Bridges
A bridge is an unbranched chain of atoms or an atom or a covalent bond connecting two bridgeheads in a polycyclic compound.
The main bridge is a bridge that connects the two main bridgeheads.
A secondary bridge is any bridge not included in the main ring or the main bridge.
An independent secondary bridge links bridgeheads that are part of the main ring or main bridge.
A dependent secondary bridge links at least one bridgehead that is part of a secondary bridge.
Read more about this topic: Bicyclic Molecule
Famous quotes containing the word bridges:
“As night is withdrawn
From these sweet-springing meads and bursting boughs of May,
Dream, while the innumerable choir of day
Welcome the dawn.”
—Robert Bridges (1844–1930)
“... this single span,
Reaching for the world, as our lives do,
As all lives do, reaching that we may give
The best of what we are and hold as true:
Always it is by bridges that we live.”
—Philip Larkin (1922–1986)
“When Death to either shall come—
I pray it be first to me.”
—Robert Bridges (1844–1930)