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from article Catalysis and catalysts
The Hoveyda-Grubbs catalyst, molecular formula C31H38Cl2N2ORu, is a ruthenium-based metathesis catalyst.
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from article Nuclear isomerism
Decays of isomers in (a) 77Kr and (b) 77Zn, showing the effects of energy and change of spin/parity on the lifetimes of the states. Numbers and “+” or “−” signs to the left of levels give their spins and parities, and numbers to the right of levels…
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from article Nuclear isomerism
Decays of shape isomers in (a) 74Kr and (b) 238U. Labeling of levels and gamma transitions is the same as in Fig. 1.
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from article Nuclear isomerism
Decay of the spin-gap 95mPd isomer. Labeling of levels and of the gamma transition from the isomeric (21/2+) level is the same as in Fig. 1.
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from article Superacid
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from article Superacid
Hammett acidity function (H0) values for some solutions in 100% H2SO4. (After E. F. Caldin and V. Gold, eds., Proton Transfer Reactions, Chapman and Hall, 1975)
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from article Superacid
Hammett acidity function (H0) values for acids of the fluorosulfuric acid solvent system. (After E. F. Caldin and V. Gold, eds., Proton Transfer Reactions, Chapman and Hall, 1975)
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from article Superacid
Hammett acidity function (H0) values for some HF−MF5 systems.
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from article Marjoram
Close-up view of marjoram (Majorana hortensis; alternatively Origanum majorana). (Photo courtesy of Forest and Kim Starr)
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from article Boiling
Typical boiling curve, showing qualitatively the dependence of the wall heat flux q on the wall superheat ΔT, defined as the difference between the wall temperature and the saturation temperature of the liquid. Schematic drawings show the boiling…
