Crystal structure, thermal and fluorescence properties of 2,2′:6′,2′′-terpyridine-1,1′,1′′-triium tetrachloridonickelate(II) chloride

Acta Crystallographica Section E: Crystallographic Communications

Jean Claude Daran¹  Ouahida Zeghouan²  Hocine Merazig²  Lamia Bendjeddou² 

[1] Laboratoire de Chimie de Coordination, UPR-CNRS 8241, 205 route de Narbonne, 31077 Toulouse Cedex 4, France;Unité de Recherche Chimie de l'Environnement et Moléculaire, Structurale, 'CHEMS', Faculté des Sciences Exactes,Campus Chaabet Ersas, Université, Frères Mentouri Constantine 1, 25000 Constantine, Algeria;

关键词: crystal structure;    nickel(II) complex;    terpyridinium cation;    protonation;    hydrogen bonds;    fluorescence;   

DOI  :  10.1107/S2056989017016784

来源: DOAJ

【 摘 要 】

The title compound, (C15H14N3)[NiCl4]Cl, comprises an NiII cation tetrahedrally coordinated by four chloride anions, a non-coordinating chloride anion and an essentially planar terpyridinium trication (tpyH33+), in which the central pyridinium ring forms dihedral angles of 5.7 (2) and 6.0 (2)° with the peripheral pyridinium rings. Three inter-species N—H...Cl hydrogen bonds are formed with the Cl− anion, which also forms a link between the (tpyH33+) cations through an aromatic C—H...Cl interaction, forming a zigzag chain extending along the 21 (b) screw axis. Two of the anionic Cl atoms of the [NiCl4]2− anions form Ni—Cl...π interactions with separate pyridinium rings [Ni...Cg = 3.669 (3) and 3.916 (4) Å]. In the crystal, successive undulating inorganic and organic layers are formed, extending across the (100) plane. Thermogravimetric and differential thermal analysis (TGA/DTA) indicate that the compound starts to decompose at 313 K and may be a candidate for use as a blue-light luminescent material.

【 授权许可】

Unknown