Coordination chemistry

[Cr(H₂O)_6]³⁺

[Mn(H₂O)₆]²⁺

[FeCl₄]^2-

[TiF₆]^3-

Square pyramidal

Square bipyramidal

 Tetrahedral

Square planar

An atom

 Neutral complex

Cationic complex        

Anionic complex

sp³d² hybridisation

d²sp³ hybridisation

sp³d hybridisation

sp³ hybridisation

Ni(CO)₄

V(CO)₆

Cr(CO)₆

Fe(CO)₅

[Pd(Cl)₄]^2–

[Ni(CN)₄]^2–

[Pd(CN)₄]^2–

[Ni(Cl)₄]^2–

SCN^–

I^–

S^2–

NO₂^-

s, p_x, p_y, p_z and

d_{x² -y²}

s, p_x, p_y, d_{x² -y²} and

d_z²

s, p_x, p_y, p_z and

d_z²

s, p_x, p_z, d_xy and

d_{x² -y²}

1

2

3

4

lewis base and lewis acid

lewis acid and lewis base

both lewis base

bothlewis acid