GLITSIN ASOSIDAGI SHIFF ASOSI Cu(II) VA Ni(II) KOMPLEKSLARINING IQ-SPEKTROSKOPIK TAHLILI
Keywords:
Cu(II) kompleksi, Ni(II) kompleksi, glitsin, Shiff asosi, IQ-spektroskopiya, koordinatsion birikmalar, azometin, karboksilat guruhi.Abstract
Mazkur tadqiqotda benzalatsetofenon va glitsin asosida sintez qilingan Shiff baza ligandlarining Cu(II) va Ni(II) komplekslari IQ-spektroskopiya usuli yordamida o‘rganildi. Erkin ligandlarda ν(C=N) azometin guruhi tebranishi 1635 cm⁻¹ da kuzatilgan bo‘lsa, kompleks hosil bo‘lgach ushbu signal 1608–1612 cm⁻¹ sohasiga siljishi koordinatsiyaning azometin azoti orqali amalga oshganligini ko‘rsatdi. Komplekslarda ν_as(COO⁻) va ν_s(COO⁻) tebranishlarining paydo bo‘lishi karboksilat guruhining xelatlovchi bidentat koordinatsiyasini tasdiqladi. Shuningdek, uzoq IQ-sohada ν(M–N) va ν(M–O) tebranishlarining kuzatilishi metall–ligand bog‘lari hosil bo‘lganligini ko‘rsatdi. Spektroskopik natijalar asosida Cu(II) va Ni(II) komplekslari tridentat koordinatsiyalangan monoyadroli komplekslar ekanligi aniqlandi.
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