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Trichloroacetyl) indole has been synthesized by the reaction of indole with trichloroacetyl chloride in 73% yield, and its crystal structure was determined by X-ray diffraction method. The crystal is of orthorhombic, space group Pnma with a = 20.781(7), b = 6.857(2), c = 7.431(3) ?, V = 1058.8(6) ?3, Z = 4, Mr = 262.51, Dc = 1.647 g/cm3, λ = 0.71073 ?, μ(MoKα) = 0.833 mm? and F(000) = 528. The structure was refined to R = 0.0286 and wR = 0.0749 for 1073 1 observed reflections with I > 2σ(I). It exhibits a characteristic plane structure consisting of all atoms except Cl(2) and Cl(2)A. Two kinds of intermolecular hydrogen bonds are formed: N(1)– H(8A)…O(1) and N(1)–H(8A)…Cl(1). There also exist three kinds of π-π stacking in the crystal.
Trichloroacetyl) indole has been synthesized by the reaction of indole with trichloroacetyl chloride in 73% yield, and its crystal structure was determined by X-ray diffraction method. The crystal is of orthorhombic, space group Pnma with a = 20.781 (7), b = 6.857 (2), c = 7.431 (3) ?, V = 1058.8 (6)? 3, Z = 4, Mr = 262.51, Dc = 1.647 g / cm3,? = 0.71073? and F (000) = 528. It shows a characteristic plane structure consisting of all the atoms except Cl (2) and F (000) = 528. The structure was refined to R = 0.0286 and wR = 0.0749 for 1073 1 observed reflections with I> 2σ Cl (2) A. Two kinds of intermolecular hydrogen bonds are formed: N (1) - H (8A) ... O (1) and N of π-π stacking in the crystal.