science

Tetrakis(acetonitrile)copper(I) tetrafluoroborate

Tetrakis(acetonitrile)copper(I) tetrafluoroborate is a science 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate rather than just read about it. In short: Tetrakis(acetonitrile)copper(I) tetrafluoroborate is a complex compound of copper with acetonitrile as the ligand and tetrafluoroborate as the counterion. Structure Tetrakis(acetonitrile)copper(I) tetrafluoroborate forms colorless crystals in the orthorhombic crystal system in the space group Pna21 with the lattice parameters a = 23.882 Å; b = 8.3285 Å; c = 20.338 Å, and twelve unit cells.

Key takeaways

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

Reference excerpt

Tetrakis(acetonitrile)copper(I) tetrafluoroborate is a complex compound of copper with acetonitrile as the ligand and tetrafluoroborate as the counterion.

Structure Tetrakis(acetonitrile)copper(I) tetrafluoroborate forms colorless crystals in the orthorhombic crystal system in the space group Pna21 with the lattice parameters a = 23.882 Å; b = 8.3285 Å; c = 20.338 Å, and twelve unit cells. The compound is isomorphous with tetrakis(acetonitrile)copper(I) perchlorate and tetrakis(acetonitrile)silver(I) perchlorate.

Preparation Tetrakis(acetonitrile)copper(I) tetrafluoroborate can be prepared starting from nitrosyl tetrafluoroborate according to the following equation:

Cu + NOBF4 + 4 CH3CN → [Cu(CH3CN)4]BF4 + NO The conversion appears to occur in two stages, initially producing a green-blue copper(II) complex. This complex is reduced to the colorless copper(I) complex by further treatment with metallic copper.

Reactions Tetrakis(acetonitrile)copper(I) tetrafluoroborate reacts with methoxyisobutyl isonitrile to produce tetrakis(methoxyisobutylisonitrile)copper(I) tetrafluoroborate:

[Cu(CH3CN)4]BF4 + 4 CH3O(CH3)2CCH2NC → [Cu(CH3O(CH3)2CCH2NC)4]BF4 + 4 CH3CN [Cu(CH3O(CH3)2CCH2NC)4]BF4 is used to produce technetium(99mTc)-sestamibi, which is of commercial value.

References

Illustrations

Worked examples

Example 1 — a first encounter with Tetrakis(acetonitrile)copper(I) tetrafluoroborate

Start with the simplest possible case. Write down what Tetrakis(acetonitrile)copper(I) tetrafluoroborate claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate

In research: Tetrakis(acetonitrile)copper(I) tetrafluoroborate appears in science 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate 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: Tetrakis(acetonitrile)copper(I) tetrafluoroborate is common in secondary-school and first-year university syllabi. It links to neighbouring topics Copper complexes, Tetrafluoroborates, so understanding it makes those chapters shorter.
In everyday life: Look for Tetrakis(acetonitrile)copper(I) tetrafluoroborate 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tetrakis(acetonitrile)copper(I) tetrafluoroborate 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tetrakis(acetonitrile)copper(I) tetrafluoroborate in simple terms?

Tetrakis(acetonitrile)copper(I) tetrafluoroborate is a complex compound of copper with acetonitrile as the ligand and tetrafluoroborate as the counterion. Structure Tetrakis(acetonitrile)copper(I) tetrafluoroborate forms colorless crystals in the orthorhombic crystal system in the space group Pna21…

Why does Tetrakis(acetonitrile)copper(I) tetrafluoroborate matter?

Because it connects several science 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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate?

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 Tetrakis(acetonitrile)copper(I) tetrafluoroborate.