chemistry

Fulvio Cacace

Fulvio Cacace is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Fulvio Cacace rather than just read about it. In short: Fulvio Cacace (died 1 December 2003) was an Italian chemist. In 1963, while at the Sapienza University of Rome, he devised the decay technique for the study of organic radicals and carbenium cations.

Key takeaways

Fulvio Cacace belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Fulvio Cacace to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Fulvio Cacace from memory before moving on to harder problems.

Reference excerpt

Fulvio Cacace (died 1 December 2003) was an Italian chemist. In 1963, while at the Sapienza University of Rome, he devised the decay technique for the study of organic radicals and carbenium cations. The technique is based on the preparation of compounds containing the radioactive isotope tritium in place of common hydrogen. When the tritium undergoes beta decay, it is turned into a helium-3 atom, that detaches from the parent molecule, leaving the desired cation or radical behind. The technique has made it possible to study the chemistry of a vast number of such radicals and ions, in all sorts of environments, including solids, liquids, and gases. In particular, it has provided much of the knowledge of the chemistry of the helium hydride ion, specifically [3He3H]+.

Some publications (1966) "A Tracer Study of the Reactions of Ionic Intermediates Formed by Nuclear Decay of Tritiated Molecules. I. Methane-t4". (1970) "Gaseous Carbonium Ions from the Decay of Tritiated Molecules". (1973) "Gas-phase reaction of tert-butyl ions with arenes. Remarkable selectivity of a gaseous, charged electrophile". (1976) "Gas-phase alkylation of xylenes by tert-butyl(1+) ions". (1977) "Aromatic substitution in the gas phase. Ambident behavior of phenol toward t-C4H9+ cations". (1977) "Aromatic substitution in the liquid phase by bona fide free methyl cations. Alkylation of benzene and toluene". (1978) "Aromatic substitutions by [3H3]methyl decay ions. A comparative study of the gas- and liquid-phase attack on benzene and toluene". (1979) "Gas-phase reaction of free isopropyl ions with phenol and anisole". (1980) "Aromatic substitution in the gas phase. A comparative study of the alkylation of benzene and toluene with C3H7+ ions from the protonation of cyclopropane and propene". (1981) "Aromatic substitution in the gas phase. Alkylation of arenes by gaseous C4H9+ cations". (1982) "On the formation of adduct ions in gas-phase aromatic substitution". (1982) "Alkylation of nitriles with gaseous carbenium ions. The Ritter reaction in the dilute gas state". (1982) "Aromatic substitution in the gas phase. Alkylation of arenes by C4H9+ ions from the protonation of C4 alkenes and cycloalkanes with gaseous Brønsted acids". (1983) "Aromatic substitution in the gas phase. Intramolecular selectivity of the reaction of aniline with charged electrophiles". (1984) "Gas-phase reactions of free phenylium cations with C3H6 hydrocarbons". (1985) "Intramolecular selectivity of the alkylation of substituted anilines by gaseous cations". (1986) "Temperature dependence of the substrate and positional selectivity of the aromatic substitution by gaseous tert-butyl cation". (1990) "Nuclear Decay Techniques in Ion Chemistry". (1992) "Proton shifts in gaseous arenium ions and their role in the gas-phase aromatic substitution by free Me3C+ and Me3Si+ [tert-butyl and trimethylsilyl] cations". (1993) "Interannular proton transfer in thermal arenium ions from the gas-phase alkylation of 1,2-diphenylethane".

References

Worked examples

Example 1 — a first encounter with Fulvio Cacace

Start with the simplest possible case. Write down what Fulvio Cacace claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Fulvio Cacace before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Fulvio Cacace ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Fulvio Cacace

In research: Fulvio Cacace appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Fulvio Cacace in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Fulvio Cacace is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2003 deaths, 20th-century Italian chemists, Chemist stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Fulvio Cacace outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Fulvio Cacace” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Fulvio Cacace in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Fulvio Cacace means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Fulvio Cacace out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Fulvio Cacace in simple terms?

Fulvio Cacace (died 1 December 2003) was an Italian chemist. In 1963, while at the Sapienza University of Rome, he devised the decay technique for the study of organic radicals and carbenium cations.

Why does Fulvio Cacace matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Fulvio Cacace?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Fulvio Cacace.