Table 1.

Proton chemical shift values (given in parts per million) for [{Ru(apy)(tpy)}₂{μ-H₂N(CH₂)₆NH₂}](ClO₄)₄ (1f), where apy is 2,2′-azobispyridine and tpy is 2,2′:6′,2″-terpyridine, recorded in dimethyl sulfoxide-d ₆ at 298 K

6A	3A	3T 3T′	4A	5A 4T′	4T	6A′	4A′	5T	5A′ 6T	3A′	NH 2	(CH 2)a	(CH 2)b	(CH 2)c
9.34	9.00	8.62	8.52	8.30	8.14	7.78	7.73	7.46	7.30	6.98	4.92	1.64	1.10	0.66

The proton labeling as given in Fig. 2 has been used. The assignment of the proton signals was based on 2D NMR spectra (data not shown, assignments based on [36])