1
|
Turlakov G, Arias E, Moggio I, Rodríguez G, Ziolo RF, Rodríguez-Fernández OS, Mikhaylov A, Uudsemaa M, Cooper T, Rebane A. Photophysical and Electrochemical Properties of Push-Pull Oligo(ferrocenyl-phenyleneethynylene)s: Supramolecular Orders in Molecular Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4077-4089. [PMID: 35316062 DOI: 10.1021/acs.langmuir.2c00121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report on the optoelectronic properties of a series of unsymmetrical π-conjugated phenyleneethynylene macromolecules bearing ferrocene (Fc) as the electron-donor group (D), (benzyl) benzoate (Bz) or benzoic acid (Ac) as the electron attractor group (A) and connected through 2,5-di(alcoxy) phenyleneethynylene(s) (nPE) with n = 1, 2, 3 as π-conjugated bridges. In the series, by increasing the distance between the electron-attracting and electron-donor groups, the push-pull effect decreases. The intramolecular charge transfer (D → π → A) was evaluated by static and dynamic spectroscopy, electrochemistry, and density functional theory (DFT) theoretical calculations. The longest oligomer Fc3PEBz formed the best optical quality films. A study at the atomic level by scanning tunneling microscopy (STM) revealed that the molecules self-assemble on highly ordered pyrolytic graphite (HOPG) in domains with a short-range order. Films are mesoporous and the molecules arrange in a lamellar-like pattern, with an edge-on conformation with respect to HOPG, where the conjugated backbones lie parallel to the surface. Two different assemblies were identified in the monoatomic film, which depends on the ferrocene-ferrocene or benzyl-benzyl interactions.
Collapse
Affiliation(s)
- Gleb Turlakov
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna 140, Saltillo 25294, México
| | - Eduardo Arias
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna 140, Saltillo 25294, México
| | - Ivana Moggio
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna 140, Saltillo 25294, México
| | - Geraldina Rodríguez
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna 140, Saltillo 25294, México
| | - Ronald F Ziolo
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna 140, Saltillo 25294, México
| | | | - Alexander Mikhaylov
- Physics Department, Montana State University, Bozeman, Montana 59717, United States
| | - Merle Uudsemaa
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Thomas Cooper
- Materials and Manufacturing Directorate, Air Force Research Laboratory, 3005 Hobson Way, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Aleksander Rebane
- Physics Department, Montana State University, Bozeman, Montana 59717, United States
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| |
Collapse
|
2
|
Zhang W, Xu W, Ma C, Li Y. Synthesis of ferrocene-based polysubstituted pyrrolidines. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02560-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
3
|
Concepción García M, Turlakov G, Moggio I, Arias E, Valenzuela JH, Hernández M, Rodríguez G, Ziolo RF. Synthesis and photophysical properties of conjugated (dodecyl)benzoateethynylene macromolecules: staining ofBacillus subtilisandEscherichia colirhizobacteria. NEW J CHEM 2019. [DOI: 10.1039/c8nj05892j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The staining of agrobacteria was successfully demonstrated through a benzoateethynylene by fluorescence spectroscopy, laser confocal microscopy and microRaman.
Collapse
Affiliation(s)
- Ma. Concepción García
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - Gleb Turlakov
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - Ivana Moggio
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - Eduardo Arias
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - J. Humberto Valenzuela
- CONACYT-Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - Mónica Hernández
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - Geraldina Rodríguez
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| | - Ronald F. Ziolo
- Centro de Investigación en Química Aplicada
- Boulevard Enrique Reyna 140
- 25294 Saltillo
- Mexico
| |
Collapse
|