C&EN

Notational Systems for Structural Formulas

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Scientific Research Publishing

Chemical Structural Formulas of Single-Bonded Ions Using the “Even-Odd” Rule Encompassing Lewis’s Octet Rule: Application to Position of Single-Charge and Electron-Pairs ...

Lewis developed a 2D-representation of molecules, charged or uncharged, known as structural formula, and stated the criteria to draw it. At the time, the vast majority of known molecules followed the ...
Scientific Research Publishing

The Even-Odd Rule on Single Covalent-Bonded Structural Formulas as a Modification of Classical Structural Formulas of Multiple-Bonded Ions and Molecules ()

In classical 2D structural formulas of ions and molecules, single bonds are represented by drawing one line be- tween next neighbor atoms, like in di-hydrogen [1] . Other molecules are represented ...
C&EN

From vital force to structural formulas (Benfey, O. Theodor)

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IEEE

Minimal Control Nodes for Strong Structural Observability of Discrete-Time Iterative Systems: Explicit Formulas and Polynomial-Time Algorithms

Abstract: In this article, we initiate an important class of vertex-marked directed graphs, referred to as the strong structurally observable graphs (SSOGs), to be the fundamental structural ...