ring sub units of 76.20 (8) and 89.38 (9)°. In the crystal, weak C-H⋯π inter-actions link the mol-ecules into a three-dimensional network.

Keywords: crystal structure; packing; pyrene; spiro­pyran.