1 / 6

Complex Compounds:

Complex Compounds:. What are they: Central metal cation Attached ligands (molecules or anions) Coordination Number : defines the # ligands (Useful link) http://www.chem1.com/acad/webtext/chembond/cb09.html. Complex Compounds:. Cation : Lewis Acid (electron pair acceptor)

randy
Download Presentation

Complex Compounds:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Complex Compounds: What are they: Central metal cation Attached ligands(molecules or anions) Coordination Number: defines the # ligands (Useful link) http://www.chem1.com/acad/webtext/chembond/cb09.html

  2. Complex Compounds: Cation: Lewis Acid (electron pair acceptor) Generally a transition metal cation Also common: Al, Sn, Pb Ligand: Lewis Base (electron pair donor) Common ligands: NH3, H2O CN-, Cl-, OH-

  3. Understanding net charge: Overall charge of coordinate compound/ion is determined by the sum of the charges on the metal and the attached groups. Ex: Al(NH3)6+3 Al (OH)6-3

  4. Coordination Geometry Guideline for common compounds/ions

  5. Nomenclature- complex compounds • Salts: name the cation first and then the anion • Complex ion or molecule: name the ligand first followed by metal • Table of common ligands: Example: [Cu(NH3)4]SO4 = tetraamminecopper(II) sulfate

  6. Colors and Coordination compounds • Attachment of ligands causes split of the electrons in the d-orbital to a low/high energy. • The energy separation (Δ) of these electrons provide unique colors: F-, Cl-,Br-< C2O42-< H2O< NH3<CN- • http://www.youtube.com/watch?v=cdRr12iJSWU • Many examples of color & coordinatecompounds: • http://www.youtube.com/watch?NR=1&feature=endscreen&v=RFwcdqkq1CI

More Related