Trefoiled Propeller-Shaped Spiral Terpyridyl Metal-Organic Architectures

Mingzhao Chen; Die Liu; Jian Huang; Yiming Li; Ming Wang; Kaixiu Li; Jun Wang; Zhilong Jiang; Xiaopeng Li; Pingshan Wang

doi:10.1021/acs.inorgchem.9b01701

Trefoiled Propeller-Shaped Spiral Terpyridyl Metal-Organic Architectures

Inorg Chem. 2019 Aug 19;58(16):11146-11154. doi: 10.1021/acs.inorgchem.9b01701. Epub 2019 Jul 30.

Authors

Mingzhao Chen¹, Die Liu¹, Jian Huang², Yiming Li³, Ming Wang⁴, Kaixiu Li², Jun Wang², Zhilong Jiang¹, Xiaopeng Li³, Pingshan Wang^{1

2}

Affiliations

¹ Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education , Guangzhou University , Guangzhou , 510006 , China.
² College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan , 410083 , China.
³ Department of Chemistry , University of South Florida , Tampa , Florida 33640 , United States.
⁴ State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , Jilin , 130012 , China.

PMID: 31361129
DOI: 10.1021/acs.inorgchem.9b01701

Abstract

Constructing exquisite and intricate molecular architectures is always the pursuit of chemists. In this report, the propeller-shaped trefoil structures S1 and S2 were successfully prepared by the stepwise self-assembly of predesigned tripodal metal-organic ligands, which consist of bis(terpyridine)s-Ru²⁺-tris(terpyridine)s connectivities for the following complexation with Fe²⁺. The complexes can be described as racemic spiral assemblies with three-fold spiralism. These unique discrete metal-organic architectures were fully characterized by ¹H NMR, 2D NMR spectroscopy (COSY and NOESY), diffusion-ordered NMR spectroscopy (DOSY), ESI-MS, TWIM-MS, and TEM, and their photophysical and electrochemical properties were also investigated. Further, hybrid trefoiled structure [Fe₃L1L2] was detected by taking advantage of the flexibility of metal-organic ligands.