109年 - 109 國立嘉義大學_碩士班招生考試試題_應用化學系：無機化學#146609

科目：研究所、轉學考(插大)◆無機化學 | 年份：109年 | 選擇題數：0 | 申論題數：9

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所屬科目：研究所、轉學考(插大)◆無機化學

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申論題 (9)

1. (a) Calculate the bond order of CN–?
(b) Is this compound paramagnetic or
diamagnetic？
2. OCN– has three possible structures, O=C=N–
, O-C≡N–
, and O≡C-N–
,
(a) Determine the formal charge for O and N in each structure
(b)Predict which one among the three structures is the most reasonable one?
3. (a) By using the Slater’s rules to determine the Z* for 4f electrons in Ce (Z=58) and
Nd(Z=60). Both elements are the lanthanide series elements.
(b) Which atom has the smaller Z* value for 4f electrons?
4. Use Cu (II) (d 9
) , and Cr (II) (d 4
low spin), to explain the Jane-Teller effect applied
in these two cases. For example, Cu(II), usually is an octahedral with elongation
distortion, but an octahedral with tetragonal distortion is assigned for Cr(II) low spin.
5. Calculate the spin-only moment μs for the following atoms and ion.
(a) Fe
(b) Fe 2+ (c)Cu