STUDIES ON SCHIFF BASE COMPLEXES Ⅶ.COORDINATION EFFECT OF SCHIFF BASE SUPPORTED ON SILICA

Chinese Journal of Applied Chemistry ›› 1990, Vol. 0 ›› Issue (4): 62-64.

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STUDIES ON SCHIFF BASE COMPLEXES Ⅶ.COORDINATION EFFECT OF SCHIFF BASE SUPPORTED ON SILICA

Wang Xin, Lu Lude, Yang Xujie, Chen Zhijin, Song Qize

Modern Chemistry Laboratory, East China Institute of Technology, Nanjing 210014

Received:1989-10-11 Revised:1990-01-10 Published:1990-08-10 Online:1990-08-10

Abstract

Abstract: Several Schiff base supported silicas have been prepared and their adsorption capacitiesfor metal ions were measured. compared to the Schiff-base-free silica the adsorption capacityof the functionalized ones were greatly improved in the order:Cu²⁺>Co²⁺>Cd²⁺>Pb²⁺.The Nls photoelectron spectrum of Cu²⁺ complex with surface Schiff base was quitedifferent from that of Cu²⁺ ion-free surface Schiff base. Owing to the more extensiveback-bonding in the metal-coordinated - N = C - group, the Nls binding energy is far lowerfor the coordinated group than for the free one.

Key words: Silica, Schiff base, adsorption capacity

Wang Xin, Lu Lude, Yang Xujie, Chen Zhijin, Song Qize. STUDIES ON SCHIFF BASE COMPLEXES Ⅶ.COORDINATION EFFECT OF SCHIFF BASE SUPPORTED ON SILICA[J]. Chinese Journal of Applied Chemistry, 1990, 0(4): 62-64.

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STUDIES ON SCHIFF BASE COMPLEXES Ⅶ.COORDINATION EFFECT OF SCHIFF BASE SUPPORTED ON SILICA

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