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13C and 99Ru-NMR chendcal shifts are reported for the ruthenium(II) tris complexes of5-substitUted 1,10-phenanthrolines. It has been found that both of them are affected by the substituents on the phenanthrolines in a direction consistent with that expected from the electron withdrawing ability of the substituent.
13C and 99Ru-NMR chendcal shifts are reported for the ruthenium (II) tris complexes of 5-substitUted 1,10-phenanthrolines. It has been found that both of them are affected by the substituents on the phenanthrolines in a direction consistent with that expected from the electron withdrawing ability of the substituent.