1. Can I use the First or Second Editions of the Book? They are much cheaper.
2.5 The dreaded dot: Please do not "freak out" over the dot! It is just a place holder, put in to remind you that the orbital "plus.....zero.....minus" in HHH is an orbital for H3, HHH, and is not phiA (plus....minus) of HH! The dot marks an atom at which the sign of the wave function is zero, and can be used whenever that happens. Often that situation occurs in an unoccupied highly antibonding orbital, and nobody really cares much about those. It is always used when it occurs in a bonding or nonbonding orbital in which confusion is possible if you leave it out.
remember : it is just a spacer.
3. Why do we not let the bonding and antibonding MO's of H2 interact in building linear H4?
4. What makes a Good Nucleophile?
5. Where Can I find the three-D molecules?
Ans: http://www.wwnorton.com/orgo3dweb/
6. Transition state or Intermediate? A lot of people are confusing the two. Intermediates "live" in energy wells - are energy minima - and at least in principle, are isolable. Transition states are energy maxima. For example, the carbocations in the SN1/E1 reactions are NOT transition states. The transition state is the "stretched" starting material leading to that intermediate, in which the C-LG bond is lengthened, with a delta plus on C and a delta minus on the LG.
7. How do I build the MOs for linear polyenyl systems (11/05)?