CC BY-NC-ND 4.0 · Organic Materials 2021; 03(02): 374-380
DOI: 10.1055/a-1512-5965
Focus Issue: Supramolecular Optoelectronic Materials
Short Communication

Supramolecular Chirogenesis Engineered by Pt(II)···Pt(II) Metal–Metal Interactions

Chengpeng Wei
a   CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. of China)
,
Mingyang Liu
a   CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. of China)
,
Yifei Han
a   CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. of China)
,
Hua Zhong
a   CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. of China)
,
a   CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. of China)
› Author Affiliations
Funding Information This work was supported by the National Natural Science Foundation of China (21922110 and 21871245), the Fundamental Research Funds for the Central Universities (WK3450000005), and the CAS Youth Innovation Promotion Association (Y201986). The DFT computations were performed at the supercomputing center. We are grateful for the technical support from the High-Performance Computing Center of the University of Science and Technology of China.


Abstract

Supramolecular chirogenesis represents an effective way to induce chirality at the supramolecular level. For the previous host–guest chirogenic systems, metal–ligand coordination, hydrogen bonding, π–π stacking and hydrophobic interactions have been mainly employed as the non-covalent driving forces. In this study, Pt(II)···Pt(II) metal–metal interactions have been engineered to induce supramolecular chirogenesis, by forming non-covalent clipping structures between chiral platinum receptors and achiral platinum guests together. This results in the emergence of Cotton effects in the metal–metal-to-ligand charge transfer region, ascribed to chirality transfer from trans-1,2-diamide cyclohexane unit on chiral receptors to Pt(II)---Pt(II) non-covalent interacting sites. Supramolecular chirogenesis can be further transferred from organic to aqueous solutions, with higher resistance to concentration and temperature variations in the latter medium. Overall, the current study provides new avenues toward supramolecular chirality systems with tailored properties.

Supporting Information

Supporting Information for this article is available online at https://doi.org/10.1055/a-1512-5965.


Supporting Information



Publication History

Received: 22 March 2021

Accepted: 16 May 2021

Accepted Manuscript online:
19 May 2021

Article published online:
25 August 2021

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