Absolute helicity of 1D chains influenced by enantiopure ligands

作者：Gao, Xiang; Zhang, Hong-Hong; Lu, Zhi-Bin; Ou, Yong-Cong^*; Wu, Jian-Zhong

来源：Inorganic Chemistry Communications, 2017, 83: 7-10.

DOI：10.1016/j.inoche.2017.05.025

• Coordination
• Chiral induction
• Helical chains
• Camphoric acid
• Luminescence

Two novel coordination polymers, [Cd(D-1-Hcam)(nta)(H2O)](2)[Cd(D-3-Hcam)(nta)(H2O)(2)](2).4H(2)O (1) and [Cd(DL-Hcam)(nta)(H2O)(2)].H2O (2) (D-1-Hcam/D-3-Hcam = monodehydrated D-camphoric acid, Hnta = nic-otinic acid and DL-Hcam = monodehydrated in DL-camphoric acid), have been synthesized under hydrothermal conditions. Complex 1 is a three-dimensional hydrogen bonding framework composed of two kinds of 1D helical chains which exhibit the same right-handed helix, whereas complex 2 is constructed with one kind of 1D racemic chains. Interestingly, both two chiral molecules in the structures play important roles in the absolute helicity although they are not in the backbones of the helix which are made of rigid achiral ligands. Furthermore, different coordination modes of chiral ligands regulated the fluorescent emission.

• 出版日期2017-9