Solid-state structures of group IIIb metal chloride adducts with 2,2',2''-terpyridyl

The chemistry of the s- and p-block elements with 2,2′:6′,2′′-terpyridine ligands

“…14a. 153,157 Similar to Walton's report on [Tl (tpy)Cl 3 ], these complexes revealed poor conductivity when dissolved in aprotic solvents (e.g., MeCN or MeNO 2 ), thus, the halide ligands were strongly bound to the metal center; whereas, the bis-complexes behaved as 1 : 3 electrolytes in these solvents, indicative for the formation of dissociated complex cations and anions. As one notable exception, the reaction of GaI 3 with 4′-phenyl-tpy afforded a complex with a penta-coordinate, distorted pentagonal-bipyramidal [Ga(4′-Phtpy)I 2 ] + cation; 176 presumably, the trans-effect in concert with steric crowding prevented the coordination of the third I − ligand to give the expected [Ga(tpy)]I 3 complex.…”

Synthesis and characterization of complexes of aluminum halide with 2,2'-bipyridine, 1,10-phenanthroline and 2,2',2''-terpyridine in acetonitrile

“…d 1:1 adducts of A1X3derpy (X = Cl, Br) have been prepared in acetonitrile. 24 at about the same frequency as for bpy and phen, it is possible to demonstrate shifts to higher frequency with tridentate chelation of terpy to the metal. Table II includes the absorptions of free 2,2/,2"-terpyridine in these regions as well as those of the complexes.…”

Alleviation of π–π* Transition Enabling Enhanced Luminescence in Emerging TpyInClx (x = 3, 5) Perovskite Single Crystals

“…Trans-influence refers to the metal complexes with a center of symmetry in the geometry, the ligand has the effect of destabilizing the other ligand in the anti-position, which may lead to the deformation in bond length and bond angle. [33,34] Herein, the [InN 3 Cl 3 ] pseudo-octahedra exhibit a Jahn-Teller distortion, which is ascribed to the trans-influence by shortening the bond distance of the InN (2.2678 Å) and InCl (2.3926 Å) bonds compared to the non-trans bonds (Figure 1d). This deformation is due to the fact that the Tpy ligand accepts the electron of metal In to form a π back binding.…”