Synthesis, crystal structure, physico-chemical characterization and theoretical study of a new Pb(II) complex [C10H22N2]3·PbCl5·3Cl·3H2O

Advancing nonlinear optics: discovery and characterization of new non-centrosymmetric phenazine-based halides

“…This feature bears resemblance to the structural motif identified in the reported [C 10 H 22 N 2 ] 3 PbCl 5 ·3Cl·3H 2 O. 34 Moreover, the crystals present two distinct types of hydrogen bonding interactions with the 1-[PbCl 3 ] − and 2-[PbCl 3 ] − units, with bond lengths of 2.117 Å and 2.315 Å, respectively (Fig. S3a and S3d†).…”

Down and up conversion luminescence of the lead-free organic metal halide material: (C9H8NO)2SnCl6·2H2O

“…This emission band is unambiguously associated with the electronic π-π * transition within the organic cations. We should also point out that in previous studies on tin chloride-based materials, 36,58 in particular on Cs 2 SnCl 6 57 , the PL spectrum is characterized by a wide emission band around our hybrid material, this band is not observed. This can be explained by the fact that these excitons are quenched by the energy and charge transfer process that can occur between the SnCl 6 octahedra and the [HQ] organic cations (RET).…”

“…As far as we know, only few works have investigated the optical and optoelectronic properties of hybrid metal halides based on SnCl 6 framework. 35,36 In the present work, we will focus on a new lead-free material [HQ] 2 SnCl 6 .2H 2 O. The study of photoluminescence under variable excitations shows an intense green luminescence band around 497 nm which appears under both UV excitation (down conversion luminescence) and under infrared excitation (up conversion luminescence).…”