ABC graphs

ABC graphs in chemistryEdit


Vladislav Ivaništšev


ABC graphs is a general name for diagrams showing Atom symbols, Bonding paths, atomic Charges, lone electrons (with Dots), and empty orbitals (with Ellipsis). Specific information shown on a given diagram is reflected in its name, so one may refer to AB, ABC, ABCD or ABCDE graphs.

An AB graph is a molecular graph analogues to a ball-and-stick model, yet it shows atoms with symbols and bonding paths with single lines (instead of balls and multiple sticks).

For all graphs more complicated than AB, let us agree that each drawn line corresponds to a σ-bond sharing of a pair of electrons. Then, to draw a structure one should use simple rules for determining the atomic charges, number of lone electrons, and empty orbitals.

Acronym and definitionsEdit

Rules for drawing ABC graphsEdit

Drawing examplesEdit

AB graph drawing examplesEdit

ABC graph drawing examplesEdit

ABCD graph drawing examplesEdit

ABD graph drawing examplesEdit

ABCDE graph drawing examplesEdit

Structure–property relationsEdit

ABC-type graphs and acid-base chemistryEdit

ABC-type graphs and redox chemistryEdit

Chemistry of elementsEdit

Sulfur chemistryEdit

Disclaimer: This book is in the writing progress. Content will be added upon publications in manuscripts and scientific journals.