(E)-4-[4-(Di-methyl-amino)-styr-yl]-1-methyl-pyridin-1-ium tetra-kis-[(Z)-4,4,4-tri-fluoro-3-oxo-1-(thio-phen-2-yl)but-1-en-1-olato]gadolinate(III) with an unknown amount of water as solvate

摘要

In the complex anion of the title salt, (C16H19N2)[Gd(C8H4F3S)4], the GaIII?cation is?O,O′-chelated by four anionic 4,4,4-tri-fluoro-3-oxo-1-(thio-phen-2-yl)but-1-en-1-olate ligands in a distorted square-anti-prismatic geometry; the 4-[4-(di-methyl-amino)-styr-yl]-1-methyl-pyridin-1-ium cation is nearly planar, with a dihedral angle of 9.6?(5)° between the planes of the pyridine and benzene rings. In the crystal, the cations are linked with the complex anions?via?weak C—H?F and C—H?π?inter-actions. Two of the four independent thio-phene rings are disordered over two sites; occupancies were refined to 0.662?(10):0.338?(10). The solvent water mol-ecules are highly disordered in a solvent-accessible void of 54?(3)??3; the diffuse electron densities were removed from the data set using SQUEEZE [Spek (2015).?Acta Cryst. C71, 9–16]. These solvent mol-ecules are not considered in the given chemical formula and other crystal data.