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Crystal structure of di-?-hydroxido-?(4) O:O-bis[bis(acetyl-acetonato-?(2) O,O')cobalt(III)].

ABSTRACT: The dinuclear title complex, [Co2(C5H7O2)4(?-OH)2] or [Co(acac)2(?-OH)]2, where acac is acetyl-acetonate, is centrosymmetric with half of the mol-ecule per asymmetric unit. The mol-ecular structure is a dimer of octa-hedrally coordinated Co(III) atoms with four O atoms from two chelating acac ligands and two O atoms from bridging hydroxide ligands. The crystal packing features weak C-H?O inter-actions between neighboring mol-ecules, leading to the formation of chains normal to the ac plane. The hydroxide H atoms are not involved in hydrogen bonding because of the bulky acac ligands. This is the first crystal structure reported of a dimeric transition metal bis-acac complex with OH(-) as the bridging group.

SUBMITTER: Richers CP

PROVIDER: S-EPMC4571372 | biostudies-other | 2015 Aug

REPOSITORIES: biostudies-other

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Crystal structure of di-μ-hydroxido-κ(4) O:O-bis[bis(acetyl-acetonato-κ(2) O,O')cobalt(III)].

Richers Casseday P CP Bertke Jeffery A JA Rauchfuss Thomas B TB

Acta crystallographica. Section E, Crystallographic communications 20150729 Pt 8

The dinuclear title complex, [Co2(C5H7O2)4(μ-OH)2] or [Co(acac)2(μ-OH)]2, where acac is acetyl-acetonate, is centrosymmetric with half of the mol-ecule per asymmetric unit. The mol-ecular structure is a dimer of octa-hedrally coordinated Co(III) atoms with four O atoms from two chelating acac ligands and two O atoms from bridging hydroxide ligands. The crystal packing features weak C-H⋯O inter-actions between neighboring mol-ecules, leading to the formation of chains normal to the ac plane. The ...[more]

PMID: 26396771

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