Structure determination of gas phase aluminum oxide clusters

被引：57

作者：

van Heijnsbergen, D

Demyk, K

Duncan, MA

Meijer, G

von Helden, G

机构：

[1] EURATOM, FOM, Inst Plasma Phys Rijnhuizen, NL-3439 MN Nieuwegein, Netherlands

[2] Univ Nijmegen, Dept Mol & Laser Phys, NL-6525 ED Nijmegen, Netherlands

[3] Univ Georgia, Dept Chem, Athens, GA 30602 USA

[4] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2003年 / 5卷 / 12期

关键词：

D O I：

10.1039/b212654k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Neutral aluminum oxide clusters are produced in a molecular beam by laser vaporization in a pulsed-nozzle cluster source. These clusters are ionized via (multi-) photon absorption from either an ultraviolet excimer laser or from a far-infrared free electron laser. Ultraviolet (multi-) photon ionization produces sparse mass spectra with only relatively light aluminum oxide clusters, while infrared ionization produces a smooth distribution of higher molecular weight ions from the same nascent source distribution. Tuning the IR wavelength, multiphoton infrared spectra are recorded pointing to the gamma-Al2O3 structure for a whole series of AlO.(Al2O3)(n) clusters, n less than or equal to 34.

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页码：2515 / 2519

页数：5

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