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Probing Phase Evolutions of Au-Methyl-Propyl-Thiolate Self-Assembled Monolayers on Au(111) at the Molecular Level
Gao, Jianzhi1; Lin, Haiping2; Qin, Xuhui1; Zhang, Xin3; Ding, Haoxuan4; Wang, Yitao1; Fard, Mahroo Rokni4; Kaya, Dogan4; Zhu, Gangqiang1; Li, Qing2; Li, Youyong2; Pan, Minghu3; Guo, Quanmin4
2018-06-28
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume122Issue:25Pages:6666-6672
AbstractA self-assembled monolayer (SAM) consisting of a mixture of CH3S-Au-SCH3, CH3S-Au-S(CH2)(2)CH3, and CH3 (CH2)(2)S-Au-S(CH2)(2)CH3 was studied systematically using scanning tunneling microscopy and density functional calculations. We find that the SAM is subjected to frequent changes at the molecular level on the time scale of similar to minutes. The presence of CH3S or CH3S-Au as a dissociation product of CH3S-Au-SCH3 plays a key role in the dynamical behavior of the mixed SAM. Slow phase separation takes place at room temperature over hours to days, leading to the formation of methyl-thiolate-rich and propylthiolate-rich phases. Our results provide new insights into the chemistry of the thiolate-Au interface, especially for ligand exchange reaction in the RS-Au-SR staple motif.
DOI10.1021/acs.jpcb.8b03390
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000437811300023
PublisherAMER CHEMICAL SOC
The Source to ArticleWOS
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Affiliation1.Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Shaanxi, Peoples R China;
2.Soochow Univ, Inst Funct Nano & Soft Mat, Jiangsu Key Lab Carbon Based Funct Mat & Devices, 199 Ren Ai Rd, Suzhou 215123, Jiangsu, Peoples R China;
3.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China;
4.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
Recommended Citation
GB/T 7714
Gao, Jianzhi,Lin, Haiping,Qin, Xuhui,et al. Probing Phase Evolutions of Au-Methyl-Propyl-Thiolate Self-Assembled Monolayers on Au(111) at the Molecular Level[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2018,122(25):6666-6672.
APA Gao, Jianzhi.,Lin, Haiping.,Qin, Xuhui.,Zhang, Xin.,Ding, Haoxuan.,...&Guo, Quanmin.(2018).Probing Phase Evolutions of Au-Methyl-Propyl-Thiolate Self-Assembled Monolayers on Au(111) at the Molecular Level.JOURNAL OF PHYSICAL CHEMISTRY B,122(25),6666-6672.
MLA Gao, Jianzhi,et al."Probing Phase Evolutions of Au-Methyl-Propyl-Thiolate Self-Assembled Monolayers on Au(111) at the Molecular Level".JOURNAL OF PHYSICAL CHEMISTRY B 122.25(2018):6666-6672.
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