|
1
|
Wang L, Song B, Li Y, Gong L, Jiang X, Wang M, Lu S, Hao XQ, Xia Z, Zhang Y, Hla SW, Li X. Self-Assembly of Metallo-Supramolecules under Kinetic or Thermodynamic Control: Characterization of Positional Isomers Using Scanning Tunneling Spectroscopy. J Am Chem Soc 2020; 142:9809-9817. [PMID: 32311259 PMCID: PMC7375329 DOI: 10.1021/jacs.0c03459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Coordination-driven self-assembly has been extensively employed to construct a variety of discrete structures as a bottom-up strategy. However, mechanistic understanding regarding whether self-assembly is under kinetic or thermodynamic control is less explored. To date, such mechanistic investigation has been limited to distinct, assembled structures. It still remains a formidable challenge to study the kinetic and thermodynamic behavior of self-assembly systems with multiple assembled isomers due to the lack of characterization methods. Herein, we use a stepwise strategy which combined self-recognition and self-assembly processes to construct giant metallo-supramolecules with 8 positional isomers in solution. With the help of ultrahigh-vacuum, low-temperature scanning tunneling microscopy and scanning tunneling spectroscopy, we were able to unambiguously differentiate 14 isomers on the substrate which correspond to 8 isomers in solution. Through measurement of 162 structures, the experimental probability of each isomer was obtained and compared with the theoretical probability. Such a comparison along with density functional theory (DFT) calculation suggested that although both kinetic and thermodynamic control existed in this self-assembly, the increased experimental probabilities of isomers compared to theoretical probabilities should be attributed to thermodynamic control.
Collapse
Affiliation(s)
- Lei Wang
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Bo Song
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Yiming Li
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Lele Gong
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Xin Jiang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China
| | - Shuai Lu
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Zhenhai Xia
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Yuan Zhang
- Nanoscience and Technology Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Physics, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Saw Wai Hla
- Nanoscience and Technology Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| |
Collapse
|
|
2
|
Lee J, Park S, Kim D, Lee YA, Jung OS. Hexafluorosilicate anion in the formation of a coordination cage: anion competition. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01581g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The construction of a coordination cage in a system of dual anions including hexafluorosilicate was investigated. Significant catalytic effects on catechol oxidation catalysis performance ranks among the most efficient yet recorded.
Collapse
Affiliation(s)
- Jeyeong Lee
- Department of Chemistry
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Seonghyeon Park
- Department of Chemistry
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Dongwon Kim
- Department of Chemistry
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Young-A Lee
- Department of Chemistry
- Jeonbuk National University
- Jeonju 54896
- Korea
| | - Ok-Sang Jung
- Department of Chemistry
- Pusan National University
- Busan 46241
- Republic of Korea
| |
Collapse
|
|
3
|
Liu ZM. The crystal structure of 2,6-bis(pyridin-1-ium-3-ylmethyl)hexahydro-4,8-ethenopyrrolo-[3,4- f] isoindole-1,3,5,7-tetrone tetrachloridocuprate(II) monohydrate, C 24H 24Cl 4CuN 4O 5. Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2019-0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C24H24Cl4CuN4O5, orthorhombic, P212121 (no. 19), a = 11.8748(12) Å, b = 13.3493(13) Å, c = 16.4721(17) Å, V = 2611.2(5) Å3, Z = 4, R
gt(F) = 0.0351, wR
ref(F
2) = 0.0873, T = 173(2) K.
Collapse
Affiliation(s)
- Zhi-Min Liu
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P.R. China
| |
Collapse
|