Acta Crystallographica Section C

Crystal Structure Communications

Volume 59, Part 6 (June 2003)

metal-organic compounds

Acta Cryst. (2003). C59, m228-m230 [ doi:10.1107/S0108270103008722 ]

Cobalt(II) and nickel(II) complexes of quinoline-2-carboxylate

N. Okabe and Y. Muranishi

Abstract: The title complexes, trans-diaquabis(quinoline-2-carboxylato- [kappa] ²N,O)cobalt(II)-water-methanol (1/2/2), [Co(C₁₀H₆NO₂)₂(H₂O)₂]·2CH₄O·2H₂O, and trans-diaquabis(quinoline-2-carboxylato- [kappa] ²N,O)nickel(II)-water-methanol (1/2/2), [Ni(C₁₀H₆NO₂)₂(H₂O)₂]·2CH₄O·2H₂O, are isomorphous and contain Co^II and Ni^II ions at centers of inversion. Both complexes have the same distorted octahedral coordination geometry, and each metal ion is coordinated by two quinoline N atoms, two carboxylate O atoms and two water O atoms. The quinoline-2-carboxylate ligands lie in trans positions with respect to one another, forming the equatorial plane, with the two water ligands occupying the axial positions. The complex molecules are linked together by hydrogen bonding involving a series of ring patterns which include the uncoordinated water and methanol molecules.

Formula: [M(C₁₀H₆NO₂)₂(H₂O)₂]·2CH₄O·2H₂O (M = Co and Ni)


	Structure factor file (CIF format) (142.2 kbytes) Contains datablock I

	Structure factor file (CIF format) (140.7 kbytes) Contains datablock II

Notes:

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.