Unsymmetrical disulfides and thiol mixtures produce different mixed monolayer-protected gold clusters

被引：90

作者：

Shon, YS ^{[1
]}

Mazzitelli, C ^{[1
]}

Murray, RW ^{[1
]}

机构：

[1] Univ N Carolina, Kenan Labs Chem, Chapel Hill, NC 27599 USA

来源：

LANGMUIR | 2001年 / 17卷 / 25期

关键词：

D O I：

10.1021/la015546t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Synthesis of mixed monolayer-protected Au clusters (MPCs) from unsymmetrical disulfides (HO(CH2)(11)SS(CH2)(11)CH3) yields clusters with a 1:1 composition of HO(CH2)(11)S- and CH3(CH2)(11)S- thiolates, whereas products from reaction of a 1: 1 mixture of thiols (HO(CH2)(11)SH and CH3(CH2)(11)SH) contain mostly (97%) HO(CH2)(11)S- ligands in the monolayer. The results suggest a thermodynamically preferred ligation of HO(CH2)(11)SH over CH3(CH2)(11)SH that is circumvented in the disulfide reaction. The core sizes of MPCs synthesized from alkanethiol and dialkyl disulfides are similar, suggesting similar MPC growth dynamics for thiols and disulfides. The compositions of MPCs synthesized starting from gold(I)-thiolate polymer intermediates suggest that the polymer undergoes immediate breakup upon addition of reductant.

引用

页码：7735 / 7741

页数：7

共 71 条

[1] Programming a gold nanocrystal to recognize and selectively bind a molecular substrate in solution [J].

Aherne, D ;

Rao, SN ;

Fitzmaurice, D .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (11) :1821-1825

[2] Organization of 'nanocrystal molecules' using DNA [J].

Alivisatos, AP ;

Johnsson, KP ;

Peng, XG ;

Wilson, TE ;

Loweth, CJ ;

Bruchez, MP ;

Schultz, PG .

NATURE, 1996, 382 (6592) :609-611

[3] Evolution of strategies for self-assembly and hookup of molecule-based devices [J].

Allara, DL ;

Dunbar, TD ;

Weiss, PS ;

Bumm, LA ;

Cygan, MT ;

Tour, JM ;

Reinerth, WA ;

Yao, Y ;

Kozaki, M ;

Jones, L .

MOLECULAR ELECTRONICS: SCIENCE AND TECHNOLOGY, 1998, 852 :349-370

[4] MOSSBAUER AND NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPIC STUDIES ON MYOCRISIN, SOLGANOL, AURANOFIN, AND RELATED GOLD(I) THIOLATES [J].

ALSAADY, AKH ;

MOSS, K ;

MCAULIFFE, CA ;

PARISH, RV .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1984, (08) :1609-1616

[5] Critical sizes in the growth of Au clusters [J].

Alvarez, MM ;

Khoury, JT ;

Schaaff, TG ;

Shafigullin, M ;

Vezmar, I ;

Whetten, RL .

CHEMICAL PHYSICS LETTERS, 1997, 266 (1-2) :91-98

[6] Formation of a novel luminescent form of Gold(I) phenylthiolate via self-assembly and decomposition of isonitrilegold(I) phenylthiolate complexes [J].

Bachman, RE ;

Bodolosky-Bettis, SA ;

Glennon, SC ;

Sirchio, SA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (29) :7146-7147

[7] Structure and dynamics in alkanethiolate monolayers self-assembled on gold nanoparticles: A DSC, FT-IR, and deuterium NMR study [J].

Badia, A ;

Cuccia, L ;

Demers, L ;

Morin, F ;

Lennox, RB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (11) :2682-2692

[8] Gold-sulfur interactions in alkylthiol self-assembled monolayers formed on gold nanoparticles studied by solid-state NMR [J].

Badia, A ;

Demers, L ;

Dickinson, L ;

Morin, FG ;

Lennox, RB ;

Reven, L .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (45) :11104-11105

[9] FORMATION OF 2-COMPONENT SURFACES BY THE SPONTANEOUS ASSEMBLY OF MONOLAYERS ON GOLD FROM SOLUTIONS CONTAINING MIXTURES OF ORGANIC THIOLS [J].

BAIN, CD ;

WHITESIDES, GM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (19) :6560-6561

[10] CORRELATIONS BETWEEN WETTABILITY AND STRUCTURE IN MONOLAYERS OF ALKANETHIOLS ADSORBED ON GOLD [J].

BAIN, CD ;

WHITESIDES, GM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (11) :3665-3666

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