Reaction of
[Ru
2
(CO)
6
(µ-PPh
2
)(µ-η
1
,η
2
α,β
-CCâC
CR)] (R = Bu
t
1a, Ph 1b) with the labile complexes
[Pt(PPh
3
)
2
(η-C
2
H
4
],
[Pt(dppb)(η-C
2
H
4
)] and [Ni(cod)
2
] or
[Ni(CO)
4
] leads to the heteronuclear derivatives
[Ru
2
Pt(CO)
7
(PPh
3
)(µ
3
-η
1
,η
1
,η
1
-CCâC
CR)(µ-PPh
2
)] 2a,b,
[Ru
2
Pt(CO)
6
(dppb)(µ
3
-η
1
,η
1
,η
1
-CCâCCBu
t
)(µ-PPh
2
)] 2c and
[Ru
4
Ni(CO)
12
(µ-PPh
2
)
2
(µ
4
-η
1
,η
1
,η
2
,η
4
-Bu
t
CCC
4
CC-Bu
t
)] 3 resulting from addition of a PtL
2
fragment and
Ni-assisted stoichiometric coupling of two molecules of 1a respectively;
the X-ray crystal structures of 2a and 3 are described.
[Ru₂(CO)₆(µ-PPh₂)(µ-η₁,η₂α,β-CC–CR)] (R = Buₜ 1a, Ph 1b) 与不稳定配合物 [Pt(PPh₃)₂(η-C₂H₄)], [Pt(dppb)(η-C₂H₄)] 和 [Ni(cod)₂] 或 [Ni(CO)₄] 反应,导致异核衍
生物 [Ru₂Pt(CO)₇(PPh₃)(µ₃-η₁,η₁,η₁-CC–CR)(µ-PPh₂)] 2a,b, [Ru₂Pt(CO)₆(dppb)(µ₃-η₁,η₁,η₁-CC–CCBuₜ)(µ-PPh₂)] 2c 和 [Ru₄Ni(CO)₁₂(µ-PPh₂)₂(µ₄-η₁,η₁,η₂,η₄-Buₜ CCC₄CC-Buₜ)] 3,分别是通过添加 PtL₂ 片段和 Ni 辅助的计量偶联两个 1a 分子而得到的;描述了 2a 和 3 的 X 射线晶体结构。