ANILINE AND M-DINITROBENZENE IN NAY - CHARGE-TRANSFER COMPLEXES ABSORBED IN A ZEOLITIC HOST

The sites of aniline and m-dinitrobenzene simultaneously absorbed by N aY were studied by neutron powder diffraction. Selective deuteration o f the molecules allows concise identification of the guests. These are stacked alternating along a threefold axis of spacegroup <Fd(3)over b ar m>. UV diffuse reflectance spectrometry gives evidence of a charge transfer interaction between aniline and dinitrobenzene. The investiga tion of a sample containing two molecules of aniline per supercage yie lded identical adsorption positions to those obtained in combination w ith dinitrobenzene.