• meta-synthesis
• About
  About meta-synthesis Reviews Products & Services Contact Us FAQs
• Our Websites
  The INTERNET Database of Periodic Tables The Chemogenesis Web Book The Chemical Thesaurus Chemistry Tutorials & Drills The Truncated Tetrahedron Orange Gate Journal George Truefitt FRIBA Mac Ruff's PNG Sketchbooks MRL's Bow Tuning Page
• Web Book Chapters
  Web Book Home Page | Chemogenesis Main Index Foreword:  Chemogenesis & Chemical Education Part I   Atoms | Elements | Periodic Tables 1.1  Introduction to Chemogenesis 1.2  Nucleosynthesis of The Elements 1.3  The Segrè Chart 1.4  Quantum Numbers to Periodic Tables 1.5  The Periodic Table: What Is It Showing? 1.6  The INTERNET Database of Periodic Tables 1.7  Periodicity Part II   Structure | Bonding | Material Type 2.1  Mono-Bond Typed Binary Compounds 2.2  Binary Compound Synthlet 2.3  Electronegativity 2.4  van Arkel-Ketelaar Triangles of Bonding 2.5  Tetrahedra of Structure, Bonding & Material Type 2.6  Structure, Bonding & Material Synthlet 2.7  The Classification of Matter: Chemical Stuff Part III   Interactions | Reactions | Mechanisms 3.1  The Chemogenesis Analysis: An Overview 3.2  Lewis and Brønsted Models of Acidity 3.3  The Hard Soft [Lewis] Acid Base Principle 3.4  Main Group Elemental Hydrides 3.5  Five Hydrogen Probe Experiments 3.6  Congeneric Dots, Series & Planars 3.7  Quantifying Congeneric Behaviour 3.8  Ligand Replacement Congeneric Series 3.9  Congeneric Array Interactions 3.10  Emergence of Organic Chemistry 3.11  Congeneric Array Database 3.12  The Five Reaction Chemistries 3.13  Lewis Acids & Lewis Bases: A New Analysis 3.14  The Lewis Acid/Base Interaction Matrix 3.15  Patterns in Reaction Chemistry Poster 3.16  Lewis Acid/Base Interaction Matrix Database 3.17  Nucleophiles, Bases & The Fluoride Ion 3.18  Redox Chemistry 3.19  Redox Chemistry Synthlet 3.20  Radical Chemistry 3.21  Diradical Chemistry 3.22  Photochemistry 3.23  Species/Species Interactions 3.24  The Simplest Mechanistic Step: STAD 3.25  Unit & Compound Mechanistic Steps 3.26  The Mechanism Matrix 3.27  Addition To A Double Bond Synthlet 3.28  Pericyclic Reaction Chemistry Part IV   Chemical Theory 4.1  Why Do Chemical Reactions Occur? 4.2a  Thermochemistry: List Reactions Synthlet 4.2b  Thermochemistry: Play With Reaction Synthlet 4.2c  Thermochemistry: Bulid A Reaction Synthlet 4.3  Timeline of Structural Theory 4.4  Modern Lewis Theory 4.5  Valence Shell Electron Pair Repulsion: VSEPR 4.6  Diatomic Species by Molecular Orbital Theory 4.7  Polyatomic Species: Molecular Orbitals 4.8  Organic π-Systems 4.9  Functional Group Database Part V   Complexity & Emergence 5.1  Chemistry & Complexity: Systems 5.2  Linear Chemistry Systems 5.3  Chemical Systems Prone to Complexity Part VI   Extras 6.1  Chemogenesis Videos 6.2  Chemical Thesaurus Reaction Chemistry Database 6.3  Paper: Chemogenesis 6.4  Paper: Electronegativity as a Basic Elemental Property (FoC) 6.5  Workshop: What is Chemistry? 6.6  Paper: Scientific laws, Dalton’s postulates, chemical reactions
          and Wolfram’s NKS (FoC) 6.7  Literature References & Further Reading

Periodic Table T-Shirts & more from the meta-synthesis   See More   Merch Store

---

Poster

Nucleophiles & Bases

Lewis Acid/Base Interaction Matrix Database

---

Type 19 Lewis Acid/Base Complexation Chemistry
Nucleophilic Attack on π-Systems
Bonding:	Complexation leads to normal covalent and/or polar-covalent bonding.
Charge:	Complexes may be negatively charged, positively charged or they may be neutral.
Chemistry:	Nucleophilic attack, usually in an ambidentate manner, upon the π-LUMO Lewis Acid. One way to form π-LUMO Lewis Acids is to have a nucleofugal leaving group attached to a pro- π-LUMO Lewis Acid. Proton abstracters remove H+ to form the corresponding π-system.
Congeneric Series:	A number of interacting congeneric series are known, for example, phenyl methane carbenium ion/halogen anion complexes: Chloride and other halogen anion nucleofuges are more easily substituted by hydroxide ion nucleophiles as –NO2 electron withdrawing group (EWG) functions are added (ortho and para) to the Nfg:

Type 19 Lewis acid/base complex (generic)
	Allyl alcohol more here
	Benzene diazonium ion more here
	Benzyl bromide more here
	Benzyl isocyanide more here
	Diazonium ion (generic) more here
	Triphenylmethyl chloride more here