| Popis: |
The orientations of organometallic sandwich complexes Co(η-C5H5)2, Cr(η-C5H5)2, Co(η-C5H4CH3)2, Mo(η-C6H6)2, W(η-C7H7)(η-C5H4CH 3), and Ti(η-C8H8)(η-C5H5) intercalated in the lamellar metal dichalcogenide lattices ZrS2 and SnX2 (X = S, Se) have been examined using 1-dimensional refinements of their neutron and X-ray diffraction spectra. The results strongly suggest that these organometallic sandwich complexes all adopt a preferred orientation in which their metal-to-ring centroid axes lie parallel to the host layer planes. The orientation of Co(η-C5D5)2 intercalated in ZrS2 and SnSe2 has been confirmed by solid state 2H NMR spectroscopy using oriented single crystals of ZrS2{Co(η-C5D5)2}0.25 and SnSe2{Co(η-C5D5)2} 0.30. © 1994 American Chemical Society. |
