1
|
Ye T, Li Y, Shi Y, Che Y, Leng B, Wang S, Xiao J. π-Expanded [6]Helicene-Containing Nanographenes: Synthesis, Structures, and Chiroptical Properties. Org Lett 2024. [PMID: 39145660 DOI: 10.1021/acs.orglett.4c02273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
A family of chiral nanographenes bearing [6]helicene units has been synthesized via the classical Scholl reaction. Inserting the [6]helicene unit into the parent nanographene skeleton can result in different structural topologies and optoelectric properties. Moreover, the isolated enantiomers exhibit attractive chiroptical properties.
Collapse
Affiliation(s)
- Tongtong Ye
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yiming Li
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yi Che
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Bihan Leng
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Sujuan Wang
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding 071002, P. R. China
| |
Collapse
|
2
|
Adusei EBA, Casetti VT, Goldsmith CD, Caswell M, Alinj D, Park J, Zeller M, Rusakov AA, Kinney ZJ. Bent naphthodithiophenes: synthesis and characterization of isomeric fluorophores. RSC Adv 2024; 14:25120-25129. [PMID: 39139244 PMCID: PMC11318266 DOI: 10.1039/d4ra04850d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 07/26/2024] [Indexed: 08/15/2024] Open
Abstract
Thiophene-containing heteroarenes are one of the most well-known classes of π-conjugated building blocks for photoactive molecules. Isomeric naphthodithiophenes (NDTs) are at the forefront of this research area due to their straightforward synthesis and derivatization. Notably, NDT geometries that are bent - such as naphtho[2,1-b:3,4-b']dithiophene (α-NDT) and naphtho[1,2-b:4,3-b']dithiophene (β-NDT) - are seldom employed as photoactive small molecules. This report investigates how remote substituents impact the photophysical properties of isomeric α- and β-NDTs. The orientation of the thiophene units plays a critical role in the emission: in the α(OHex)R2 series conjugation from the end-caps to the NDT core is apparent, while in the β(Oi-Pent)R2 series minimal change is observed unless strong electron acceptors, such as β(Oi-Pent)(PhCF3)2, are employed. This push-pull acceptor-donor-acceptor (A-D-A) fluorophore exhibits positive fluorosolvatochromism that correlates with increasing solvent polarity parameter, E T(30). In total, these results highlight how remote substituents are able to modulate the emission of isomeric bent NDTs.
Collapse
Affiliation(s)
- Emmanuel B A Adusei
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Vincent T Casetti
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Calvin D Goldsmith
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Madison Caswell
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Drecila Alinj
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Jimin Park
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Matthias Zeller
- Department of Chemistry, Purdue University West Lafayette Indiana USA
| | - Alexander A Rusakov
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| | - Zacharias J Kinney
- Department of Chemistry, Oakland University Rochester Michigan USA +1-248-370-2347
| |
Collapse
|
3
|
Yang H, Chen G, Zhang R, Zhu Y, Xiao J. Coumarin-embedded [5]helicene derivatives: synthesis, X-ray analysis and photoconducting properties. NANOSCALE 2024; 16:5395-5400. [PMID: 38376253 DOI: 10.1039/d3nr05887e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Two novel coumarin-embedded π-extended [5]helicene derivatives (3a and 6a) have been strategically synthesized and characterized, and the structure of 3a was determined via single crystal X-ray analysis. Both of them exhibit green fluorescence in dichloromethane. In addition, molecule 3a can aggregate to form a large quantity of nanowires through the re-precipitation method. More importantly, the photoelectric conversion properties of 3a nanowire-C60 based films are much better than those of the thin film of bulk 3a-C60, indicating that the ordered nanostructures are a crucial factor for enhancing device performance.
Collapse
Affiliation(s)
- Hui Yang
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China.
| | - Guofeng Chen
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China.
| | - Ran Zhang
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China.
| | - Yanjie Zhu
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China.
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China.
| |
Collapse
|
4
|
Qi Z, Wang S, Ji B, Shang H, Ye T, Shi Y, Xiao J. Self-Assembly of Functionalized Twistarenes into Supramolecular Assemblies with Chiroptical Property and Photoconductive Behavior. Org Lett 2024; 26:781-785. [PMID: 38241637 DOI: 10.1021/acs.orglett.3c03854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
A pair of novel chiral 1-phenylethylamine-modified twistarenes (4 and 11; compound 4 = 9,14-di-tert-butyl-7,16-diphenyl-2-(1-phenylethyl)-1H-benzo[8',9']triphenyleno[2',3':6,7]fluoreno[2,1,9-def]isoquinoline-1,3(2H)-dione) have been synthesized and characterized, and how the solvent component affects the chirality transfer of their self-assembled processes is investigated in mixtures with THF and H2O. The ordered assembly of 11 exhibits circular dichroism response. In addition, both 11a and 11b display positive photoconducting behavior.
Collapse
Affiliation(s)
- Zewei Qi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Sujuan Wang
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Bingliang Ji
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Honglin Shang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Tongtong Ye
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
- Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding 071002, People's Republic of China
| |
Collapse
|
5
|
Ji B, Qi Z, Ye T, Li S, Shi Y, Cui S, Xiao J. Straightforward Synthesis of Pentagon-Embedded Expanded [11]Helicenes for Radiative Cooling Property. Chemistry 2024; 30:e202302893. [PMID: 37867144 DOI: 10.1002/chem.202302893] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/24/2023]
Abstract
Two new pentagon-embedded carbo[11]helicenes have been designed and synthesized in a three-step process, which are the first example of carbo[11]helicenes through the post-functionalization of twistacene. TD-DFT analyses indicate that both of them possess high enantiomerization barriers of 42.29 kcal/mol and 40.76 kcal/mol, respectively. They emit strong red fluorescence and can be chemically oxidized into stable cationic radicals upon addition of AgSbF6 evidenced by the bathochromic-shifted absorption spectra and the appearance of electronic paramagnetic resonance (EPR) signals. In addition, such helical derivatives can be chosen as radiative cooling materials in a glass model house, and the maxima of 5.4 °C for the former and 6.5 °C for the latter are found in the comparative tests, which might be caused by the NIR reflective response.
Collapse
Affiliation(s)
- Bingliang Ji
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Zewei Qi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Tongtong Ye
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Shuangxuan Li
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Shuang Cui
- Division of Analysis, SINOPEC (Beijing) Research Institute of Chemical Industry, Co. Ltd., Beijing, P. R. China
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| |
Collapse
|
6
|
Qi Z, Shang H, Ji B, Shi Y, Ye T, Li Y, Xiao J. Heptagon-Embedded Helicene Derivatives: Synthesis, Crystal Structural Analyses, and Circularly Polarized Luminescence. J Org Chem 2023; 88:14550-14558. [PMID: 37812747 DOI: 10.1021/acs.joc.3c01563] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Two pairs of isomers of heptagon-embedded helical arenes (3/6 and 10/13) have been strategically prepared, where the molecular structures of 3 and 13 have been identified through single crystal X-ray diffraction analysis. The effect of the heptagon unit on the physical properties of 3, 6, 10, and 13 is investigated in a comparative manner, and the results indicate that the optical enantiomers of 13 obtained from HPLC exhibit promising chiroptical properties.
Collapse
Affiliation(s)
- Zewei Qi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Honglin Shang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Bingliang Ji
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Tongtong Ye
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Yiming Li
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | | |
Collapse
|