Acta Crystallographica Section C

Crystal Structure Communications

Volume 59, Part 5 (May 2003)

Acta Cryst. (2003). C59, m171-m174 [doi:10.1107/S0108270103006462]

Two new dimeric cadmium(II) and zinc(II) sulfate complexes with 2,4,6-tris(2-pyridyl)-1,3,5-triazine and 2,2:6',2''-terpyridine

M. Harvey, S. Baggio, S. Russi and R. Baggio

Abstract: The structures of two new sulfate complexes are reported, namely di- [bold mu] -sulfato- [bold kappa] ³O,O':O''-bis{aqua[2,4,6-tris(2-pyridyl)-1,3,5-triazine-³N¹,N²,N⁶]cadmium(II)} tetrahydrate, [Cd₂(SO₄)₂(C₁₆H₁₂N₆)₂(H₂O)₂]·4H₂O, and di--sulfato-²O:O'-bis[(2,2':6',2''-terpyridine-³N¹,N^1',N^1'')zinc(II)] dihydrate, [Cd₂(SO₄)₂(C₁₅H₁₁N₃)₂]·2H₂O, the former being the first report of a Cd(tpt) complex [tpt is 2,4,6-tris(2-pyridyl)-1,3,5-triazine]. Both compounds crystallize in the space group P $\overline 1$ and form centrosymmetric dimeric structures. In the cadmium complex, the metal center is heptacoordinated in the form of a pentagonal bipyramid, while in the zinc complex, the metal ion is in a fivefold environment, the coordination geometry being intermediate between square pyramidal and trigonal bipyramidal. Packing of the dimers leads to the formation of planar structures strongly linked by hydrogen bonding.

Formula: [Cd₂(SO₄)₂(C₁₆H₁₂N₆)₂(H₂O)₂]·4H₂O and [Cd₂(SO₄)₂(C₁₅H₁₁N₃)₂]·2H₂O

Online 10 April 2003


	Structure factor file (CIF format) (196.5 kbytes) Contains datablock I

	Structure factor file (CIF format) (141.8 kbytes) Contains datablock II

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