Quick Inorganic Chemistry memorization

N type semiconductor

electrons are added

P type

holes (loss of e) holes are added

bronzed lowery acid

proton donor

lewis  acid 

e-  acceptor 

KaKb

Kw

Pka +PKB

Pkw

Storng acids 

HF, HCOOH, CH3OOH, H20

Acidiry increase with

decrease electronegativity

Acidity increases

with atomic size

basicity increases

N is more rich (no groups electronegative pull aways the richness) and methyl increases basciltity but dont do it that causes steric affects

polarizable acids and bases

soft

HOMO

Acid

LUMO

base

delta

clockwise 

lambda

anticlowise

Octahedra MA2B2Cl2

6 isomers

cis in octahedral

creates entaimors

Magnetic suspecibiltiy 

square root of 4S(S+1)

square planar

(XZ- YZ)(Z²)(XY)(X2-Y2)

TRIGONAL BIPYMIRDAL

(XZ YZ) (X2-Y2 XY) (Z2)

SQAURE PYRMAIDAL 

(XZ. YZ) (XY) (Z²) (X2-Y2)

For metals what is MO

(Eg T2g) (A1g) (T1u)

Normal for octahedral same ligands

Eg + T1u + A1u

In Mo tetrahedral it is 

T2g and eg star 

pi backhanding causes

weakens ligands

Are weak-field ligands associated with a large or small Δ₀ (crystal-field splitting)?

Small Δ₀

Do weak-field ligands produce high-spin or low-spin complexes?

High-spin

Are weak-field ligands generally π donors or π acceptors?

π donors

Do weak-field ligands cause the t₂g orbital energy to increase or decrease?

t₂g star orbitals increase slightly (less stabilized → smaller gap)

Donar ligands

I-, br-, cl-, oh-, rco2-

Sigma only ligands

F-, H2O, NSC-, EN

pi acceptor ligands

NO2-, PHEN CN-

Increases oxidation number 

delta o increases 

down a group what happens to delta

it increases

4d and 5d

low spin

Molecular formula of  Neutral ligands 

NH3, H2O, CO, NO, CH3NH2, C5H5N, EN ox2-, EDTA, pR3

Give examples of strong-field ligands.

CN⁻, CO, NO₂⁻, PPh₃, en (ethylenediamine)

Give examples of common charged ligands.

Cl⁻, Br⁻, I⁻, OH⁻, CN⁻, NO₂⁻, NCS⁻.

Why can you have unpaired spins across non-degenerate orbitals?

Because whether electrons pair or remain unpaired depends on the balance between pairing energy and crystal-field splitting energy (Δ₀), not just orbital degeneracy.

When does the Jahn–Teller effect occur?

When a nonlinear molecule has unequal occupancy of degenerate orbitals (like e_g or t_2g).