double bond

USAGE SUMMARY

"double bond" is correct and can be used in written English.
It is usually used in the context of chemistry to describe a particular type of chemical bond between two atoms, where two pairs of electrons are shared. For example, "The oxygen molecule has two double bonds linking it to two hydrogen atoms."

✓ Grammatically correct

Science

Encyclopedias

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The Double Bond.

The New York Times - Books

The double bond then migrates to the α-carbon.

Encyclopedia Britannica

An olefin contains one double bond between two carbon atoms.

Encyclopedia Britannica

double bond.

Journal of Cheminformatics

Ring Double Bond Equivalence.

Journal of Cheminformatics

'd' indicates double bond.

Journal of Cheminformatics

double bond index.

Bioresources and Bioprocessing

Stereochemistry a. double bond   b.

Journal of Cheminformatics

Double-bond stereochemistry is described by the double bond sub-layer (prefixed/b).

Journal of Cheminformatics

This double bond is as reactive as any olefinic double bond [35].

Applied Petrochemical Research

Double bond explicitly marked by user as unknown (cross bonds).

Journal of Cheminformatics

Expert writing Tips

Best practice

When writing about chemical structures, use "double bond" to specifically indicate the presence of two shared electron pairs between atoms. Ensure that the context clearly relates to chemistry or molecular structures to avoid ambiguity.

Common error

Avoid using "double bond" in non-scientific contexts where the term could be misunderstood. For example, in finance or relationships, using "double bond" would be inappropriate and confusing.

Linguistic Context

The phrase "double bond" functions primarily as a noun, specifically referring to a covalent bond in chemistry where two electron pairs are shared between two atoms. Ludwig AI confirms its validity and common usage. The examples illustrate its use in scientific discussions.

Expression frequency: Very common

Frequent in

Science

89%

Encyclopedias

6%

News & Media

3%

Less common in

Formal & Business

1%

Social Media

0%

Wiki

1%

Ludwig's WRAP-UP

In summary, the term "double bond" is a technical noun phrase denoting a specific type of covalent bond in chemistry. Ludwig AI validates its grammatical correctness and high frequency, primarily within scientific and academic contexts. This makes it essential for clear communication in these fields. Related phrases, such as "covalent double bond" or "unsaturated bond", offer slightly different emphases. When using the term, ensure the context is appropriate to avoid misinterpretation. The frequency of this term is "very common" in science.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

covalent double bond

Specifies the type of bond as covalent, emphasizing the sharing of electrons.

carbon-carbon double bond

Specifies that the bond is between two carbon atoms.

unsaturated bond

Focuses on the degree of saturation, highlighting the presence of multiple bonds.

conjugated double bond

Indicates a double bond that is part of a conjugated system.

olefinic bond

Refers specifically to double bonds found in olefins (alkenes).

pi bond

Describes the nature of the bond in terms of pi orbitals.

multiple bond

A more general term encompassing both double and triple bonds.

reactive double bond

Highlights the chemical reactivity associated with the double bond.

electron-rich double bond

Emphasizes the electron density around the double bond.

high-order bond

A more general term to describe multiple bonds that are not single bonds.

FAQs

How is a "double bond" represented in chemical formulas?

A "double bond" is typically represented by two parallel lines (=) between the symbols of the bonded atoms. For example, ethene (C2H4) would be written as CH2=CH2.

What is the difference between a "double bond" and a single bond?

A "double bond" involves the sharing of two pairs of electrons between atoms, resulting in a stronger and shorter bond compared to a single bond, which involves only one pair of shared electrons. The "single bond" can rotate freely.

Are "double bonds" more reactive than single bonds?

Yes, "double bonds" are generally more reactive than single bonds due to the higher electron density and the presence of a pi bond, which is weaker than a sigma bond. They are susceptible to addition reactions.

What are some common examples of molecules containing "double bonds"?

Common examples include ethene (C2H4), also known as ethylene, which is a simple alkene, and carbon dioxide (CO2), where each oxygen atom is connected to the carbon atom via a "double bond".