ILigand (cdk 2.9 API)

All Known Implementing Classes:

ImplicitHydrogenLigand, Ligand
```
public interface ILigand
```
Concept of a ligand in CIP terms, reflecting a side chain of a central atom that can have precedence over another.

Source code:
main

Belongs to CDK module:
cip

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`IAtomContainer`	`getAtomContainer()`	`IAtomContainer` of which this ligand is part.
`IAtom`	`getCentralAtom()`	The central `IAtom` to which this ligand is connected via one `IBond`.
`IAtom`	`getLigandAtom()`	`IAtom` of the ligand that is connected to the central `IAtom` via one `IBond`.
`VisitedAtoms`	`getVisitedAtoms()`	Returns a list of visitedAtoms.
`boolean`	`isVisited(IAtom atom)`	Returns a true if the atom has been visited before.

- Method Detail
  - getAtomContainer
```
IAtomContainer getAtomContainer()
```
    IAtomContainer of which this ligand is part.
    
    Returns:
    
    the IAtomContainer
  - getCentralAtom
```
IAtom getCentralAtom()
```
    The central IAtom to which this ligand is connected via one IBond.
    
    Returns:
    
    the central atom
  - getLigandAtom
```
IAtom getLigandAtom()
```
    IAtom of the ligand that is connected to the central IAtom via one IBond.
    
    Returns:
    
    the ligand atom
  - getVisitedAtoms
```
VisitedAtoms getVisitedAtoms()
```
    Returns a list of visitedAtoms.
    
    Returns:
    
    a VisitedAtoms list with visited atoms
  - isVisited
```
boolean isVisited(IAtom atom)
```
    Returns a true if the atom has been visited before.
    
    Parameters:
    
    atom - the atom to be analyzed
    
    Returns:
    
    true if the IAtom is the chiral atom, or part of the ligand