INORGANIC CHEMISTRY Flashcards
What is a dative bond?
A dative bond is a bond between a metal (lewis acid) and a ligand (lewis base)
What is a coordination bond?
A coordination bond is a bond between a transition metal (lewis acid) and a ligand (lewis base)
What is a ligand?
A ligand is a lewis base which donates electrons
AWhat is a complex?
A complex is the product formed when 1+ ligands become associated with a metal atom/ion via the formation of dative coordination bonds
What do transition metals prefer to form?
Positively charged cations because electrons in the d-orbital are easily ionized
What is a monodentate ligand?
A monodentate ligand donates 1 electron pair per ligand
What is a bidentate ligand?
A bidentate ligand donates 2 electron pairs
What is a tridentate ligand?
A tridentate ligand donates 3 electron pairs
What are the steps to counting electrons?
- Determine the # ligand e-
- (# ligands)(2 e-)
- Determine L charge
- Based off chart
- Determine M charge
- Balances out with L charge to total complex charge
- Determine # M e-
- # M e- = (# valence e-) - (M charge)
- Determine total # e-
What geometry works best for catalysts?
Square planar because catalysts require an open d-orbital
16 e-
Which geometry has 16 electrons?
Square planar
Which geometry has 18 electrons?
Octahedral
What is the e- count and L charge for F, Cl, Br, I
2 e- and -1 charge
What is the e- count and L charge for H, CH3, PH
2 e- and no charge
What is the e- count and L charge for CO and H2O
2 e- and no charge
