SALITSILAMIDNING Ni(II)NITRAT TUZI BILAN KOMPLEKS BIRIKMASI SINTEZI VA KRISTALL TUZILISHI
Referat
Ushbu maqolada [Ni(Sal)2(NO3)2(H2O)2] (Sal-salitsilamid) tarkibli kompleks birikmaning sintezi va uning kristall tuzilishi muhokama qilingan. Sintez qilingan kompleks birikma tarkibi element analizi va tuzilishi rentgen strukturaviy analiz usuli yordamida o‘rganildi. Nikel tanlangan ligand salitsilamid bilan karbonil guruhidagi kislorod atomi orqali koordinatsiyaga uchrashi, shuningdek koordinatsiyalanishda gidroksil guruhi qatnashmayotganligi rentgen tuzilish tahlili (RTT) usuli yordamida ko‘rsatib berildi. Sintezlangan koordinatsion birikma monokristali o‘stirilib, unga tegishli parametrlar ya’ni bog‘ uzunligi, burchaklar kattaligi va kompleks birikma molekulasidagi atomlar orasida kuzatilayotgan vodorod bog‘lar aniqlandi hamda struktura tahlil qilindi. Sintezlangan kompleks birikmada nikelning koordinatsion soni 6 ga teng bo‘lib, uning gibridlanishi sp3d2 ekanligi aniqlandi. Gidroksibenzamid izomerlari ichidan (2-gidroksibenzamid(L1), 3-gidroksibenzamid(L2), 4-gidroksibenzamid(L3)) ichidan ayrim fizik-kimyoviy xossalarini o‘rganish orqali salitsilamidni tanlab, uni bir nechta oraliq metallar bilan kompleks birikmalari sintezi amalga oshirildi. Natijada, salitsilamidning 3d metallari bilan koordinatsion birikmalarini sintez qilishning yangi usuli yaratildi va keyingi tajribalarda qo‘llash bo‘yicha tavsiyalar berildi.
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