In:
Acta Crystallographica Section E Structure Reports Online, International Union of Crystallography (IUCr), Vol. 70, No. 7 ( 2014-07-01), p. 9-13
Abstract:
The title compounds, [Co 2 (C 8 H 11 BrO 3 )(CO) 6 ], (1), and [Co 2 (C 12 H 16 Br 2 O 4 )(CO) 6 ], (2), result from the replacement of two carbonyl ligands from dicobalt octacarbonyl by the alkynes 4-hydroxybut-2-ynyl 2-bromo-2-methylpropanoate and but-2-yne-1,4-diyl bis(2-bromo-2-methylpropanoate), respectively. Both molecules have classic tetrahedral C 2 Co 2 cluster cores with the Co II atoms in a highly distorted octahedral coordination geometry. The alkyne ligands both adopt a cis -bent conformation on coordination. In the crystal structure of (1), classical O—H...O and non-classical C—H...O contacts form inversion dimers. These combine with weak O...O and Br...O contacts to stack the molecules into interconnected columns along the b -axis direction. C—H...O and C—H...Br contacts stabilize the packing for (2), and a weak Br...O contact is also observed. Interconnected columns of molecules again form along the b- axis direction.
Type of Medium:
Online Resource
ISSN:
1600-5368
DOI:
10.1107/S1600536814009659
DOI:
10.1107/S1600536814009659/hb0001sup1.cif
DOI:
10.1107/S1600536814009659/hb00011sup2.hkl
DOI:
10.1107/S1600536814009659/hb00012sup3.hkl
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2014
detail.hit.zdb_id:
2843762-7
detail.hit.zdb_id:
2041947-8
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