14020

An Investigation of Z-in Distortion in Mononuciear Cu(II) Complex with Terpyridine Ligands,

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The first crystal structure of [Cu(terpy)zKPF6)2, where terpy=2,2י: 6י,2"-terpyridine is reported. Green crystals of [Cu(terpy)2](PF6)2 were grown by ether diffusion into an acetonitrile solution of the complex. Crystal structure of this complex is tetragonal (space group: P4 2jc) with a = 8,8916(3), c = 20.0214(13) A, and z = 2. The structure was refined by using 1828 independent reflections with I > 2a(I) to a R factor of 0.0809. The terpy ligands are tridentate and linked to the Cu(II) via three N atoms. The CuN6 entities have compressed octahedral geometry with the shortest Cu-N bonds that form the axial positions. This complex represents z-in distortion at 293K and has a D2