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. Author manuscript; available in PMC: 2021 Mar 15.
Published in final edited form as: Acc Chem Res. 2020 Apr 2;53(4):906–919. doi: 10.1021/acs.accounts.0c00032

Table 3.

Comparison of Bond Parameters for β-Agostic (α-Diimine)Ni and Pd Complexes

40 (Ni) 41 (Pd)
M–C31 (Å) 1.901(4) 2.030(4)
M–C32 (Å) 2.081(5) 2.264(4)
C31–C32 (Å) 1.468(7) 1.469(6)
M–C31–C32 (deg) 75.0(3) 78.9(2)
M–H34A (Å) 1.67(5) 1.60(4)a
C34–H34A (Å) 1.001(10) 1.20(5)a
a

Bond lengths determined by neutron diffraction for (iPr,para‑MeOα-diimine)Pd.