Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 5 (May 2004)

fg1744 scheme

Acta Cryst. (2004). C60, m227-m230 [doi:10.1107/S0108270104007796]

Two furopyridine complexes of nickel(II) isothiocyanate

J. Miklovic, A. Krutosíková and P. Baran

Abstract: Pyridine fused with a furan ring (fupy), and its dimethyl derivative, have been used for the first time as ligands to synthesize potentially new Werner clathrates. The extended aromatic system of pyridine-like ligands influences considerably the molecular structure of prepared nickel complexes. The molecular structure of tetrakis(furo[3,2-c]pyridine)bis(isothiocyanato)nickel(II) tetrahydrofuran (THF) solvate, [Ni(NCS)₂(C₇H₅NO)₄]·C₄H₈O or [Ni(NCS)₂(fupy)₄]·THF, (I), reveals a `four-blade propeller' arrangement of ligands, with the angles between the fupy planes and the basal octahedron plane spanning the range 38.7-55.3°. These angles are much larger (69.9-78.8°) in the centrosymmetric complex tetrakis(2,3-dimethylfuro[3,2-c]pyridine)bis(isothiocyanato)nickel(II) 6.6-hydrate, [Ni(NCS)₂(C₉H₉NO)₄]·6.6H₂O or [Ni(NCS)₂(Me₂fupy)₄]·6.6H₂O, (II), in which crystallographically imposed inversion symmetry is present.

Formula: [Ni(NCS)₂(C₇H₅NO)₄]·C₄H₈O and [Ni(NCS)₂(C₉H₉NO)₄]·6.6H₂O

Online 30 April 2004


	Structure factor file (CIF format) (362.7 kbytes) Contains datablock I

	Structure factor file (CIF format) (234.2 kbytes) Contains datablock II

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