This problem is for Questions 2 & 3 below. NiBr 4 2- has a flattened tetrahedral

Question

This problem is for Questions 2 & 3 below.

NiBr42- has a flattened tetrahedral geometry (D2d).

NOTE:

Each Br atom uses a pz orbital along the Ni-Br bond in the formation of the each bond.

The Ni2+ valence atomic orbitals (AOs) are s, px, py, pz, dx2-y2, dz2, dxy, dyz, dxz

QUESTION 2

Problem 1-I. Determine the SALCs which must be formed by the set of Br atoms:

A1

A2

B1

B2

E

QUESTION 3

Problem 1-II. The AOs of the Ni2+, that are required to form a set of Ni-Br bonds:

s

px

py

pz

dx2-y2

dz2

dxy

dyz

dxz

subject: chemistry, group theory

A1

A2

B1

B2

E

Explanation / Answer

E=1

A1= 0

A2=0

B1=

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