1
|
Miyamoto K, Hirobe M, Uchiyama M, Ochiai M. Stereoselective synthesis and reaction of gold(i) (Z)-enethiolates. Chem Commun (Camb) 2015; 51:7962-5. [DOI: 10.1039/c5cc02000j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bench-top-storable (Z)-enethiol reagents: gold (Z)-1-decenylthiolates were synthesized stereoselectively in high yields.
Collapse
Affiliation(s)
- Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Hongo
- Japan
- Advanced Elements Chemistry Research Team
| | - Masaya Hirobe
- Graduate School of Pharmaceutical Sciences
- University of Tokushima
- Tokushima 770-8505
- Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Hongo
- Japan
- Advanced Elements Chemistry Research Team
| | - Masahito Ochiai
- Graduate School of Pharmaceutical Sciences
- University of Tokushima
- Tokushima 770-8505
- Japan
| |
Collapse
|
2
|
Cyriac J, Pradeep T, Kang H, Souda R, Cooks RG. Low-Energy Ionic Collisions at Molecular Solids. Chem Rev 2012; 112:5356-411. [DOI: 10.1021/cr200384k] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jobin Cyriac
- DST Unit of
Nanoscience, Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - T. Pradeep
- DST Unit of
Nanoscience, Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - H. Kang
- Department of Chemistry, Seoul National University, Gwanak-gu, Seoul 151-747,
Republic of Korea
| | - R. Souda
- International
Center for Materials
Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - R. G. Cooks
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| |
Collapse
|
3
|
Bruno G, Babudri F, Operamolla A, Bianco GV, Losurdo M, Giangregorio MM, Hassan Omar O, Mavelli F, Farinola GM, Capezzuto P, Naso F. Tailoring density and optical and thermal behavior of gold surfaces and nanoparticles exploiting aromatic dithiols. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:8430-8440. [PMID: 20433150 DOI: 10.1021/la101082t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Self-assembled monolayers (SAMs) derived of 4-methoxy-terphenyl-3'',5''-dimethanethiol (TPDMT) and 4-methoxyterphenyl-4''-methanethiol (TPMT) have been prepared by chemisorption from solution onto gold thin films and nanoparticles. The SAMs have been characterized by spectroscopic ellipsometry, Raman spectroscopy and atomic force microscopy to determine their optical properties, namely the refractive index and extinction coefficient, in an extended spectral range of 0.75-6.5 eV. From the analysis of the optical data, information on SAMs structural organization has been inferred. Comparison of SAMs generated from the above aromatic thiols to well-known SAMs generated from the alkanethiol dodecanethiol revealed that the former aromatic SAMs are densely packed and highly vertically oriented, with a slightly higher packing density and a absence of molecular inclination in TPMT/Au. The thermal behavior of SAMs has also been monitored using ellipsometry in the temperature range 25-500 degrees C. Gold nanoparticles functionalized by the same aromatic thiols have also been discussed for surface enhanced Raman spectroscopy applications. This study represents a step forward tailoring the optical and thermal behavior of surfaces as well as nanoparticles.
Collapse
Affiliation(s)
- Giovanni Bruno
- Institute of Inorganic Methodologies and of Plasmas, IMIP-CNR, via Orabona 4, 70126 Bari, Italy.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Surface Modification Using Reactive Landing of Mass-Selected Ions. ION BEAMS IN NANOSCIENCE AND TECHNOLOGY 2009. [DOI: 10.1007/978-3-642-00623-4_3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
5
|
García-Raya D, Madueño R, Sevilla JM, Blázquez M, Pineda T. Electrochemical characterization of a 1,8-octanedithiol self-assembled monolayer (ODT-SAM) on a Au(111) single crystal electrode. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.06.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Operamolla A, Hassan Omar O, Babudri F, Farinola GM, Naso F. Synthesis of S-Acetyl Oligoarylenedithiols via Suzuki−Miyaura Cross-Coupling. J Org Chem 2007; 72:10272-5. [DOI: 10.1021/jo701918z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alessandra Operamolla
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4 I-70126 Bari, Italy, and Dipartimento di Chimica, CNR ICCOM-Dipartimento di Chimica, via Orabona, 4 I-70126 Bari, Italy
| | - Omar Hassan Omar
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4 I-70126 Bari, Italy, and Dipartimento di Chimica, CNR ICCOM-Dipartimento di Chimica, via Orabona, 4 I-70126 Bari, Italy
| | - Francesco Babudri
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4 I-70126 Bari, Italy, and Dipartimento di Chimica, CNR ICCOM-Dipartimento di Chimica, via Orabona, 4 I-70126 Bari, Italy
| | - Gianluca M. Farinola
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4 I-70126 Bari, Italy, and Dipartimento di Chimica, CNR ICCOM-Dipartimento di Chimica, via Orabona, 4 I-70126 Bari, Italy
| | - Francesco Naso
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4 I-70126 Bari, Italy, and Dipartimento di Chimica, CNR ICCOM-Dipartimento di Chimica, via Orabona, 4 I-70126 Bari, Italy
| |
Collapse
|
7
|
Zhang YP, Yong KS, Lai YH, Xu GQ, Wang XS. Selective attachment of 1,4-benzenedimethanethiol on the copper mediated Si(111)-(7 x 7) surface through S-Cu linkage. J Phys Chem B 2005; 109:13843-6. [PMID: 16852735 DOI: 10.1021/jp052329i] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The well-defined and patterned copper clusters formed on the Si(111)-(7 x 7) surface have been employed as a template for selective binding of 1,4-benzenedimethanethiol (HS-CH2-C6H4-CH2-SH, 1,4-BDMT), to form ordered molecular nanostructures. Scanning tunneling microscopic (STM) studies showed that each 1,4-BDMT molecule preferentially binds to two neighboring copper atoms within one copper cluster through the S-Cu interaction with its molecular plane parallel to the surface, whereas some 1,4-BDMT bond to individually adsorbed copper atoms, resulting in an upright configuration. Large-scale two-dimensional molecular nanostructures can be obtained using this patterned assembly technique. Our experiments demonstrate the feasibility for controllable growth of ordered molecular nanostructures on the Si(111)-(7 x 7) surface.
Collapse
|
8
|
Rifai S, Morin M. Isomeric effect on the oxidative formation of bilayers of benzenedimethanethiol on Au(111). J Electroanal Chem (Lausanne) 2003. [DOI: 10.1016/s0022-0728(03)00043-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
9
|
Wade N, Evans C, Jo SC, Cooks RG. Silylation of an OH-terminated self-assembled monolayer surface through low-energy collisions of ions: a novel route to synthesis and patterning of surfaces. JOURNAL OF MASS SPECTROMETRY : JMS 2002; 37:591-602. [PMID: 12112741 DOI: 10.1002/jms.317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Using a multi-sector ion-surface scattering mass spectrometer, reagent ions of the general form SiR(3) (+) were mass and energy selected and then made to collide with a hydroxy-terminated self-assembled monolayer (HO-SAM) surface at energies of approximately 15 eV. These ion-surface interactions result in covalent transformation of the terminal hydroxy groups at the surface into the corresponding silyl ethers due to Si--O bond formation. The modified surface was characterized in situ by chemical sputtering, a low-energy ion-surface scattering experiment. These data indicate that the ion-surface reactions have high yields (i.e. surface reactants converted to products). Surface reactions with Si(OCH(3))(3) (+), followed by chemical sputtering using CF(3) (+), yielded the reagent ion, Si(OCH(3))(3) (+), and several of its fragments. Other sputtered ions, namely SiH(OCH(3))(2)OH(2) (+) and SiH(2)(OCH(3))OH(2) (+), contain the newly formed Si--O bond and provide direct evidence for the covalent modification reaction. Chemical sputtering of modified surfaces, performed using CF(3) (+), was evaluated over a range of collision energies. The results showed that the energy transferred to the sputtered ions, as measured by their extent of fragmentation in the scattered ion mass spectra, was essentially independent of the collision energy of the projectile, thus pointing to the occurrence of reactive sputtering.A set of silyl cations, including SiBr(3) (+), Si(C(2)H(3))(3) (+) and Si(CH(3))(2)F(+), were similarly used to modify the HO-SAM surface at low collision energies. A reaction mechanism consisting of direct electrophilic attack by the cationic projectiles is supported by evidence of increased reactivity for these reagent ions with increases in the calculated positive charge at the electron-deficient silicon atom of each of these cations. In a sequential set of reactions, 12 eV deuterated trimethylsilyl cations, Si(CD(3))(3) (+), were used first as the reagent ions to modify covalently a HO-SAM surface. Subsequently, 70 eV SiCl(3) (+) ions were used to modify the surface further. In addition to yielding sputtered ions of the modified surface, SiCl(3) (+) reacted with both modified and unmodified groups on the surface, giving rise not only to such scattered product ions as SiCl(2)OH(+) and SiCl(2)H(+), but also to SiCl(2)CD(3) (+) and SiCl(2)D(+). This result demonstrates that selective, multi-step reactions can be performed at a surface through low-energy ionic collisions. Such processes are potentially useful for the construction of novel surfaces from a monolayer substrate and for chemical patterning of surfaces with functional groups.
Collapse
Affiliation(s)
- Nathan Wade
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | | | | | | |
Collapse
|
10
|
Wade N, Shen J, Koskinen J, Cooks RG. Reactions of BBr(n)(+) (n = 0--2) at fluorinated and hydrocarbon self-assembled monolayer surfaces: observations of chemical selectivity in ion--surface scattering. JOURNAL OF MASS SPECTROMETRY : JMS 2001; 36:717-725. [PMID: 11473394 DOI: 10.1002/jms.177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Ion-surface reactions involving BBr(n)(+) (n = 0--2) with a fluorinated self-assembled monolayer (F-SAM) surface were investigated using a multi-sector scattering mass spectrometer. Collisions of the B(+) ion yield BF(2)(+) at threshold energy with the simpler product ion BF(+)* appearing at higher collision energies and remaining of lower abundance than BF(2)(+) at all energies examined. In addition, the reactively sputtered ion CF(+) accompanies the formation of BF(2)(+) at low collision energies. These results stand in contrast with previous data on the ion-surface reactions of atomic ions with the F-SAM surface in that the threshold and most abundant reaction products in those cases involved the abstraction of a single fluorine atom. Gas-phase enthalpy data are consistent with BF(2)(+) being the thermodynamically favored product. The fact that the abundance of BF(2)(+) is relatively low and relatively insensitive to changes in collision energy suggests that this reaction proceeds through an entropically demanding intermediate at the vacuum--surface interface, one which involves interaction of the B(+) ion simultaneously with two fluorine atoms. By contrast with the reaction of B(+), the odd-electron species BBr(+)* reacts with the F-SAM surface to yield an abundant single-fluorine abstraction product, BBrF(+). Corresponding gas-phase ion--molecule experiments involving B(+) and BBr(+)* with C(6)F(14) also yield the products BF(+)* and BF(2)(+), but only in extremely low abundances and with no preference for double fluorine abstraction. Ion--surface reactions were also investigated for BBr(n)(+) (n = 0-2) with a hydrocarbon self-assembled monolayer (H-SAM) surface. Reaction of the B(+) ion and dissociative reactions of BBr(+)* result in the formation of BH(2)(+), while the thermodynamically less favorable product BH(+)* is not observed. Collisions of BBr(2)(+) with the H-SAM surface yield the dissociative ion-surface reaction products, BBrH(+) and BBrCH(3)(+). Substitution of bromine atoms on the projectile by hydrogen or alkyl radicals suggests that Br atoms may be transferred to the surface in a Br-for-H or Br-for-CH(3) transfer reaction in an analogous fashion to known transhalogenation reactions at the F-SAM surface. The results for the H-SAM surface stand in contrast to those for the F-SAM surface in that enhanced neutralization of the primary ions gives secondary ion signals one to two orders of magnitude smaller than those obtained when using the F-SAM surface, consistent with the relative ionization energies of the two materials.
Collapse
Affiliation(s)
- N Wade
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | | | | | | |
Collapse
|
11
|
Wade N, Evans C, Pepi F, Cooks RG. Collisions of Silylium Cations with Hydroxyl-Terminated and Other Self-Assembled Monolayer Surfaces: Reactions, Dissociation, and Surface Characterization. J Phys Chem B 2000. [DOI: 10.1021/jp002405b] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nathan Wade
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Chris Evans
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Federico Pepi
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - R. Graham Cooks
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907
| |
Collapse
|