• investigation of 3,5-dichlorosalicylate-copper(ii)-(3-pyridylmethanol or n,n′-diethylnicotinamide) complex systems by epr spectroscopy

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 957
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     copper(ii) complex systems, containing 3,5-dichlorosalicylic acid (3,5-cl2salh) and different copper salts (cu(ac)2 or cuso4), with varying concentrations of 3-pyridylmethanol (ronicol, ron) or n,n′-diethylnicotinamide (denia) as ligands, were prepared. the effects of cu(ii) salts containing anions of different basicity and two different n-donor ligands with varying ligand-to-metal ratio (x) on the formation of the resultant complexes in the water/methanol solutions were studied by epr spectroscopy at low temperature of 98 k. when ligand concentration was increased, the resolution and signal intensity of the 14n perpendicular super-hyperfine splitting patterns increased (for ron more progressively), becoming saturated at higher ligand concentrations. in comparing the ronicoland denia-containing systems, both g-factors (g g ) are systematically higher and the parallel hyperfine splitting (a ) systematically lower in denia-containing systems for both cu(ii) salts.

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