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**Understanding Ln(III) Chemistry: Coordination and Emission** Explore properties and bonding of Ln(III) complexes, emph

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**Understanding Ln(III) Chemistry: Coordination and Emission** Explore properties and bonding of Ln(III) complexes, emph

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  1. Title Authors

  2. Page Title • Text in 32 pt or smaller down to 20 pt • Avoid too many colors • Avoid too many animations • No typos • Correct scientific language

  3. ChemDraw drawings • in ChemDraw, use ACS settings • copy drawing to presentation and reduce size to 90% • One X-ray structure per slide • Tables showing only minimal/necessary data • Spectra made with Origin • Use 2 pt line thickness in Origin • Reduce graph size in presentation to 70%

  4. Chemistry and properties of Ln(III) • Oxidation state +III is most common • Hard acids • Prefer hard donor atoms O>N>>P,S • Large cations • Large coordination numbers • Core 4f electrons • Omnidirectional/ionic bonding • Coordination numbers dictated by steric bulk of ligands • Similar ionic radii • Magnetism • Light emission due to f-f transitions • Core 4f orbitals • Characteristic emission colors • Sharp emission bands • f-f transitions forbidden by selection rules CN 6: rion Ce3+=115.0 pm rion Lu3+=100.1 pm

  5. Antenna effect

  6. Tm(III) Eu(III) Tb(III) Emission colors 5D0→7F2 ~615 nm 5D4→7F5 ~545 nm 1G4→3H6 ~480 nm

  7. Funding Agencies Postdocs Graduate students Undergraduate students Acknowledgments

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