Gálvez Oscar, Zoermer Anja, Loewenschuss Aharon, Grothe Hinrich
Institute of Materials Chemistry, Vienna University of Technology, A-1210 Vienna, Austria.
J Phys Chem A. 2006 May 25;110(20):6472-81. doi: 10.1021/jp060586x.
Bromine oxides have been generated by passing a mixture of Br(2)/O(2)/Ar through a microwave discharge. The products were stabilized at 6.5 K in an excess amount of argon. Infrared spectroscopy was used to analyze the species formed; experiments with enriched (18)O(2) and ab initio calculations were carried out to assist in the assignment of the spectra. Besides the known species BrO, OBrO, and BrBrO, spectroscopic evidence for BrOBrO, BrBrO(2), and a new isomer of Br(2)O(3) is reported for the first time. Extensive comparisons are drawn between the present studies and previous experimental and theoretical works. The chemistry involved in the production of the observed compounds is discussed. The assignments are corroborated by the good correlation between observed and calculated band positions and intensities.
通过使Br₂/O₂/Ar的混合物通过微波放电来生成溴氧化物。产物在过量氩气中于6.5 K下被稳定化。使用红外光谱对形成的物种进行分析；进行了用富集的¹⁸O₂的实验和从头算计算以辅助光谱归属。除了已知的物种BrO、OBrO和BrBrO外，首次报道了BrOBrO、BrBrO₂和Br₂O₃的一种新异构体的光谱证据。对本研究与先前的实验和理论工作进行了广泛比较。讨论了所观察到的化合物生成过程中涉及的化学。观察到的和计算出的谱带位置及强度之间的良好相关性证实了归属。
