Soft-landing isolation of multidecker V2(benzene)3 complexes in an organic monolayer matrix:: An infrared spectroscopy and thermal desorption study
Soft-landing isolation of multidecker V2(benzene)3 complexes in an organic monolayer matrix:: An infrared spectroscopy and thermal desorption study
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DOI：
10.1021/ja068442j
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发表时间：
2007-02-14
影响因子：
15
通讯作者：
Nakajima, Atsushi
中科院分区：
文献类型：
--
作者：
Nagaoka, Shuhei;Matsumoto, Takeshi;Nakajima, Atsushi
气相合成的多层V-2（苯）(3)夹层配合物软着陆在自组装的正十八烷硫醇（C-18-SAM）单层上。利用红外反射吸收光谱（IRAS）获得了该配合物在C-18-SAM上的红外吸收光谱。V-2（苯）(3)夹层的IRAS谱的振动分配是基于采用密度泛函理论的谐波频率分析。红外吸收频率的实验结果与计算结果非常接近，表明V-2（苯）(3)配合物在SAM衬底上具有多层夹层结构。此外，我们的热解吸研究表明，夹层配合物可以在高达350 K的高温下在SAM衬底上分离。
Gas-phase synthesized multidecker V-2(benzene)(3) sandwich complexes were soft-landed onto a self-assembled monolayer of an n-octadecanethiol (C-18-SAM). The infrared absorption spectrum of this complex supported on the C-18-SAM was obtained by infrared reflection absorption spectroscopy (IRAS). The vibrational assignment of the IRAS spectrum for the V-2(benzene)(3) sandwich was based on a harmonic frequency analysis that employed density functional theory. The close similarity between the experimental and calculated results for the IR absorption frequencies demonstrates that the V-2(benzene)(3) complexes have a multidecker sandwich structure on the SAM substrate. Moreover, our thermal desorption study established that the sandwich complexes can be isolated on the SAM substrate up to a high temperature of similar to 350 K.