气候变化领域集成服务门户(CCPortal): Small gold clusters formed in solution give reaction turnover numbers of 107at room temperature

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DOI	10.1126/science.1227813
	Small gold clusters formed in solution give reaction turnover numbers of 107at room temperature
	Oliver-Meseguer J.; Cabrero-Antonino J.R.; Domínguez I.; Leyva-Pérez A.; Corma A.
发表日期	2012
ISSN	0036-8075
起始页码	1452
结束页码	1455
卷号	338 期号:6113
英文摘要	Very small gold clusters (3 to 10 atoms) formed from conventional gold salts and complexes can catalyze various organic reactions at room temperature, even when present at concentrations of parts per billion. Absorption and emission ultraviolet-visible spectroscopy and matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry revealed that, for example, the ester-assisted hydration of alkynes began only when clusters of three to five gold atoms were formed. The turnover numbers and turnover frequencies associated with these catalyzed reactions can be as high as 10 7 and 105 per hour, respectively.
英文关键词	alkyne; gold; gold cluster; unclassified drug; adsorption; catalysis; concentration (composition); desorption; ester; gold; hydration; ionization; temperature effect; turnover; ultraviolet radiation; article; atom; catalysis; chemical reaction; chemical reaction kinetics; hydration; matrix assisted laser desorption ionization time of flight mass spectrometry; priority journal; room temperature; turnover time; ultraviolet spectroscopy
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244944
作者单位	Instituto de Tecnología Química, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain; Centro IFAPA la Mojonera, Camino de San Nicolás 1, 04745 La Mojonera, Almería, Spain
推荐引用方式 GB/T 7714	Oliver-Meseguer J.,Cabrero-Antonino J.R.,Domínguez I.,et al. Small gold clusters formed in solution give reaction turnover numbers of 107at room temperature[J],2012,338(6113).
APA	Oliver-Meseguer J.,Cabrero-Antonino J.R.,Domínguez I.,Leyva-Pérez A.,&Corma A..(2012).Small gold clusters formed in solution give reaction turnover numbers of 107at room temperature.Science,338(6113).
MLA	Oliver-Meseguer J.,et al."Small gold clusters formed in solution give reaction turnover numbers of 107at room temperature".Science 338.6113(2012).