INO-00 · laboratory
Pauling, Allred–Rochow, Kapustinskii, CFSE and Goldschmidt.
Watch on YouTube
Free library
Full libraryFree PDF / open book
YouTube channels
28 governing sheets
|χA − χB| = √(DAB − √(DAA DBB)) with D in eV.
Bondingχ_AR = 0.359 Zeff / r² + 0.744 with r in Å.
BondingU = 1202 ν |Z+ Z−| / r0 × (1 − 0.345/r0) kJ/mol, r0 in Å.
LatticeCFSE = (−0.4 nt + 0.6 ne) Δo. Crystal-field stabilisation.
Crystal fieldt = (rA + rX) / (√2 (rB + rX)). Perovskite packing.
Crystal chemistryU = − NA α k e² / r. Point-charge lattice sum.
LatticeU = −(NA α k |z+ z−| e² / r0)(1 − 1/n). Coulomb plus inverse-power repulsion.
LatticeU ∝ |Z+ Z−| / r. Bare ionic attraction of a pair.
LatticeΔo = 10 Dq. Spectroscopic octahedral splitting.
Crystal fieldμso = √(n(n+2)) BM. Unpaired-electron moment.
Magnetismne = nd + 2 nL − q for MLn^{q}. Closed-shell organometallic count.
Organometallicρ = r+ / r−. Packing of a cation in an anion hole.
Crystal chemistryCN jumps at the critical radius ratios. A hard-sphere snapshot.
Crystal chemistryZeff = Z − σ. Screening constant σ from Slater's rules.
Atomicφ = Z / r. Polarising power of a cation.
Bondingη = (I − A)/2. Absolute chemical hardness.
AcidityΔt = (4/9) Δo. Same ligands, tetrahedral is a weaker field.
Crystal fieldE_JT ≈ 2 δ for an elongated d⁹ octahedron. Distortion lowering.
Crystal fieldKsp = s² for AB(s) ⇌ A+ + B−. Molar solubility s = √Ksp.
Solubility[A+] = Ksp / [B−] for AB. Extra B− suppresses dissolved A+.
SolubilityKf = [ML] / ([M][L]). One-step formation snapshot.
CoordinationE ≈ −(χA − χB)² / (2(ηA + ηB)). Charge-transfer stabilisation.
Acidityox(X) = −q + 2 n for an oxoanion XOn^q (O as −2).
RedoxU = ΔHsub + IE + ½ D + EA + ΔHf (signs as written for MX).
LatticeBorn–Landé shortcut.
InorganicFirst-row ions.
InorganicCN prediction.
InorganicIonic lattice.
Inorganic