Crystal Research and Technology
Cryst. Res. Technol. 35 (2000) 1373 - Abstract -

A. Subbiah Pandi, D. Velmurugan, V. Raghu Kumar*, V. T. Ramakrishnan*, S. Shanmuga Sundararaj**, H.-K. Fun**

Department of Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, India
*Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai
**X-ray Crystallographic Unit, School of Physics, University Sains Malaysia, Malaysia

Crystal Structures of Two Biphenyl Compounds

The crystal structures of two biphenyl compounds 3-amino -2,4 dicyano - 3’,4’,5’ trimethoxy - 1,3 terphenyl (I) and 3-amino -2,4,dicyano -5- methyl - 4’-N,N diethyl amino biphenyl (II) are described here (CCDC NO. : 134369 & 134370). The title compounds C23H15N3O3 (I) and C19 H19N4 (II) crystallized in the centrosymmetric triclinic space group P-1 and non-centrosymmetric orthorhombic space group Fdd2 respectively. The unit cell parameters are : (I) a = 10.3555(2), b = 10.7103(2), c = 11.0096(0)Å, α = 64.1(0), β = 65.9(0), γ = 89.6(0)° ; Z=2 and (II) a = 23.0364(1), b = 37.2165(1), c = 7.7491(0)Å, α = β = γ = 90.0(0)°; Z=16. The R factors for compound (I) and (II) are 0.053 and 0.064 respectively.

Keywords: Biphenyl, terphenyl,photophysical, laser activity, biological activity


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