Crystal structure, thermal and fluorescence properties of 2,2':6',2''-terpyridine-1,1',1''-triium tetra-chlorido-nickelate(II) chloride.

ABSTRACT: The title compound, (C₁₅H₁₄N₃)[NiCl₄]Cl, comprises an Ni^II cation tetra-hedrally 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 inter-action, 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?? inter-actions 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.

SUBMITTER: Zeghouan O 

PROVIDER: S-EPMC5730256 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature