Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 1 (January 2002)

Acta Cryst. (2002). C58, m17-m20 [doi:10.1107/S0108270101018807]

Bis(pyridine-2,6-dimethanol-N,O,O')cobalt(II) and -copper(II) disaccharinate dihydrate: three-dimensional structures with extensive hydrogen bonds and aromatic --stacking interactions

O. Andac, S. Guney, Y. Topcu, V. T. Yilmaz and W. T. A. Harrison

Abstract: Bis(pyridine-2,6-dimethanol-N,O,O')cobalt(II) disaccharinate dihydrate, [Co(C₇H₉NO₂)₂](C₇H₄NO₃S)₂·2H₂O, (I), and bis(pyridine-2,6-dimethanol-N,O,O')copper(II) disaccharinate dihydrate, [Cu(C₇H₉NO₂)₂](C₇H₄NO₃S)₂·2H₂O, (II), collectively [M(dmpy)₂](sac)₂·2H₂O (where M is Co^II or Cu^II, sac is the saccharinate anion and dmpy is pyridine-2,6-dimethanol), are isostructural. The [M(dmpy)₂]²⁺ cations exhibit distorted octahedral geometry in which the two neutral dmpy species act as tripodal N,O,O'-tridentate ligands. The crystal packing is determined by hydrogen bonding, as well as by weak pyridine-saccharinate [bold pi] --stacking interactions.

Formula: [Co(C₇H₉NO₂)₂](C₇H₄NO₃S)₂·2H₂O and [Cu(C₇H₉NO₂)₂](C₇H₄NO₃S)₂·2H₂O

Online 14 December 2001


	Structure factor file (CIF format) (445.5 kbytes) Contains datablock I

	Structure factor file (CIF format) (436.1 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.