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1H spin-lattice relaxation rates and nuclear Overhauser effect difference spectra have been measured (at 400 MHz) for six dimers derived from methyl-substituted 7-hydroxyindenes. Used in combination, these measurements identify the relaxation pathways available to all of the protons in the molecules. Analysis of these pathways has permitted assignment of all chemical shifts, and identification of the relative stereochemistry at all chiral centres.

Crystal and MolecularStructures of y-Oxalato-di[bisethylenediaminenickel ( II)] Din it rate, p-Oxalato-bis[ d i -( 2-aminoet hyl )aminecopper( II)] Diperchlorate, and p-Oxalato-bis[di-(3-aminopropyl)aminezinc(11)] Diperchlorate

Treatment of a 7-hydroxyindan-1 -one (2) with methyl magnesium iodide gives the corresponding tertiary alcohol and two pentacyclic dimers, (9a) and (9b).

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