Molecular Spectra and Molecule Structure. I. Diatomic Molecules.
Molecular Spectra and Molecule Structure. I. Diatomic Molecules.
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DOI:
10.1021/j150403a025
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发表时间:
1940-07
期刊:
影响因子:
--
通讯作者:
G. Herzberg
中科院分区:
文献类型:
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作者:
G. Herzberg
The treatment of the several subjects varies greatly, not only in emphasis and detail, but in manner of presentation. For example, some subjects, such as “Thermionic Vacuum Tubes,” are represented by clear and adequate outlines of their gen-eral principles and applications. In other cases, as the section on“Molecular Weights,” there is a good detailed description of the more important experimental methods. A few chapters, the one on “Reaction Rates” being a particularly bad example, consist of very elementary theoretical discussions followed by the directions for a few experiments of the type commonly found in the older laboratory manuals of physical chemistry. Some topics which are of theoretical andpractical interest have been omitted entirely. Amongst these we might mention propagation of flames, gaseous explosions, diffusion, and the rates of dissolution, evaporation, and crystallization. Photochemistry, fluorescence, phosphorescence, and chemilumines-cence receive scant mention in the section on the “Photoelectric Effect.” Perhaps the greatest single improvement is the introduction in the edition of an extensive classified bibliography of specialized works on physicochemical methods. On the other hand, it is to be regretted that the excellent indexof the second edition has been replaced by one so brief that it is practically useless. The new edition shows a decided trend toward subjects of practical interest. It includes sections on such chemical engineering topics as “Plant Designand Press Filtration,” but devotes relatively less space than formerly to the refined methods of specialized research. Several of the new chapters have been written by specialists in the subjects concerned.In contrast to these practical subjects, the authors have introduced a rather abstract discussion under the general title “Measurement and Units.” This chapter, 53 pages long, was written byProfessor O’Rahilly. Without questioningthe correctness or utility of Professor O’Rahilly’s concepts and terminology (the re-viewer lacks courage to cross cudgels with one who boasts (p. 92) that he has exploded the dimensions of the electrical text bookswith one swoop), it appears that this chapter is entirely out of place in a book which is devoted to the practical methods of physical chemistry.*