<em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>]
In this paper we report an<em> in situ</em> electrochemical Sum-/Difference Frequency Generation (SFG/DFG) spectroscopy investigation of the adsorption of nitrile and CN<sup>−</sup> from the ionic liquid 1-butyl-1-methyl-pyrrolidinium bis(trifl...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2012-06-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1420-3049/17/7/7722 |
| _version_ | 1818930376846868480 |
|---|---|
| author | Benedetto Bozzini Bertrand Busson Audrey Gayral Christophe Humbert Claudio Mele Catherine Six Abderrahmane Tadjeddine |
| author_facet | Benedetto Bozzini Bertrand Busson Audrey Gayral Christophe Humbert Claudio Mele Catherine Six Abderrahmane Tadjeddine |
| author_sort | Benedetto Bozzini |
| collection | DOAJ |
| description | In this paper we report an<em> in situ</em> electrochemical Sum-/Difference Frequency Generation (SFG/DFG) spectroscopy investigation of the adsorption of nitrile and CN<sup>−</sup> from the ionic liquid 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide ([BMP][TFSA]) containing 4-{2-[1-(2-cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]- diazenyl}benzonitrile (CTDB) at Au electrodes in the absence and in the presence of the Au-electrodeposition process from K[Au(CN)<sub>2</sub>]. The adsorption of nitrile and its coadsorption with CN<sup>−</sup> resulting either from the cathodic decomposition of the dye or from ligand release from the Au(I) cyanocomplex yield potential-dependent single or double SFG bands in the range 2,125–2,140 cm<sup>−</sup><sup>1</sup>, exhibiting Stark tuning values of ca. 3 and 1 cm<sup>−</sup><sup>1</sup> V<sup>−</sup><sup>1</sup> in the absence and presence of electrodeposition, respectively. The low Stark tuning found during electrodeposition correlates with the cathodic inhibiting effect of CTDB, giving rise to its levelling properties. The essential insensitivity of the other DFG parameters to the electrodeposition process is due to the growth of smooth Au. |
| first_indexed | 2024-12-20T03:59:43Z |
| format | Article |
| id | doaj.art-45f7f16ee25a46adaf9e86dbaaa6528c |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-20T03:59:43Z |
| publishDate | 2012-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-45f7f16ee25a46adaf9e86dbaaa6528c2022-12-21T19:54:11ZengMDPI AGMolecules1420-30492012-06-011777722773610.3390/molecules17077722<em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>]Benedetto BozziniBertrand BussonAudrey GayralChristophe HumbertClaudio MeleCatherine SixAbderrahmane TadjeddineIn this paper we report an<em> in situ</em> electrochemical Sum-/Difference Frequency Generation (SFG/DFG) spectroscopy investigation of the adsorption of nitrile and CN<sup>−</sup> from the ionic liquid 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide ([BMP][TFSA]) containing 4-{2-[1-(2-cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]- diazenyl}benzonitrile (CTDB) at Au electrodes in the absence and in the presence of the Au-electrodeposition process from K[Au(CN)<sub>2</sub>]. The adsorption of nitrile and its coadsorption with CN<sup>−</sup> resulting either from the cathodic decomposition of the dye or from ligand release from the Au(I) cyanocomplex yield potential-dependent single or double SFG bands in the range 2,125–2,140 cm<sup>−</sup><sup>1</sup>, exhibiting Stark tuning values of ca. 3 and 1 cm<sup>−</sup><sup>1</sup> V<sup>−</sup><sup>1</sup> in the absence and presence of electrodeposition, respectively. The low Stark tuning found during electrodeposition correlates with the cathodic inhibiting effect of CTDB, giving rise to its levelling properties. The essential insensitivity of the other DFG parameters to the electrodeposition process is due to the growth of smooth Au.http://www.mdpi.com/1420-3049/17/7/77221-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide4-{2-[1-(2-cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} benzonitrileAuelectrodepositionnon-linear spectroscopyspectroelectrochemistrySFGDFG |
| spellingShingle | Benedetto Bozzini Bertrand Busson Audrey Gayral Christophe Humbert Claudio Mele Catherine Six Abderrahmane Tadjeddine <em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>] Molecules 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide 4-{2-[1-(2-cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} benzonitrile Au electrodeposition non-linear spectroscopy spectroelectrochemistry SFG DFG |
| title | <em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>] |
| title_full | <em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>] |
| title_fullStr | <em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>] |
| title_full_unstemmed | <em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>] |
| title_short | <em>In Situ</em> Electrochemical SFG/DFG Study of CN<sup>−</sup> and Nitrile Adsorption at Au from 1-Butyl-1-methyl-pyrrolidinium Bis(trifluoromethylsulfonyl) Amide Ionic Liquid ([BMP][TFSA]) Containing 4-{2-[1-(2-Cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} Benzonitrile (CTDB) and K[Au(CN)<sub>2</sub>] |
| title_sort | lt em gt in situ lt em gt electrochemical sfg dfg study of cn lt sup gt lt sup gt and nitrile adsorption at au from 1 butyl 1 methyl pyrrolidinium bis trifluoromethylsulfonyl amide ionic liquid bmp tfsa containing 4 2 1 2 cyanoethyl 1 2 3 4 tetrahydroquinolin 6 yl diazenyl benzonitrile ctdb and k au cn lt sub gt 2 lt sub gt |
| topic | 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide 4-{2-[1-(2-cyanoethyl)-1,2,3,4-tetrahydroquinolin-6-yl]diazenyl} benzonitrile Au electrodeposition non-linear spectroscopy spectroelectrochemistry SFG DFG |
| url | http://www.mdpi.com/1420-3049/17/7/7722 |
| work_keys_str_mv | AT benedettobozzini ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l AT bertrandbusson ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l AT audreygayral ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l AT christophehumbert ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l AT claudiomele ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l AT catherinesix ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l AT abderrahmanetadjeddine ltemgtinsitultemgtelectrochemicalsfgdfgstudyofcnltsupgtltsupgtandnitrileadsorptionataufrom1butyl1methylpyrrolidiniumbistrifluoromethylsulfonylamideionicliquidbmptfsacontaining4212cyanoethyl1234tetrahydroquinolin6yldiazenylbenzonitrilectdbandkaucnltsubgt2l |