Full assignment of the 1H NMR spectrum of heteroleptic polyazaaromatic Ru(II) complexes based on long-range interligand NOEs.

Chemical equivalence in symmetrical polyazaaromatic ligands is not necessarily retained in the corresponding heteroleptic ruthenium(II) complexes, and the assignment of the H-1 NMR spectrum of these octahedral metallic compounds is therefore not straightforward. This work shows that full assignment can be achieved on the basis of long-range interligand NOE measurements. Copyright (C) 2013 John Wiley & Sons, Ltd.