HW6 - Homework#6 Y o u r N a m e Due on Monday November 14...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Homework #6 Y o u r N a m e : Due on Monday, November 14, before the lecture. Only two problems will be graded explicitly. The last problem is optional. zero) Color of our blood: Hemoglobin (abbreviated Hgb) is the oxygen-transport metalloprotein in the red blood cells of all vertebrates. A complex of a heme group with Fe, known as a porphyrin (its structure is shown below), is a chromophore that gives blood its color. We can apply the model of particle in a two-dimensional box to model the electrons in the porphyrin. a) Using the approximate dimensions of Hgb shown above, and the fact that this complex has 30 electrons, calculate the energy for the molecule to be excited from the ground state (lowest energy state) to the first excited state, and the wave length of the corresponding photon. Hint: be careful in how you choose quantum numbers n x and n y for electronic states in a 2-D box; for your convenience, the following table gives the values of n x and n y corresponding to the state #: # electron pairs n x n y 1 1 1 2,3 (degeneracy = 2) 2 1 1 2 4 2 2 5,6 (degeneracy = 2) 1 3 3 1 7,8 (degeneracy = 2) 2 3 3 2 9,10 (degeneracy = 2) 4 1 1 4 11 3 3 12,13 (degeneracy = 2) 4 2 10.0 Å 10.0 Å 2 4 14,15 (degeneracy = 2) 4 3 3 4 16 4 4 17 (degeneracy = 2) 5 1 1 5 Etc… Useful constants and units: h = 6.626 x 10-34 J...
View Full Document

This note was uploaded on 12/05/2011 for the course CHEM 113A taught by Professor Lin during the Fall '07 term at UCLA.

Page1 / 6

HW6 - Homework#6 Y o u r N a m e Due on Monday November 14...

This preview shows document pages 1 - 3. Sign up to view the full document.

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