ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Cross polarization/magic angle spinning 13C NMR has been applied to the investigation of some solid organometallic compounds of the general formulae TiCl4 · n RCOOR′, MgCl2 · n RCOOR′ (RCOOR′ = p-CH3—C6H4COOCH3 and C6H5COOC2H5, n = 1; 2; and 0,15). Compounds with n = 1 and 2 show narrow resonance lines indicative of crystalline regular structures while for MgCl2 · 0,15 RCOOR′ a disordered structure is found with the organic ligands strongly bonded to the surface of MgCl2 crystallites. For n = 2 splitting into a doublet is found for some resonances due to the spatial non-equivalence of the two ligands induced by crystalline packing. A shift has been found for some resonances in going from Mg to Ti complexes which reflects the different Lewis acidity of the two metal atoms.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1988.021890714
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