NickelMaghrebV1, Ncbi, Checkpoint, bibRecord, 000064

trans-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)

Identifieur interne : 000064 ( Ncbi/Checkpoint ); précédent : 000063; suivant : 000065

trans-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)

Auteurs : Fouad Bentiss [Maroc] ; Frédéric Capet [France] ; Michel Lagrenée [France] ; Mohamed Saadi [Maroc] ; Lahcen El Ammari [Maroc]

Source :

Acta Crystallographica Section E: Structure Reports Online [ 1600-5368 ] ; 2011.

RBID : PMC:3212138

Abstract

The bidentate 1,3,4-thiadiazole ligand, namely, 2,5-bis(2-pyridyl)-1,3,4-thiadiazole (denoted L), untested as a polydentate ligand, has been found to form the monomeric title complex, [Ni(C₁₂H₈N₄S)₂(H₂O)₂](BF₄)₂. The complex shows an octahedral environment of the nickel cation in which the Ni²⁺ ion is located on a center of symmetry, linked to two ligands and two water molecules. In this 1:2 complex (one metal for two organic ligands) each thiadiazole ligand uses one pyridyl and one thiadiazole N atom for chelate binding. In the second pyridyl substituent, the N atom is oriented towards the same direction as the S atom of the 1,3,4-thiadiazole ring. The mean plane of the thiadiazole and pyridyl rings linked to the nickel cation forms a dihedral angle with the other pyridine ring of 18.63 (8)°. The tetrafluoridoborate ions can be regarded as free anions in the crystal lattice. Nevertheless, they are involved in an infinite two-dimensional network parallel to (01) through O—H⋯F hydrogen bonds.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3212138

DOI: 10.1107/S1600536811026420
PubMed: 22090840
PubMed Central: 3212138

Affiliations:

France, Maroc

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PMC:3212138

Le document en format XML

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-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)</title>
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-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)</title>
<author><name sortKey="Bentiss, Fouad" sort="Bentiss, Fouad" uniqKey="Bentiss F" first="Fouad" last="Bentiss">Fouad Bentiss</name>
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<front><div type="abstract" xml:lang="en"><p>The bidentate 1,3,4-thiadiazole ligand, namely, 2,5-bis(2-pyridyl)-1,3,4-thiadiazole (denoted <italic>L</italic>
), untested as a polydentate ligand, has been found to form the monomeric title complex, [Ni(C<sub>12</sub>
H<sub>8</sub>
N<sub>4</sub>
S)<sub>2</sub>
(H<sub>2</sub>
O)<sub>2</sub>
](BF<sub>4</sub>
)<sub>2</sub>
. The complex shows an octahedral environment of the nickel cation in which the Ni<sup>2+</sup>
 ion is located on a center of symmetry, linked to two ligands and two water molecules. In this 1:2 complex (one metal for two organic ligands) each thiadiazole ligand uses one pyridyl and one thiadiazole N atom for chelate binding. In the second pyridyl substituent, the N atom is oriented towards the same direction as the S atom of the 1,3,4-thiadiazole ring. The mean plane of the thiadiazole and pyridyl rings linked to the nickel cation forms a dihedral angle with the other pyridine ring of 18.63 (8)°. The tetrafluoridoborate ions can be regarded as free anions in the crystal lattice. Nevertheless, they are involved in an infinite two-dimensional network parallel to (<inline-formula><inline-graphic xlink:href="e-67-m1052-efi1.jpg" mimetype="image" mime-subtype="gif"></inline-graphic>
</inline-formula>
01) through O—H⋯F hydrogen bonds.</p>
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	Serveur d'exploration sur le nickel au Maghreb
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Serveur d'exploration sur le nickel au Maghreb

trans-Diaqua­bis­[2,5-bis­(pyridin-2-yl)-1,3,4-thia­diazole]nickel(II) bis­(tetra­fluoridoborate)

trans-Diaqua­bis­[2,5-bis­(pyridin-2-yl)-1,3,4-thia­diazole]nickel(II) bis­(tetra­fluoridoborate)

Source :

Abstract

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trans-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)

trans-Diaquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole]nickel(II) bis(tetrafluoridoborate)