Low-Cost, Balle-Flygare-Type Cavity Fourier Transform Microwave Spectrometer and Pure Rotational Spectroscopy Laboratory for Teaching Physical Chemistry and Astronomy
Low-Cost, Balle-Flygare-Type Cavity Fourier Transform Microwave Spectrometer and Pure Rotational Spectroscopy Laboratory for Teaching Physical Chemistry and Astronomy
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用于物理化学和天文学教学的低成本 Balle-Flygare 型腔体傅里叶变换微波光谱仪和纯旋转光谱实验室
DOI:
10.1021/acs.jchemed.0c00934
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发表时间:
2021
影响因子:
3
通讯作者:
Grubbs, G. S.
中科院分区:
文献类型:
--
作者:
Duerden, Amanda;Moon, Nicole;Grubbs, G. S.
Few laboratory exercises exist that introduce undergraduate students to both the concepts and instrumentation used in rotational spectroscopy. Because of this gap in undergraduate laboratory training, a teaching laboratory for the pure rotational spectroscopy of benzonitrile has been developed and reported. Owing to benzonitrile’s recent discovery in space, the molecular spectroscopic technique and target are applicable to both the physical chemistry and astronomy disciplines. Because of the size of the dipole moment and relative safety of the molecule chosen, the laboratory approach allows undergraduates to directly load, tune, measure, and assign spectra using the same quantum chemical approaches and spectroscopic assigning tools available to a researcher in the field. Concepts taught in this laboratory include the rigid and semirigid rotor, as well as low-level nuclear electric quadrupole coupling Hamiltonians. To minimize the budget and allow the students to get hands-on training with the rotational spectroscopy instrumentation, an interactive, low-cost, Balle-Flygare-type, cavity Fourier transform microwave (FTMW) spectrometer of research-grade quality was developed and is reported. Implementation of the laboratory exercise, time of exercise, and student response to the exercise is also reported.
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影响因子:
1.4
作者:
Galen Sedo;Frank E. Marshall;G. Grubbs
通讯作者:
G. Grubbs
DOI:
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发表时间:
2017
期刊:
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2016
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1970
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R. Schwendeman;H. Volltrauer;V. Laurie;E. C. Thomas
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2012
期刊:
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作者:
S. Cooke;P. Ohring
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