Department of Chemistry, Zhejiang Sci-Tech University, Hanzhou, China.
J Phys Chem A. 2011 Sep 8;115(35):9947-53. doi: 10.1021/jp205805a. Epub 2011 Aug 16.
The reactions of beryllium atoms with dioxygen were reinvestigated by matrix isolation infrared absorption spectroscopy. Besides the previously reported linear OBeO and cyclic Be(2)O(2) molecules, two interconvertible beryllium ozonide complexes were prepared and characterized. The BeOBe(η(2)-O(3)) complex was formed on annealing, which is characterized to be a side-on bonded ozonide complex with a planar C(2v) structure. The BeOBe(η(2)-O(3)) complex isomerized to the BeOBe(η(1)-O(3)) isomer under visible light excitation, which is an end-on bonded ozonide complex with planar C(s) symmetry. These two isomers are interconvertible; that is, visible light induces the conversion of the side-on bonded complex to the end-on bonded isomer, and vice versa on annealing. In addition, evidence is also presented for the linear BeOBeOBe cluster.
通过矩阵隔离红外吸收光谱法重新研究了铍原子与氧气的反应。除了先前报道的线性 OBeO 和环状 Be(2)O(2)分子外，还制备和表征了两种可互变的铍臭氧化物配合物。在退火时形成了 BeOBe(η(2)-O(3))配合物，其特征为具有平面 C(2v)结构的侧接键合臭氧化物配合物。在可见光激发下，BeOBe(η(2)-O(3))配合物异构化为 BeOBe(η(1)-O(3))异构体，这是一种具有平面 C(s)对称的端接键合臭氧化物配合物。这两种异构体是可互变的；也就是说，可见光诱导侧接键合配合物转化为端接键合异构体，反之亦然，退火时则反之。此外，还提出了线性 BeOBeOBe 团簇的证据。
