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Silicon monosulfide

Silicon monosulfide 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 Silicon monosulfide rather than just read about it. In short: Silicon monosulfide is a chemical compound of silicon and sulfur. The chemical formula is SiS.

Silicon monosulfide — main illustration
Silicon monosulfide — illustration

Key takeaways

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

Reference excerpt

Silicon monosulfide is a chemical compound of silicon and sulfur. The chemical formula is SiS. Molecular SiS has been detected at high temperature in the gas phase. The gas phase molecule has an Si-S bondlength of 192.93 pm, this compares to the normal single bond length of 216 pm, and is shorter than the Si=S bond length of around 201 pm reported in an organosilanethione. Historically a pale yellow-red amorphous solid compound has been reported. The behavior of silicon can be contrasted with germanium which forms a stable solid monosulfide.

Further reading Müller, H. S. P.; McCarthy, M. C.; Bizzocchi, L.; Gupta, H.; Esser, S.; Lichau, H.; Caris, M.; Lewen, F.; et al. (2007). "Rotational spectroscopy of the isotopic species of silicon monosulfide, SiS". Physical Chemistry Chemical Physics. 9 (13): 1579–86. Bibcode:2007PCCP....9.1579M. doi:10.1039/B618799D. PMID 17429551. Chattopadhyaya, Surya; Chattopadhyay, Anjan; Das, Kalyan Kumar (2002). "Electronic Spectrum of Silicon Monosulfide: Configuration Interaction Study". The Journal of Physical Chemistry A. 106 (5): 833. Bibcode:2002JPCA..106..833C. doi:10.1021/jp013332e. Birk, Helmut; Jones, Harold (1990). "Diode laser measurement of the infrared spectrum of silicon monosulfide". Chemical Physics Letters. 175 (5): 536. Bibcode:1990CPL...175..536B. doi:10.1016/0009-2614(90)85577-Y.

References

Illustrations

Silicon monosulfide illustration

Worked examples

Example 1 — a first encounter with Silicon monosulfide

Start with the simplest possible case. Write down what Silicon monosulfide 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 Silicon monosulfide 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 Silicon monosulfide 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 Silicon monosulfide

In research
Silicon monosulfide 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 Silicon monosulfide 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
Silicon monosulfide is common in secondary-school and first-year university syllabi. It links to neighbouring topics Inorganic compound stubs, Inorganic silicon compounds, Monosulfides, so understanding it makes those chapters shorter.
In everyday life
Look for Silicon monosulfide 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 Silicon monosulfide in 20 minutes

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

Frequently asked questions

What is Silicon monosulfide in simple terms?

Silicon monosulfide is a chemical compound of silicon and sulfur. The chemical formula is SiS.

Why does Silicon monosulfide 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 Silicon monosulfide?

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 Silicon monosulfide.

Tags

  • Inorganic compound stubs
  • Inorganic silicon compounds
  • Monosulfides

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