期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 125, 期 13, 页码 7384-7391出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.1c00239
关键词
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By studying 1-chloro-adamantane and 1-bromo-adamantane, it was found that the Br-derivative exhibits a semiordered structure near ambient conditions, possibly due to reduced rotational disorder compared to other halogen-adamantanes. This semiordered phase is briefly discussed in terms of its Rayleigh Wing and Boson peak.
In this paper, we revisit the disorder-order transition in 1-chloro-adamantane and present new data on 1-bromo-adamantane. Rayleigh scattering and Raman-active optical lattice phonons are used to easily characterize the phase change. Unlike Cl-derivative, the Br-derivative shows a semiordered structure in the vicinity of ambient P,T conditions, which is peculiar of this compound and seems to be due to a more reduced rotational disorder of the Br-derivative with respect to the other halogen-adamantanes. The semiordered phase is briefly discussed in terms of its Rayleigh Wing and Boson peak.
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