chemistry

Xenon fluoride nitrate

Xenon fluoride nitrate 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 Xenon fluoride nitrate rather than just read about it. In short: Xenon fluoride nitrate, also known as fluoroxenonium nitrate, is the chemical compound with formula FXeONO2. Synthesis This compound is formed via the reaction: [FXeOXeFXeF][AsF6] + 2NO2F → FXeONO2 + NO2AsF6.

Key takeaways

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

Reference excerpt

Xenon fluoride nitrate, also known as fluoroxenonium nitrate, is the chemical compound with formula FXeONO2.

Synthesis This compound is formed via the reaction:

[FXeOXeFXeF][AsF6] + 2NO2F → FXeONO2 + NO2AsF6. Purification of FXeONO2 can then take place by dissolving in SO2ClF, which leaves the nitronium arsenic hexafluoride behind as a solid. An alternate low yield method to make FXeONO2 is to dissolve xenon difluoride in liquid dinitrogen tetroxide at 0 °C.

XeF2 + NO+ + NO3− → FXeONO2 + NOF This method is inefficient as not much nitrate ion exists in the liquid and the xenon fluoride nitrate decomposes. Another method claimed to make this substance is:

XeF2 + HNO3 → FXeONO2 + HF

Properties FXeONO2 is a white crystalline material. The space group of the crystals is P21/c, which is monoclinic. The unit cell contains four molecules with a total volume of 386.6 Å3. The unit cell dimensions are a = 4.6663 Å, b = 8.799 Å c = 9.415 Å, with non-perpendicular angle β = 90.325°. With a molecular weight of 212.3, the crystal has density 3.648. (These measurements at −173 °C.) The bond lengths in the molecule are 1.992 Å for Xe–F, 2.126 Å for Xe–O, 1.36 Å for O–NO2, 1.199 for N–Ocis and 1.224 Å for N–Otrans. The bond angles are 177.6° for F–Xe–O, 114.7° for Xe-O-N, 114.5° for (Xe)O–N–Ocis, 118.4° for (Xe)O–N–Otrans and 127.1° for Ocis–N–Otrans. The bond lengths and angles on the xenon atom are similar to that in FXeOSO2F and FXeOTeF5, indicating a polar oxygen bond. The Xe–O–N angle is larger than those in halogen nitrates, which indicates a lower bond density for the Xe–O bond. The N–Ocis bond length is longer than the N–Otrans bond length, opposite to other halogen nitrates. FXeONO2 is not particularly stable and slowly breaks down at −78 °C, yielding XeF2·N2O4. This happens on a timescale of several days. At 0 °C, FXeONO2 has a half life of seven hours, decomposing to XeF2.

References

Illustrations

Worked examples

Example 1 — a first encounter with Xenon fluoride nitrate

Start with the simplest possible case. Write down what Xenon fluoride nitrate 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 Xenon fluoride nitrate 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 Xenon fluoride nitrate 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 Xenon fluoride nitrate

In research: Xenon fluoride nitrate 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 Xenon fluoride nitrate 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: Xenon fluoride nitrate is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fluorides, Nitrates, Xenon(II) compounds, so understanding it makes those chapters shorter.
In everyday life: Look for Xenon fluoride nitrate 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 Xenon fluoride nitrate in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Xenon fluoride nitrate 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 Xenon fluoride nitrate out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Xenon fluoride nitrate in simple terms?

Xenon fluoride nitrate, also known as fluoroxenonium nitrate, is the chemical compound with formula FXeONO2. Synthesis This compound is formed via the reaction: [FXeOXeFXeF][AsF6] + 2NO2F → FXeONO2 + NO2AsF6.

Why does Xenon fluoride nitrate 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 Xenon fluoride nitrate?

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 Xenon fluoride nitrate.