Two Pairs of Homochiral Coordination Polymers with Helices Based on Semi‐rigid Lactic Acid Ligands

Abstract

Utilizing semirigid lactic acid derivatives (R)‐H2CBA and (S)‐H2CBA as chiral ligands, two pair of homochiral coordination polymers formulated as [Zn((R)‐CBA)(1,4‐DIB)]·H2O (1‐D), [Zn((S)‐CBA)(1,4‐DIB)]·H2O (1‐L), [Co((R)‐CBA)(1,4‐DIB)]·H2O (2‐D) and [Co((S)‐CBA)(1,4‐DIB)]·H2O (2‐L) were prepared under solvothermal reaction condition. Single X‐ray diffraction study reveals that all the complexes are comprised of three kinds of helical chains, which are constructed by corresponding metal ions, CBA2– ligands, and/or 1,4‐DIB ligands. Moreover, some physical characteristics, such as PXRD, thermal stabilities, solid‐state circular dichroism (CD), luminescent and magnetic properties are also investigated.

Semi‐conductive Chiral MOFs with Helixes Based on Lactic Acid Derivatives for Photo‐catalytic Reaction

“…Single crystal structural data of 1‐ R and 1‐ S were obtained on a Rigaku 003 CCD diffractometer with a Mo−Kα radiation ( λ =0.71073 Å). Their structures were solved via SHELXT‐2017 program and refined with SHELXL‐2017 by full‐matrix least‐squares techniques on Olex2‐1.2 software [35–36] . All non‐hydrogen atoms were refined anisotropically, and the hydrogen ones attached to parent atoms were generated with theoretical calculations.…”

Synthesis, Structures, and Photoluminescence Properties of Five Novel Zinc(II) and Cadmium(II) Coordination Polymers based on Different Zwitterionic Pyridine Ligands

“…Zwitterionic pyridine ligands are one of the intensely studied topics in rational designing and constructing coordination polymers (CPs) and they are of great interest owing to their intriguing frameworks and potential application as functional materials in magnetism, optical properties, drug delivery, gas storage, and chemical separation . In the formation of CPs, molecular self‐assembly of metal ions and organic ligands, especially polycarboxylate ligands based on the principle of crystal engineering has proved to be an efficient approach . Using various coordination tendencies of metal ions, multidentate organic ligands and mixed ligands are helpful in the construction of a diverse topology of architectures .…”