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Chapter 23: Q82P (page 1022)

A metal ion uses d2sp3 orbitals when forming a complex. What is its coordination number and the shape of the complex?

Short Answer

Expert verified

The coordination number is 6 and the shape of the complex is octahedral.

Step by step solution

01

Valence bond theory will be used here 

Valence bond theory explains to us that the ligand's orbital that is filled overlaps with the empty orbital of the metal ion; ligands donate their electron pairs, the metal ion accepts them and the coordination covalent bond is formed.

02

Coordination number and shape of the complex

When metal ion uses d2sp3 orbitals when forming a complex, it means that there are two 3d, one 4s, and three 4p orbitals mixed to form six d2sp3 hybrid orbitals. Thus, the coordination number of the metal ion would be 6 and the shape of the molecule is octahedral.

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Most popular questions from this chapter

In what order are the metal ion and ligands given in the name of a complex ion?

You know the following about a coordination compound:

(1) The partial empirical formula isKM(CrO4)Cl2(NH3)4

(2) It has A(red) and B(blue) crystal forms.

(3) When1.0molof Aor B reacts with1.0molofAgNOH30.50molof a red precipitate forms immediately.

(4) After the reaction in (3),1.0molofA reacts very slowly with1.0molof silver oxalate(Ag2C2O4)to form2.0molof a white precipitate. (Oxalate can displace other ligands.)

(5) After the reaction in(3),1.0molof Bdoes not react further with I.0 mol ofAgNO5

From this information, determine the following:

(a) The coordination number of M

(b) The group(s) bonded to Mionically and covalently

(c) The stereochemistry of the red and blue formulas

How many d electrons (n of dn) are in the central metal ion in

(a) [RuNH35Cl]SO4;(b) Na2[Os(CN)6]; (c) [CoNH34CO3I]?

In what order are the metal ion and ligands given in the name of a complex ion?

Werner prepared two compounds by heating a solution ofPtCl2with triethyl phosphine, PC2H53which is an excellent ligand for Pt. The two compounds gave the same analysis: Pt, 38.8%, Cl,14.1%, C,28.7%, P,12.4%and H,6.02%. Write formulas, structures, and systematic names for the two isomers.
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