02soln_C357_PPS_2_solutions_2007

02soln_C357_PPS_2_solutions_2007 - 2 C C N CH 2 H O C O H O...

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

View Full Document Right Arrow Icon
C357 PPS#2 Solutions Page 1 of 3 1) H H He He ! ! !" !" Hydrogen fills only the bonding MO, whereas Helium must use the antibonding MO in order to accommodate all of the electrons. Thus, H 2 is more stable than two H atoms, whereas He 2 doesn’t gain any stability over two He atoms and does not form. 2) Draw in 3D fashion the following compounds, showing all bonds and their orientation around the atom. H H H H H H H H H H C C H H O H H H C H H H Cl Cl Cl Cl H H H H O H C H H H Cl Cl Cl Cl Cl Cl H H H H H H H H H H H H H H H H H H
Background image of page 1

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

View Full DocumentRight Arrow Icon
Page 2 of 3 3) Cl Cl Cl Cl Cl Br Cl Cl H O H H H H CH 3 H H Cl CH 3 H H H N H H H H H H H H CH 3 CH 3 H 3 C H 3 C Cl F Br I 4) Cl Cl Cl Cl Cl Br Cl Cl H O H H H H CH 3 H H Cl CH 3 H H H N H H H H H H H H CH 3 CH 3 H 3 C H 3 C Cl F Br I nonpolar nonpolar nonpolar nonpolar polar polar polar polar polar 5) H 3 C C O CH 3 H 3 C C N CH 3 H C C C Cl Cl Cl H C H H C H H H O H O C O carbons are sp 2 carbons are sp 3 sp 3 sp 3 sp 3 sp 3 sp 3 sp 3 sp 3 sp 2 sp 2 sp 2 sp 2 sp 2 sp 2 sp 2 sp 2 sp sp sp sp 2 sp 2 sp 2 sp 2
Background image of page 2
Page 3 of 3 6) Circle the bonds in the compounds below that have free rotation possible around them. H C H H C H H H C C H H C O H 2 C CH 2 H
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2 C C N CH 2 H O C O H O H Cl F Br I All free rotation All free rotation All free rotation H * * * * * H H * * * * * H H * * * denotes bond with free rotation (All C-H bonds) 7) Circle the following compounds where it is possible that cis/trans isomers exist. Next, label the compounds that you have circled as either cis or trans. C C H Cl H H Cl H H Cl Cl H Cl Cl Cl H H 3 C Cl Cl H H 3 C Cl CH 3 Cl C O H H 3 C C N H H 3 C H not possible not possible not possible not possible not possible possible possible possible (resonance) 8) Which compounds of the following group are structural isomers of other compounds shown in the group? Structural Isomers: & & & & &...
View Full Document

This note was uploaded on 09/30/2008 for the course CHEM 3570 taught by Professor Ganem, b during the Fall '06 term at Cornell.

Page1 / 3

02soln_C357_PPS_2_solutions_2007 - 2 C C N CH 2 H O C O H O...

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