---
title: "Meaning & Key Takeaway of: [The] structural theory is of extreme…"
description: "\"“[The] structural theory is of extreme simplicity. It assumes that the molecule is held together by links between one atom and the next: that every kin..."
image: "https://sms4smile.com/quotes/i/0d0/nevil-vincent-sidgwick-133243_chemistry_the-structural-theory-is-of-extreme-simp_403895.jpg"
---

#  \[The\] structural theory is of extreme simplicity. It…

![“[The] structural theory is of extreme simplicity. It assumes that the molecule is held together by links between one atom and the next: that every kind of atom can form a definite small number of such links: that these can be single, double or triple: that the groups may take up any position…” quote by Nevil Vincent Sidgwick](https://sms4smile.com/quotes/i/0d0/nevil-vincent-sidgwick-133243_chemistry_the-structural-theory-is-of-extreme-simp_403895.jpg)   [Download](https://sms4smile.com/quotes/i/0d0/nevil-vincent-sidgwick-133243_chemistry_the-structural-theory-is-of-extreme-simp_403895.jpg) [Open image](https://sms4smile.com/quotes/i/0d0/nevil-vincent-sidgwick-133243_chemistry_the-structural-theory-is-of-extreme-simp_403895.jpg)

> ““\[The\] structural theory is of extreme simplicity. It assumes that the molecule is held together by links between one atom and the next: that every kind of atom can form a definite small number of such links: that these can be single, double or triple: that the groups may take up any position possible by rotation round the line of a single but not round that of a double link: finally that with all the elements of the first short period \[of the periodic table\], and with many others as well, the angles between the valencies are approximately those formed by joining the centre of a regular tetrahedron to its angular points. No assumption whatever is made as to the mechanism of the linkage. Through the whole development of organic chemistry this theory has always proved capable of providing a different structure for every different compound that can be isolated. Among the hundreds of thousands of known substances, there are never more isomeric forms than the theory permits.””

[Nevil Vincent Sidgwick](https://sms4smile.com/quotes/author/nevil-vincent-sidgwick/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Molecules are built from simple link types, allowing predictable structures and limited isomerism

**In simple terms:** Simple linking rules define molecular structures

Key Takeaway

Use structural theory to predict chemistry

Themes

chemistry organic chemistry periodic table science simplicity structural theory theory tetrahedron geometry

Mood

analytical educational

Type

Chemistry:1 Organic chemistry:1 Periodic table:1 Science:1 Simplicity:1 Structural-theory:1 Theory:1 Structural Theory:0 Chemistry Theory:0 Tetrahedron Angular:0 Molecule Held:0 Mechanism Linkage:0

When to use this quote

- academic teaching
- research design
- drug discovery
- educational curricula

Key Concepts

bonding theory structural modeling chemical prediction

Questions to Reflect On

- How does this theory simplify learning chemistry?
- What are its limits in modern chemistry?

A Different Perspective

Theory may not account for complex quantum effects

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[Chemistry](https://sms4smile.com/quotes/about/chemistry/) [Chemistry Theory](https://sms4smile.com/quotes/about/chemistry-theory-3615042/) [Mechanism Linkage](https://sms4smile.com/quotes/about/mechanism-linkage-3615045/) [Molecule Held](https://sms4smile.com/quotes/about/molecule-held-3615044/) [Organic chemistry](https://sms4smile.com/quotes/about/organic-chemistry/) [Periodic table](https://sms4smile.com/quotes/about/periodic-table/) [Science](https://sms4smile.com/quotes/about/science/) [Simplicity](https://sms4smile.com/quotes/about/simplicity/) [Structural Theory](https://sms4smile.com/quotes/about/structural-theory-1499055/) [Structural-theory](https://sms4smile.com/quotes/about/structural-theory-179265/) [Tetrahedron Angular](https://sms4smile.com/quotes/about/tetrahedron-angular-3615043/) [Theory](https://sms4smile.com/quotes/about/theory/)

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