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

(a) Calculate the bond order of CN^–?

(b) Is this compound paramagnetic or diamagnetic？

(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?

(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.

(a) Fe

(b) Fe ²⁺

(c)Cu