کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1329539 | 1500085 | 2015 | 9 صفحه PDF | دانلود رایگان |
• Solvent induced synthesis of three coordination polymers with 1D zig-zag structure.
• Crystal structures of coordination polymers are reported and discussed.
• 1,10-Phenanthroline influences magnetic and luminescent properties of polymers.
• Coordination polymer of Cd is luminescent exhibiting large Stokes shift.
Three new coordination polymers [Mn(hip)(phen) (H2O)]n (1), [Co(hip)(phen) (H2O)]n (2), and [Cd(hip) (phen) (H2O)]n (3) (H2hip=5-hydroxyisophthalic acid; phen=1,10-phenanthroline) have been synthesized by solvo-hydrothermal method using diethyl formamide-water (DEF-H2O) as solvent system. Single-crystal X-ray diffraction analysis reveals that all three coordination polymers 1, 2 and 3 crystallize in monoclinic space group P2/n. Metal ions are inter-connected by hydroxyisophthalate anions forming zig-zag 1D chain. 1D chains are further inter-connected by hydrogen bonding and π–π stacking interactions leading to 3D supramolecular architecture. Hydrogen-bonding and π–π stacking provide thermal stability to polymers. Compounds 1 and 2 are paramagnetic at room temperature and variable temperature magnetic moment measurements revealed weak ferromagnetic interactions between metal ions at low temperature. Compound 3 exhibits excellent photoluminescence with large Stokes shift.
1D helical chains of coordination polymers were synthesized by solvo-hydrothermal reaction of 5-hydroxyisopthalic acid and 1,10-phenanthroline with MnCl2·4H2O / CoCl2·6H2O / Cd(NO3)2·6H2O.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 231, November 2015, Pages 239–247