課程性質︰選修
考試時間︰2004. 6.16
試題 :
1.Construct the molecular orbitals(MO) of H2; LiH and HF respectively.
Compare the chemical bond (bond type;bond polarity and electron density
distribition) between these three compounds.
2.N2 and CO is iso-electronic; illustrate the respective MOs and correlate
these to their Lewis structures. Why is CO a more common ligand in
coordination complexes than N2?
3.For BeH2; AlH2; CH2 and OH2 which ones are linear and which ones are bent,
why? What about their mono-cation species?
4.Compare the MOs of BH3 and NH3; explain the geometry difference in terms of
orbital correlation diagram (Walsh diagram)
5.Try to work out the π-MOs of cyclo-pentadienyl, C5H5, is it a stable
compound according to the π-electron populations? Is C5H5+ or C5H5- more
stable than C5H5? Why?
6.When an H4 molecule is distorted to a rectangular from a square geometry,
predict such distortion will yield a more favorable geometry for the
elextronic configuration? What is HOMO like in these two geometries?
Similarity, what do you predict will be the geometry of cyclobutadiene, C4H4
?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 218.169.41.230