Public access ACE pages
How to author questions in ACE.
ACE Mechanism calculator. Calculate the products of a mechanistic step involving one or more compounds and electron-flow arrows.
ACE Standardizer. See how ACE standardizes structures that have multiple correct representations (such as ylides).
ACE Functional-group finder. Find which functional groups a compound contains.
ACE Rotation about bonds. Designate a particular dihedral angle for a bond in a 3D structure.
ACE Chair flip. Flip to the other chair conformer of a substituted saturated six-membered ring.
ACE Chair or half-chair flip. Flip to the other chair or half-chair conformer of a substituted saturated or monounsaturated six-membered ring. (For saturated compounds, we recommend the ACE Chair flip page instead of this one.)
ACE Stereocenter configuration inversion. Invert the configurations of selected sp3 stereocenters in a 2D or 3D structure, or get the structure's mirror image.
ACE Stereoisomer generation. Convert a compound with unspecified configurations at its stereocenters into all stereoisomers.
ACE Pericyclic mechanism calculator. Determine whether any of the steps of a mechanism with electron-flow arrows are pericyclic.
ACE Hybridization calculator. Find the hybridization of each atom in a compound.
ACE Parity calculator. Find the parity of each atom in a compound.
ACE Bond stereochemistry flags calculator. Find the stereochemistry flags of each bond in a compound.
ACE pKa calculator. Find the pKa of each atom in a compound.
ACE contiguous C atom calculator. Find the largest set of contiguous C atoms in a compound.
JChem® structure comparator. See how JChem® (as opposed to ACE) compares two structures.
ACE substructure and skeleton comparator. See whether ACE finds that a structure contains a particular substructure or skeleton.
ACE conformer comparator. Compare two conformers with ACE.
ACE periodic table tester. Get various properties of an element.
ACE toDisplay() tester. See how ACE will display an expression that an author types into a question statement or feedback.
A Web-based homework program that uses many of these tools can be found here.