title: Giant, Hollow 2D Metalloarchitecture: Stepwise Self-Assembly of a Hexagonal Supramolecular Nut.
abstract: A polyterpyridinyl building block-based nutlike hexagonal bismetallo architecture with a central hollow Star of David was assembled by a stepwise strategy. This nanoarchitecture can be viewed as a recursive mathematical form that possesses a supramolecular corner-connected cyclic structure, i.e., a triangle or rhombus at various levels of scale or detail. The key metallo-organic ligand (MOL) with four uncomplexed free terpyridines was obtained by a final Suzuki cross-coupling reaction with a tetrabromoterpyridine Ru dimer. The molecular metallorhombus was prepared by reacting the MOL with a 60° bis-terpyridine and Fe(2+). The giant hollow hexagonal nut with a diameter of more than 11 nm and a molecular weight of ca. 33 kDa was obtained in near-quantitative yield by mixing the two types of multi-terpyridine ligands with Fe(2+). The supramolecular architecture was characterized by NMR ((1)H and (13)C), 2D NMR (COSY and ROESY), and DOSY spectroscopies, high-resolution electrospray ionization mass spectrometry, traveling-wave ion mobility mass spectrometry, and transmission electron microscopy.
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Yiming
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Zhilong
authors.initials: Z
authors.lastname: Jiang
authors.affiliation: Department of Chemistry and Biochemistry and Materials Science, Engineering, and Commercialization Program, Texas State University , San Marcos, Texas 78666, United States.
authors.forename: Ming
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Jie
authors.initials: J
authors.lastname: Yuan
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Die
authors.initials: D
authors.lastname: Liu
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Yang
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Mingzhao
authors.initials: M
authors.lastname: Chen
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Yan
authors.affiliation: Department of Chemistry and Biochemistry and Materials Science, Engineering, and Commercialization Program, Texas State University , San Marcos, Texas 78666, United States.
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Organic and Polymer Chemistry, College of Chemistry and Chemical Engineering, Central South University , Changsha, Hunan 410083, P. R. China.
authors.forename: Pingshan
authors.initials: P
authors.lastname: Wang