Ligation of zeolite exchanged transition ions with bidentate aza ligands

2 LIGATION OF ZEOLITE EXCHANGED TRANSITION IONS WITH BIDENTATE AZA LIGANDS 

ESR parameters of the complex show its distortion upon entrapment, depending on the geometry of the intrazeolite space. In ZSM-5, the decreased effective spin-orbit coupling constants and molecular orbital coefficients for in-plane n binding are indicative of increased covalency between Cu and en, due to distortion from planarity upon encapsulation. This distortion from planar geometry is confirmed by a red shift in the energy-level diagrams at least for the zeolites with the smaller pores (ZSM-5 Beta). An intensity enhancement of the d-d bands occurs in parallel. 

Men(dmgH)2 complexes were entrapped in CuY, NiY, and CoY zeolites upon addition of dimethylglyoxime (dmgH) to the zeolite via the flexible ligand 

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Ligation of zeolite exchanged transition ions with bidentate aza ligands 224... 

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