Isolation of an intrinsic precursor to molecular chemisorption

被引：117

作者：

Brown, DE ^{[1
]}

Moffatt, DJ ^{[1
]}

Wolkow, RA ^{[1
]}

机构：

[1] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada

来源：

SCIENCE | 1998年 / 279卷 / 5350期

关键词：

D O I：

10.1126/science.279.5350.542

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Over the past 70 years, numerous gas-surface adsorption studies have indicated the existence of a weakly bound, mobile intermediate that is a precursor to chemical bond formation, The direct observation and characterization of such a species are presented. Precursor and chemisorbed benzene on a silicon surface were clearly distinguished with the use of a tunable-temperature scanning tunneling microscope. Precursor decay to chemisorption was observed, allowing the salient features of the potential energy surface to be determined.

引用

页码：542 / 544

页数：5

共 45 条

[1] TRAPPING, STICKING AND REACTIVE SCATTERING IN CHEMISORPTION - NITROGEN ISOTOPES ON W(100) [J].

ALNOT, P ;

KING, DA .

SURFACE SCIENCE, 1983, 126 (1-3) :359-367

[2]

ARUMAINAYAGAM CR, 1991, PROGR SURFACE SCI, V38

[3] Breaking individual chemical bonds via STM-induced excitations [J].

Avouris, P ;

Walkup, RE ;

Rossi, AR ;

Akpati, HC ;

Nordlander, P ;

Shen, TC ;

Abeln, GC ;

Lyding, JW .

SURFACE SCIENCE, 1996, 363 (1-3) :368-377

[4] FIELD EMISSION MICROSCOPE AND FLASH FILAMENT TECHNIQUES FOR THE STUDY OF STRUCTURE AND ADSORPTION ON METAL SURFACES [J].

BECKER, JA ;

HARTMAN, CD .

JOURNAL OF PHYSICAL CHEMISTRY, 1953, 57 (02) :153-159

[5]

BECKER R, 1993, METHODS EXPT PHYSICS, V27, P149

[6] THE ADSORPTION OF CO AND O-2 ON NI(111) AT 8-K [J].

BECKERLE, JD ;

YANG, QY ;

JOHNSON, AD ;

CEYER, ST .

SURFACE SCIENCE, 1988, 195 (1-2) :77-93

[7] RATE EXPRESSIONS FOR ADSORPTION AND DESORPTION-KINETICS WITH PRECURSOR STATES AND LATERAL INTERACTIONS [J].

CASSUTO, A ;

KING, DA .

SURFACE SCIENCE, 1981, 102 (2-3) :388-404

[8] PRECURSORS AND TRAPPING IN THE MOLECULAR CHEMISORPTION OF CO ON NI(100) [J].

DEVELYN, MP ;

STEINRUCK, HP ;

MADIX, RJ .

SURFACE SCIENCE, 1987, 180 (01) :47-76

[9] PRECURSOR-MEDIATED ADSORPTION AND DESORPTION - A THEORETICAL-ANALYSIS [J].

DOREN, DJ ;

TULLY, JC .

LANGMUIR, 1988, 4 (02) :256-268

[10] DYNAMICS OF PRECURSOR-MEDIATED CHEMISORPTION [J].

DOREN, DJ ;

TULLY, JC .

JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (12) :8428-8440

← 1 2 3 4 5 →