课程名称︰普通化学甲上 课程性质︰物理系必修 课程教师︰陆骏逸 开课学院：理学院 开课系所︰物理系 考试日期（年月日）︰2012/01/11 考试时限（分钟）：140 min 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : 1. (20 pts) Write down the chemical formulae of the following compounds. a. cis-4-octene b. 3-Propyl-2-hexene c. 2,3-Dimethyl-3-ethylheptane d. sodium hexacyanoferrate(II) e. triaquabromoplatinum(II) chloride 2. (15 pts) Alkyl halides can be formed by irradiating UV light on the mixture of alkanes and halogens. Describe the reaction mechanism of such reaction. 3. (20 pts) Consider the molecular orbital method, and valence bond theory. Write down the two electron (ground state) wave functions of H2 molecule for the two different theories. Compare the similarity and the difference of the two theories. 4. (10 pts) Draw the correlation diagram of O2 molecule. Is it diamagnetic or paramagnetic? Why? 5. (15 pts) The ion Co 3+ forms coordination compounds with ligand NH3 and Cl-. + One of the compound is denoted as [Co(NH3)4Cl2] (Cl-) by Werner. Why did he distinguish the different chloride ions? What is the experimental basis for making such distinction? 6. (30 pts) Consider the πsystem of the 1,3-butadiene. Use the 2p atomic orbitals φ_1, φ_2, φ_3, and φ_4 to construct the approximate MO wave function ψ ≒ C1 φ_1 + C2 φ_2 + C3 φ_3 + C4 φ_4. Suppose that H11 = H22 = H33 = H44 = -5 eV, H12 = H23 = H34 = -3 eV, H13 = H14 = H24 = 0, S12 = S13 = S14 = S23 = S24 = S34 = 0. Calculate the energies and the relative coefficients of the four molecular orbitals. Draw the MO wave functions. (Hint: You may consider separately the ''odd function'' where C1 = -C4, C2 = -C3, and the ''even function'' where C1 = C4, C2 = C3.) 7. (15 pts) How does one determine the spectrochemical series experimentally? 8. (20 pts) The ligand H2O makes high spin [Mn(OH2)6]2+ coordination complex whereas CO malkes a low spin complex [Mn(CO)6]2+. Draw the suitable MO diagrams to explain the origin of the difference. --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 140.112.4.202