nine-membered

Thân thiện

A chemist draws the structure of a nine-membered ring compound.

Definition

1. Adjective:
   • Having a ring structure composed of nine atoms: Used specifically in chemistry to describe a cyclic compound whose ring consists of nine atoms (members).

Usage

• This term is a technical adjective used almost exclusively in chemistry. It classifies the size of a ring structure within a molecule. The "members" are the atoms (e.g., carbon, oxygen, nitrogen) that form the closed ring.

Examples

• Adjective:
  • The chemist synthesized a novel nine-membered lactone.
  • This class of antibiotics often contains a nine-membered ring system.

Advanced Usage

• The term is part of a systematic naming convention for ring sizes in organic chemistry (e.g., three-membered, five-membered, nine-membered).
• It specifies the ring size but not the types of atoms or the presence of double bonds. Further nomenclature is needed for a complete description (e.g., a nine-membered heterocycle).

Variants and Related Words

• Ring: (n) The cyclic structure itself.
• Cyclic compound: (n) A general term for any molecule containing one or more rings of atoms.
• Member: (n) In this context, refers to an atom within the ring.

Synonyms

• Nonatomic (in specific systematic nomenclature, but "nine-membered" is the standard descriptive term).

Related Phrases / Compound Terms

• Nine-membered ring: (n) The specific ring structure itself. This is the noun phrase from which the adjective "nine-membered" is derived.
  • The stability of a nine-membered ring can be influenced by ring strain.

Học thuật

Adjective

1. of a chemical compound having a ring with nine members

Từ đồng nghĩa

• 9-membered