Acta Crystallographica Section C

Crystal Structure Communications

Volume 57, Part 7 (July 2001)

organic compounds

 

10-(4-Fluorophenyl)-3,3,6,6,9-pentamethyl-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione and 10-(4-fluorophenyl)-3,3,6,6-tetramethyl-9-propyl-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione

A. Subbiah Pandi, D. Velmurugan, S. Shanmuga Sundara Raj, H.-K. Fun, P. R. Seshadri and D. Thirumalai

Abstract: 10-(4-Fluorophenyl)-3,3,6,6,9-pentamethyl-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione, C₂₄H₂₈FNO₂, (I), crystallizes with two crystallographically independent molecules (which differ slightly in conformation), while 10-(4-fluorophenyl)-9-propyl-3,3,6,6-tetramethyl-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione, C₂₆H₃₂FNO₂, (II), crystallizes with one molecule per asymmetric unit. In both structures, the central ring in the acridine moiety is in a sofa conformation, while the outer rings adopt intermediate half-chair/sofa conformations. The central pyridine ring is orthogonal to the substituted phenyl ring. In both structures, the packing of the crystal is stabilized by C-HO intermolecular hydrogen bonds.

Formula: C₂₄H₂₈FNO₂ and C₂₆H₃₂FNO₂

	Structure factor file (CIF format) (515.8 kbytes) Contains datablock I
	Structure factor file (CIF format) (214.4 kbytes) Contains datablock II

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