CobaltMaghrebV1, Main, Exploration, bibRecord, 000175

A one-dimensional polymeric cobalt(III)–potassium complex with 18-crown-6, cyanide and porphyrinate ligands

Identifieur interne : 000175 ( Main/Exploration ); précédent : 000174; suivant : 000176

A one-dimensional polymeric cobalt(III)–potassium complex with 18-crown-6, cyanide and porphyrinate ligands

Auteurs : Yassine Belghith [Tunisie] ; Hamza Toumi [Tunisie] ; Jean-Claude Daran [France] ; Habib Nasri [Tunisie]

Source :

Acta Crystallographica Section E: Structure Reports Online [ 1600-5368 ] ; 2014.

RBID : PMC:3998383

Abstract

The reaction of Co^II(TpivPP) {TpivPP is the dianion of 5,10,15,20-tetrakis[2-(2,2-dimethylpropanamido)phenyl]porphyrin} with an excess of KCN salts and an excess of the 18-crown-6 in chlorobenzene leads to the polymeric title compound catena-poly[[dicyanido-2κ²C-(1,4,7,10,13,16-hexaoxacyclooctadecane-1κ⁶O){μ₃-(2α,2β)-5,10,15,20-tetrakis[2-(2,2-dimethylpropanamido)phenyl]porphyrinato-1κO⁵:2κ⁴N,N′,N′′,N′′′:1′κO¹⁵}cobalt(III)potassium] dihydrate], {[CoK(CN)₂(C₁₂H₂₄O₆)(C₆₄H₆₄N₈O₄]·2H₂O}_n. The Co^III ion lies on an inversion center, and the asymmetric unit contains one half of a [Co^III(2α,2β-TpivPP)(CN)₂]⁻ ion complex and one half of a [K(18-C-6]⁺ counter-ion (18-C-6 is 1,4,7,10,13,16-hexaoxacyclooctadecane), where the K^I ion lies on an inversion center. The Co^III ion is hexacoordinated by two C-bonded axial cyanide ligands and the four pyrrole N atoms of the porphyrin ligand. The K^I ion is chelated by the six O atoms of the 18-crown-6 molecule and is further coordinated by two O atoms of pivalamido groups of the porphyrin ligands, leading to the formation of polymeric chains running along [011]. In the crystal, the polymeric chains and the lattice water molecules are linked by N—H⋯O and O—H⋯N hydrogen bonds, as well as weak C—H⋯O, O—H⋯π and C—H⋯π interactions into a three-dimensional supramolecular architecture.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3998383

DOI: 10.1107/S1600536814003596
PubMed: 24764938
PubMed Central: 3998383

Affiliations:

France, Tunisie

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<front><div type="abstract" xml:lang="en"><p>The reaction of Co<sup>II</sup>
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-(1,4,7,10,13,16-hexaoxacyclooctadecane-1κ<sup>6</sup>
<italic>O</italic>
){μ<sub>3</sub>
-(2α,2β)-5,10,15,20-tetrakis[2-(2,2-dimethylpropanamido)phenyl]porphyrinato-1κ<italic>O</italic>
<sup>5</sup>
:2κ<sup>4</sup>
<italic>N</italic>
,<italic>N</italic>
′,<italic>N</italic>
′′,<italic>N</italic>
′′′:1′κ<italic>O</italic>
<sup>15</sup>
}cobalt(III)potassium] dihydrate], {[CoK(CN)<sub>2</sub>
(C<sub>12</sub>
H<sub>24</sub>
O<sub>6</sub>
)(C<sub>64</sub>
H<sub>64</sub>
N<sub>8</sub>
O<sub>4</sub>
]·2H<sub>2</sub>
O}<sub><italic>n</italic>
</sub>
. The Co<sup>III</sup>
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(2α,2β-TpivPP)(CN)<sub>2</sub>
]<sup>−</sup>
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 ion lies on an inversion center. The Co<sup>III</sup>
 ion is hexacoordinated by two C-bonded axial cyanide ligands and the four pyrrole N atoms of the porphyrin ligand. The K<sup>I</sup>
 ion is chelated by the six O atoms of the 18-crown-6 molecule and is further coordinated by two O atoms of pivalamido groups of the porphyrin ligands, leading to the formation of polymeric chains running along [011]. In the crystal, the polymeric chains and the lattice water molecules are linked by N—H⋯O and O—H⋯N hydrogen bonds, as well as weak C—H⋯O, O—H⋯π and C—H⋯π interactions into a three-dimensional supramolecular architecture.</p>
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Serveur d'exploration sur le cobalt au Maghreb

A one-dimensional polymeric cobalt(III)–potassium complex with 18-crown-6, cyanide and porphyrinate ligands

A one-dimensional polymeric cobalt(III)–potassium complex with 18-crown-6, cyanide and porphyrinate ligands

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Abstract

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