Reaction Scheme

The following instructions target users who are unfamiliar with OpenChemLib chemical editor. Feel free to check the Help in the editor first for detailed explanations.

For those who just need a Copy & Paste:
then (left: reactant; right: product): across different entries.
: within the same editor
Or use the Lasso Pointer Tool to select the target molecule, hold 'Shift' and drag the molecule to create a copy

Walkthrough

Explanation of tools

Button	Function	Explanation
	Copy RXN V3000 to clipboard	Copy the chemical equation that can be pasted directly in ChemDraw or ChemSketch
(Left)	Add reactants from clipboard (RXN, SMILES or ID Code)	Paste reactants copied with or from e.g. ChemDraw (Copy as SMILES recommemded) can be pasted here
(Right)	Add product from clipboard (RXN, SMILES or ID Code)	Paste product copied with or from e.g. ChemDraw (Copy as SMILES recommemded) can be pasted here
	Help	Detailed explanations of the chemical editor
	Copy product or reagent as molfile	Copy any molecule in the editor as molfile, can be pasted in e.g. Chemdraw
	Copy reagent	Copy and paste any molecule directly within the same editor
	Show fullscreen	Open editor in fullscreen mode (press Esc to exit)
	Clear Page	Clear all elements in the editor
	Undo	Undo last action
	Cleanup button	Clean up the equation or only the selected molecule
	Zoom and Rotate Tool
	Lasso Pointer Tool	Use by: 1. Dragging the cursor around atoms of choice; 2. Double clicking any atom or bond in a molecule; 3. pressing and holding 'alt' for retangle selection; Single selection within one molecule is also allowed. Selected atoms or fragment can be dragged and moved across the editor. Reactants are labeled with alphabets and placed on the left of the reaction arrow; products are labeled with 'P1', 'P2' etc. and placed on the right side. To unselect click any empty area in the editor To create a copy select the target molecule, then drag the selected fragment while pressing and holding 'Shift'.
	Mapping Tool
	Unknown Configuration Tool	Label unknown stereo configuration at a chiral centre
	ESR (enhanced stereo recognition) Tools	Click multiple times to select different modes. Absolute configuration or belongs to a group of stereo centers that have the drawn, but relative configuration. Both the drawn and inverse configurations of the relative stereo centres are present. Either the drawn or the inverse configuration is present. The indicator group numbers show which stereo centers belong to the same group.
	Delete Tool	Delete a single atom or a bond. Alternatively press 'Delete' while pointing at the target atom or bond
	Text Tool
	Bond Tools	Click onto an atom or anywhere in the editor to create C-C single bond, click the created bond multiple times for different bond orders: double bond, cross bond (unknown configuration) and triple bond. Chain Tool: a handy tool for long carbon chains Stereo bonds
	Ring Tools	Available from 3 members ring to 7 members ring and benzene Ring. Create polycyclic structures by adding rings at an atom or at a bond
	Charge Tool	Amend the charge of the atom by 1. Alternatively press '-' or '+' while pointing at the target atom.
	Atom Tool	Select the tool and click anywhere in the editor to add the atom. Alternatively type the chemical symbol on keyboard (case insensitive) while pointing at the target atom.
	Atom Detail Tool	Upon selection of the tool a dialogue window would be opened. Atom label may be specified with different conditions (e.g. radical state). While the tool is still selected the customized conditions can be further applied by clicking the target atoms directly.

Tips and Tricks

Enter a chemical symbol to change the atom

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Coordinate covalent bond It can be useful to denote special bond types between metals and ligands in metal complexes. Our editor can handle that.

The chemical structure editor (OpenChemLib) allows drawing coordinative covalent bonds. In order to draw a 'zero order' bond you need to first draw a single bond between an atom and a metal. With the single bond drawing tool selected you can then click on the bond a couple of times in order to get the dotted bond.