title: From trigonal bipyramidal to platonic solids: self-assembly and self-sorting study of terpyridine-based 3D architectures.
abstract: Using a series of tritopic 2,2':6',2″-terpyridine (tpy) ligands constructed on adamantane, three discrete 3D metallo-supramolecular architectures were assembled, i.e., trigonal bipyramidal, tetrahedron, and cube. The self-assembly used tritopic ligands as corner directing units and metal ions as glue units at the edge. The angles of the linkers between adamantane and tpy head play a critical role in guiding the assembled structures, which have the general formula of M3nL2n, where M denotes metal ion and L denotes ligand. All complexes were fully characterized by (1)H, (13)C NMR, diffusion-ordered NMR spectroscopy, ESI-MS, and traveling-wave ion mobility-mass spectrometry. The binary mixtures of LA and LC or LB and LC underwent a self-sorting process that led to the self-assembly of discrete 3D structures. The self-sorting behavior is solely based on the angles precoded within the arm of tritopic ligands. Moreover, kinetic study of preassembled cube and tetrahedron demonstrated a slow ligand exchange process toward a statistical mixture of hetero tetrahedrons with LA and LB.
authors: Department of Chemistry and Biochemistry, Texas State University , San Marcos, Texas 78666, United States.
authors: Ming
authors: M
authors: Wang
authors: Chao
authors: C
authors: Wang
authors: Xin-Qi
authors: XQ
authors: Hao
authors: Xiaohong
authors: X
authors: Li
authors: Tyler J
authors: TJ
authors: Vaughn
authors: Yan-Yan
authors: YY
authors: Zhang
authors: Yihua
authors: Y
authors: Yu
authors: Zhong-Yu
authors: ZY
authors: Li
authors: Mao-Ping
authors: MP
authors: Song
authors: Hai-Bo
authors: HB
authors: Yang
authors: Xiaopeng
authors: X
authors: Li
mesh_terms: D000218:Adamantane / Q000737:chemistry*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D055668:Photochemical Processes; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013499:Surface Properties
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D011725:Pyridines; D000218:Adamantane