Ferroelectric Copper Quinine Complexes
Source abstract
Abstract
The reactions of quinine with Cu(I)Cl and Cu(I)Br afford Cu5Cl9(H2Quinine)2 (1) and Cu3Br7(H2Quinine)2(H2O) (2), respectively, with 1D polymeric structures. The anionic chain in 1 contains Cu4Cl62- adamantane-type aggregates that are linked to two identical units by CuCl32- bridges, and the Cu(I) centers in 2 have a distorted tetrahedral environment formed by bridging and terminal bromide ions. 1 is the first homochiral metal-organic coordination polymer exhibiting ferroelectric behavior.
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Research context
OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Crystal structures of chemical compounds · Crystallography and molecular interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Coordination Chemistry Institute, The State Key Laboratory of Coordination Chemistry, Nanjing University, 210093 Nanjing, People's Republic of China, School of Chemistry, University of Melbourne, Victoria 3010, Australia, Solid State Microstructure Laboratory, Department of Physics, Nanjing University, 210093 Nanjing, People's Republic of China, and Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996
References (29)
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20. Preparation of compound1. Hydrothermal treatment of CuCl (2.5 mmol), quinine (1 mmol), and 2 mL of HCl (4 N) in MeOH (1 mL) for 3 days at 60 °C afford ca. 0.4 mmol (40% yield based on quinine) of pale-yellow plate crystals of1. Anal. Calcd for C20H26Cl4.5N2O2Cu2.5: C, 37.22; H, 4.03; N, 4.34. Found: C, 37.31; H, 4.09; N, 4.42. IR (KBr, cm-1): 3449 (br s), 2951 (m), 1619 (w), 1599 (s), 1541 (w), 1496 (m), 1423 (m), 1384 (m), 1268 (s), 1243 (s), 1146 (w), 1121 (m), 1024 (m), 925 (w), 837 (m), 800 (w), 717 (w), 634 (w). Preparation of compound2. The procedure is identical to that of1except that CuBr and HBr (4 N) were used in place of CuCl and HCl, respectively. The brown-red block crystals were obtained with 45% yield based on quinine. Anal. Calcd for C20H27Br3.5N2O2.5Cu1.5: C, 33.78; H, 3.80; N, 3.94. Found: C, 33.86; H, 3.89; N, 4.05. IR (KBr, cm-1): 3449 (br s), 2951 (m), 1619 (w), 1599 (s), 1541 (w), 1496 (m), 1423 (m), 1384 (m), 1268 (s), 1243 (s), 1146 (w), 1121 (m), 1024 (m), 925 (w), 837 (m), 800 (w), 717 (w), 634 (w).
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