Table 1
The different d
10
complexes of L1
adopt different overall geometries with TM!B retrodative bond interactions of different strengths
(THF
¼ tetrahydrofuran,
ΣB
α ¼ sum of angles around boron) [57–61]
Ni–B: 2.124(2) Å
Cu–B: 2.396(5) Å
Pd–B: 2.194(3) Å
Ag–B: 2.742(3) Å
Au–B: 2.309(8) Å
Ni–C
ipso : 2.175(2) Å
Cu–C
ipso : 2.364(3) Å
Pd–C
ipso : 2.463(3) Å
Ag–C
ipso : 2.939(3) Å
Au–C
ipso : 3.099(8) Å
ΣB
α : 352
ΣB
α : 356
ΣB
α : 346
ΣB
α : 357
ΣB
α : 341
P
1
¼ PPh
2
P
1
¼ PPh
2
P
1
¼ PPh
2
P
2
¼ PiPr
2
P
2
¼ PiPr
2
30
M. R. Tiddens and M.-E. Moret