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. Author manuscript; available in PMC: 2014 Jul 2.
Published in final edited form as: Polyhedron. 2013 Jul 2;57:64–69. doi: 10.1016/j.poly.2013.04.022

Table 1.

1H-NMR chemical shift of metal-free and metallo-Nc(OBu)8

H Rh Ir Ni Pd Pt
— Cl-py Cl-py — — —
Nc
1,4 8.94 m 8 8.94 m 8 8.91 m 8 8.90 m 8 8.95 m 8 8.93 m 8
2,3 7.86 m 8 7.86 m 8 7.84 m 8 7.84 m 8 7.87 m 8 7.87 m 8
OC4H9
C1 5.13 t 16 5.26 t 16 5.23 t 16 5.01 t 16 5.19 t 16 5.18 t 16
C2 2.21 m 16 2.25 m 16 2.23 m 16 2.18 m 16 2.24 m 16 2.24 m 16
C3 1.64 m 16 1.69 m 16 1.68 m 16 1.63 m 16 1.66 m 16 1.66 m 16
C4 1.01 t 24 1.06 t 24 1.04 t 24 1.01 t 24 1.03 t 24 1.03 t 24
py
2,6 3.19 d 2 3.17 d 2
3,5 5.72 t 2 5.68 t 2
4 6.51 t 1 6.50 t 1