Co³⁺
NO₂⁻
ONO⁻
linkage
ambidentat
C₄ᵥ
Jørgensen 1894
🧪Formula
[Co(NH₃)₅NO₂]Cl₂
⚖️M massa
278.44 g/mol
💎Geometriya
Oktaedrik (C₄ᵥ)
🎨Kompleks rangi
Sariq / Qizil
🔗Ligand turi
Ambidentat
🔗Linkage izomerni tanlang:(ambidentat NO₂⁻ ligandi)
📋
Asosiy ma'lumotlar — Nitrokobalt (sariq)
CAS (nitro)
14878-56-9
CAS (nitrito)
14970-14-0
Zichlik
~1.80 g/cm³
Sistema
Monoklinik
Eruvchanlik (H₂O)
Yaxshi eriydi
Eruvchanlik (EtOH)
Kam eriydi
Barqarorlik
Termodinamik barqaror
Rangi
Sariq
💎 Ichki va tashqi sfera
🔒 Ichki sfera [Co(NH₃)₅NO₂]²⁺
- • Co³⁺ — markaziy ion (d⁶)
- • 5 × NH₃ — ammiak ligandlari
- • 1 × NO₂⁻ — nitrit ioni (ambidentat!)
- • Zaryad: +3 + 0 + (−1) = +2
- • Bog'lanish: Co−N−O₂ (N orqali)
🔓 Tashqi sfera 2Cl⁻
- • 2 × Cl⁻ — counter-ionlar
- • Ion bog'lar bilan bog'langan
- • Suvda darhol dissotsilanadi
- • AgNO₃ bilan darhol cho'kadi
- • 2 mol AgCl cho'kma
- • 3 ion: [Co(NH₃)₅NO₂]²⁺ + 2Cl⁻
✅ Asosiy xulosalar
🔗 Linkage izomeriya: NO₂⁻ N yoki O orqali bog'lanishi mumkin
🎨 Ikki xil rang: nitro = sariq, nitrito = qizil
⚛️ d⁶ quyi spinli: KMBE = −2.4Δₒ, diamagnit
⚖️ Termodinamik: nitro barqaror, nitrito metastabil
🔄 Izomerlanish: UV yorug'lik yoki issiqlik bilan nitrito → nitro
📜 Jørgensen 1894: Birinchi linkage izomer kashfiyoti