Package org.openscience.cdk.reaction.type

Class RearrangementCationReaction

java.lang.Object

org.openscience.cdk.reaction.ReactionEngine

org.openscience.cdk.reaction.type.RearrangementCationReaction

All Implemented Interfaces:

IReactionProcess

public class RearrangementCationReaction
extends ReactionEngine
implements IReactionProcess

IReactionProcess which participate in movement resonance. This reaction could be represented as [A+]-B=C => A=B-[c+]. Due to deficiency of charge of the atom A, the double bond is desplaced.

Make sure that the molecule has the corresponend lone pair electrons for each atom. You can use the method:

 LonePairElectronChecker 

It is processed by the RearrangementChargeMechanism class

  IAtomContainerSet setOfReactants = DefaultChemObjectBuilder.getInstance().newAtomContainerSet();
  setOfReactants.addAtomContainer(new AtomContainer());
  IReactionProcess type = new RearrangementCationReaction();
  Object[] params = {Boolean.FALSE};
    type.setParameters(params);
  IReactionSet setOfReactions = type.initiate(setOfReactants, null);
  

We have the possibility to localize the reactive center. Good method if you want to localize the reaction in a fixed point

atoms[0].setFlag(CDKConstants.REACTIVE_CENTER,true);

Moreover you must put the parameter Boolean.TRUE

If the reactive center is not localized then the reaction process will try to find automatically the posible reactive center.

Author:

Miguel Rojas

See Also:

RearrangementChargeMechanism

Source code:

main

Belongs to CDK module:

reaction

Created on:

2006-05-05

Field Summary

Fields inherited from class org.openscience.cdk.reaction.ReactionEngine

mechanism, paramsMap, paramsMap2

Constructor Summary

Constructors

Constructor	Description
RearrangementCationReaction()	Constructor of the RearrangementCharge2Reaction object

Method Summary

Modifier and Type	Method	Description
ReactionSpecification	getSpecification()	Gets the specification attribute of the RearrangementCationReaction object
IReactionSet	initiate(IAtomContainerSet reactants, IAtomContainerSet agents)	Initiate process.

Methods inherited from class org.openscience.cdk.reaction.ReactionEngine

getParameterClass, getParameterList, setParameterList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.openscience.cdk.reaction.IReactionProcess

getParameterClass, getParameterList, setParameterList

Constructor Detail

RearrangementCationReaction

public RearrangementCationReaction()

Constructor of the RearrangementCharge2Reaction object

Method Detail

getSpecification

public ReactionSpecification getSpecification()

Gets the specification attribute of the RearrangementCationReaction object

Specified by:

getSpecification in interface IReactionProcess

Returns:

The specification value

initiate

public IReactionSet initiate(IAtomContainerSet reactants,
                             IAtomContainerSet agents)
                      throws CDKException

Initiate process. It is needed to call the addExplicitHydrogensToSatisfyValency from the class tools.HydrogenAdder.

Specified by:

initiate in interface IReactionProcess

Parameters:

reactants - reactants of the reaction.

agents - agents of the reaction (Must be in this case null).

Returns:

the set of reactions.

Throws:

CDKException - Description of the Exception