25 - Chemistry 11500 Lecture 25 Electronic structure of...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chemistry 11500 Lecture 25 Electronic structure of solids and Nanoparticles Reading pp. 452-456, 466-468
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 This Week in Chemistry Attend lecture, lab, recitation. Homework Assignment H13 is due 12/2 Assignment H14 is due 12/9 Final, Tuesday 12/15, 8:00 AM (morning!) Hall of Music, 2 hours Pencil, PUID, non-programmable calculator, seat location
Background image of page 2
3 Evaluations Online, in your Purdue email Provide feedback What helped you learn? Lecture, homework, learn smart modules, lab, recitation, etc. What do you suggest? What should we stop doing
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Gold Nanoparticles Lab HAuCl 4 + Na 3 C 6 H 5 O 7 Hydrogen tetrachloroaurate(III) + sodium citrate gold nanoparticles -- Au(s) (a colloid)
Background image of page 4
5 Left: A transmission electron micrograph (TEM) of 13 nm‐diameter Au nanoparticles. Right: An illustration of an Au nanoparticle surface. Each nanoparticle is made of many (more than 500,000) Au atoms. Citrate anions cover the nanoparticle surface. http://www.nanoed.org/lessons/Nanotechnology/ColorMyNanoworld_ sample_student_activity.pdf
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Nanoparticle Properties The color of gold nanoparticles in solution depends on their size and shape. How can the size of nanoparticles be changed? How does changing their size affect their color?
Background image of page 6
7 Summary from Last Time Crystalline versus amorphous structures Crystalline types: atomic, molecular, ionic, metallic, network covalent Three types of cubic crystal lattices Simple cubic: 1 atom/unit cell Body-centered cubic: 2 atoms/unit cell Face-centered cubic: 4 atoms/unit cell Hexagonal close packing crystal lattice
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How does electrical conduction occur in solids? Electronic structure of solids
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/17/2012 for the course CHM 115 taught by Professor Towns during the Fall '08 term at Purdue University-West Lafayette.

Page1 / 28

25 - Chemistry 11500 Lecture 25 Electronic structure of...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online