Synthesis, crystal structure and vibrational spectroscopic analysis of tetrakis(5-amino-1-H-1,2,4-triazol-4-ium) decachlorodibismuthate(III):[C2H5N4]4Bi2Cl10

Synthesis of a New Chloro Antimony Complex with Pyridinium Derivative: Crystal Structure, Hirshfeld Surface Analysis, Vibrational, and Optical Properties

The new organic–inorganic hybrid material (C6H7N2S)2[SbCl4]Cl was synthesized by slow evaporation method and characterized by single-crystal X-ray diffraction, infrared absorption, Hirshfeld surface analysis, optical absorption and photoluminescence measurements. The Centro symmetric compound crystallizes in the triclinic system of space group $${\text{P}}\bar{1}$$P1¯ with two formula units cell (Z = 2).The crystal structure is composed of a discrete [SbCl4]− anion and two isolated chloride Cl− anions which carried the same negative charge to balance the total charge of this compound surrounded by the 4 pyridiniumethioamide cations. Organic and inorganic parts which are linked by means of hydrogen bonding contacts N–H···Cl with N···Cl length are varied in the range of 3.221–3.456 Å to form a Zero-dimensional network. The infrared study performed at room temperature charge in the 4000–400 cm−1 frequency regions confirms the existence of the organic cation [C6H7N2S]+ and that of the [SbCl4]− anion. The Photoluminescence spectrum exhibits a broad and strong band of luminescence located at 1.95 eV (635 nm), which can be even observed with the naked eye at room temperature and is due to exaction emission. The various intermolecular interactions of the two independent cations and six chloride atoms were examined via Hirshfeld surface analysis.

Synthesis, crystal structure and Hirshfeld surface analysis of a polymeric bismuthate(III) halide complex, (C6H6N3)2[BiCl5]·2H2O

The structure of this new halide-bridged polymer comprises polyanionic zigzag chains of formula [(BiCl₅)²⁻]_n running along the c-axis direction. The 1,2,3-benzotriazolium cations are linked between these polymer chains, via the water mol­ecules, giving rise to left- and right-handed helical chains.

The synthesis and the crystal structure of a new halide-bridged polymer, namely catena-poly[bis­(1,2,3-benzotriazolium) [[tetra­chlorido­bis­muth(III)]-μ-chlorido] dihydrate], {(C₆H₆N₃)₂[BiCl₅]·2H₂O}_n are reported. The structure comprises polyanionic zigzag chains of formula [(BiCl₅)²⁻]_n running along the c-axis direction. The 1,2,3-benzotriazolium cations are linked between these polymer chains, via the water mol­ecules, giving rise to left- and right-handed helical chains. Hirshfeld surface analysis and fingerprint plots were used to decode the inter­molecular inter­actions in the crystal network and determine the contribution of the component units for the construction of the three-dimensional architecture.