Abstract
A malononitrile derivative, 6-Amino-5,5,7-tricyano-3,3a,4,5-tetrahydro-2H-indene-4- Spirocyclopentane was synthesized in ethanol with malononitrile and cyclopentanone as raw materials. It was characterized by X-ray single crystal diffraction analysis.The crystal of the title complex belongs to Triclinic, P21/c space group with a=6.4687(13)Å, b=8.9901(18)Å, c=12.004(2)Å, α=93.55(3) deg, β=91.86(3) deg, γ=92.25(3) deg. V=695.8(2)Å3, Z=2, F(000)=278 and final R1=0.0524,WR2=0.1497. X-ray analysis reveals that The cyclohexene ring has a distorted half-chair conformation and the cyclopentene and cyclopentane rings adopt envelope conformations. The dihedral angles between planar fragments of the cyclohexene and cyclopentene rings and of the cyclohexene and cyclopentane rings are 10.67 (7) and 87.33 (3)°, respectively. In the crystal, intermolecular N-HN hydrogen bonds link the molecules into infinite chains running in the [10] direction.
Published Version
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