chemistry

Oxotrichlorobis(triphenylphosphine)rhenium(V)

Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V) rather than just read about it. In short: Oxotrichlorobis(triphenylphosphine)rhenium(V) is the chemical compound with the formula ReOCl3(PPh3)2. This yellow, air-stable solid is a precursor to a variety of other rhenium complexes.

Key takeaways

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

Reference excerpt

Oxotrichlorobis(triphenylphosphine)rhenium(V) is the chemical compound with the formula ReOCl3(PPh3)2. This yellow, air-stable solid is a precursor to a variety of other rhenium complexes. In this diamagnetic compound, Re has an octahedral coordination environment with one oxo, three chloro and two mutually trans triphenylphosphine ligands. The oxidation state of rhenium is +5 and its configuration is d2.

Synthesis ReOCl3(PPh3)2 is commercially available, but it is readily synthesized by reaction of perrhenic acid with triphenylphosphine in a mixture of hydrochloric acid and acetic acid. In this reaction, Re(VII) is reduced to Re(V), and triphenylphosphine is oxidized to its oxide.

HReO4 + 3 HCl + 3 PPh3 → ReOCl3(PPh3)2 + Ph3PO + 2 H2O The required perrhenic acid solution can be prepared in situ from rhenium(VII) oxide.

Uses ReOCl3(PPh3)2 is a precursor to a variety of other oxo-, nitridio, and hydrido complexes. It converts to ReH7(PPh3)2 by a treatment with LiAlH4. ReOCl3(PPh3)2 catalyzes the selective oxidation of secondary alcohols by DMSO, producing the corresponding ketals.

References

Illustrations

Worked examples

Example 1 — a first encounter with Oxotrichlorobis(triphenylphosphine)rhenium(V)

Start with the simplest possible case. Write down what Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V)

In research: Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V) 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: Oxotrichlorobis(triphenylphosphine)rhenium(V) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Chloro complexes, Rhenium compounds, Triphenylphosphine complexes, so understanding it makes those chapters shorter.
In everyday life: Look for Oxotrichlorobis(triphenylphosphine)rhenium(V) 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.

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How to study Oxotrichlorobis(triphenylphosphine)rhenium(V) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Oxotrichlorobis(triphenylphosphine)rhenium(V) in simple terms?

Oxotrichlorobis(triphenylphosphine)rhenium(V) is the chemical compound with the formula ReOCl3(PPh3)2. This yellow, air-stable solid is a precursor to a variety of other rhenium complexes.

Why does Oxotrichlorobis(triphenylphosphine)rhenium(V) 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 Oxotrichlorobis(triphenylphosphine)rhenium(V)?

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 Oxotrichlorobis(triphenylphosphine)rhenium(V).