Chalcogen bonding in coordination chemistry

Crystal structure and Hirshfeld surface analysis of (E)-2-(4-bromophenyl)-1-[2,2-dibromo-1-(4-nitrophenyl)ethenyl]diazene

“…Both E/Z isomerism and azo-hydrazo tautomerism properties of azo dyes are key phenomena in the synthesis and development of new functional materials (Shixaliyev et al, 2018(Shixaliyev et al, , 2019. The attachment of non-covalent bond acceptor or donor centres to the azo dyes can be used as a synthetic strategy for the improvement of the functional properties of their metal complexes (Mahmudov et al, 2020(Mahmudov et al, , 2021(Mahmudov et al, , 2022. Thus, we have attached bromine atoms and a nitro group together with aryl rings to the -N N-linkage leading to a new azo compound,…”

Crystal structure and Hirshfeld surface analysis of 2-(4-amino-6-phenyl-1,2,5,6-tetrahydro-1,3,5-triazin-2-ylidene)malononitrile dimethylformamide hemisolvate

“…Moreover, triazines play an important role in photo-triggered structural switching, in the printing market, as ionophores, in the design of functional materials attributed to smart hydrogen bonding, in liquid crystals, self-assembled layers, semiconductors, as analytical reagents for the detection of metal ions, indicators, photoluminescent materials, catalysts, spin-coating films, and optical recording media (Blotny, 2006;Liu et al, 2019). Depending on the attached non-covalent bond donor or acceptor substituents, the functional properties of N-heterocyclic compounds and their metal complexes can be improved (Ma et al, 2020(Ma et al, , 2021Mahmudov et al, 2020Mahmudov et al, , 2021Mahmudov et al, , 2022. Substituted triazine derivatives can be synthesized by several different routes.…”

Crystal structure and Hirshfeld surface analysis of a new polymorph of (E)-2-(4-bromophenyl)-1-[2,2-dibromo-1-(3-nitrophenyl)ethenyl]diazene

“…The azo-to-hydrazo tautomerization as well as E/Z isomerization of azo dyes are key phenomena in the synthesis and design of new functional materials (Shixaliyev et al, 2013(Shixaliyev et al, , 2014. Moreover, an attachment of donor or acceptor centres of non-covalent bonds to the azo compounds can be applied as a synthetic strategy in the improvement of functional properties of their metal complexes (Mahmudov et al, 2020(Mahmudov et al, , 2021(Mahmudov et al, , 2022. Thus, we have attached bromine and nitro substituents to the aryl rings leading to a new azo dye, (E)-1-(2,2-dibromo-1-(3-nitrophenyl)vinyl)-2-(4-bromophenyl)diazene, which can participate in intermolecular halogen and hydrogen bonds as well as in -interactions.…”