Cd(II)-coordination polymers with isophthalic acid bearing a hydroxyphenylazo group and substituted bis(imidazole) linkers
Polyhedron, cilt.182, 2020 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 182
- Basım Tarihi: 2020
- Doi Numarası: 10.1016/j.poly.2020.114481
- Dergi Adı: Polyhedron
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chimica
- Anahtar Kelimeler: Cd(II)-coordination polymer, Hydroxyphenylazoisophthalate, Substituted bis(imidazole) ligand, Hydrogen bonded structure
- Kırklareli Üniversitesi Adresli: Evet
Özet
Four Cd(II) coordination polymers, formulated as {(H2betib)2[Cd(μ-Hpdia)2]·H2O·MeOH·dmf}n (1), {[Cd(μ-Hpdia)(μ-bipib)]·dmf}n (2), [Cd(μ-Hpdia)(H2O)2(μ-betix)0.5]n (3) and [Cd(μ3-Hpdia)(MeOH)(μ-bipix)0.5]n (4) (Hpdia: 5-(4-hydroxyphenylazo)isophthalate, betib or bipib: 1,4-bis(2-x-imidazol-1-yl)butane, betix or bipix: 1,4-bis((2-x-imidazol-1-yl)methyl)benzene where x = ethyl- or isopropyl-) were synthesized under the same solvothermal conditions with 5-(4-hydroxyphenylazo)isophthalic acid and flexible or semi-flexible substituted bis(imidazole) linkers, and characterized by elemental analysis, IR spectroscopy, single crystal X-ray diffraction and thermal analysis methods. X-ray analysis results demonstrated that compounds 1–4 displayed 1D, 2D and 3D structures. In 1, the flexible betib ligand was protonated and the 2D structure formed by Hpdia was extended by hydrogen bonding to a 3D supramolecular network with the rtw topology. The hydrogen-bonded structure of 2 displayed a two-fold 3D → 3D interpenetrated supramolecular network with the tcj/hc topology. Compounds 3 and 4, synthesized using semi-flexible bis(imidazol) ligands, exhibited 1D and 3D frameworks, respectively. The thermal, optical and photoluminescence properties of the compounds were also investigated.