THE CYCLE DESTRUCTION DURING COMPLEX FORMATION OF 4-SALICYLIDENEAMINO-3-HYDRAZINO-5-MERCAPTO-1,2,4-TRIAZOLE WITH NI (II) IONS Article Fatullayeva P.A., Medjidov A.A., Mamedov I.M., Dorovatovskiy P.V., Zubavichus J.V., Khrustalev V.N., Ismayilov R.H. Journal of the Chemical Society of Pakistan. Chemical Society of Pakistan. Vol. 42. 2020. P. 762-766