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Application of Auger electron spectroscopy and principal component analysis to the study of the Pd/c-Si and Pd/a-Si interfaces

✍ Scribed by R. Vidal; J. Ferrón

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
530 KB
Volume
31
Category
Article
ISSN
0169-4332

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Application of principal component analy
Application of principal component analysis to 13C NMR shifts of chalcones and their thiophene and furan analogues: A useful tool for the shift assignment and for the study of substituent effects
✍ Giuseppe Musumarra; Svante Wold; Salo Gronowitz 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 461 KB

## Abstract ^13^C NMR shifts of 54 chalcones and their thiophene and furan analogues are analyzed by principal component analysis. Thus, a mathematical model is derived for the variation of the carbon shifts in each of seven classes. Two component models are found to be adequate by cross‐validation