以 [Ru2(μ- dppm)2(μ-OAc)(CO)4][BF4] (8)與PhCCH和TolCCH兩種炔類在室溫下反應，分別可以得到含有炔類之雙釕金屬錯化物 [Ru2(μ-dppm)2(μ-η1,η2-C2Ph)(CO)4][BF4] (1)與 [Ru2(μ- dppm)2(μ-η1,η2-C2Tol)(CO)4][BF4] (2)；將1和2與TMNO反應，會脫去一個與炔類配位位置反式的CO配位基，得到錯化物 [Ru2(μ- dppm)2(μ- η1,η2-C2 Ph)(CO)3(MeCN)][BF4] (3) 和 [Ru2(μ- dppm)2(μ-η1,η2 -C2 Ph)(CO)3 (MeCN)] [BF4] (4)。錯化物1和2具有fluxional的性質。錯化物1 fluxional的活化能ΔG‡ =15.7 K cal/mol。以錯化物8與過量PhCCH在MeOH中迴流，或以錯化物3與過量PhCCH在CH2Cl2中在室溫下反應可以得到碳碳原子間耦合的錯化物 [Ru2(μ- dppm)2(μ- η1,η2-C2 Ph)(CO)(μ-η2,η2 -PhHCCCCPh)] (5)。以錯化物8與過量TolCCH在MeOH中迴流可以得到另外一個不同結構的碳碳原子間耦合的錯化物 [Ru2(CO)2(μ-η1,η2-Tol－C≡C)(μ,η2,η2- Tol－CH－CH－C═C－Tol)(μ- dppm)2][BF4] (7)。而錯化物5與7具有不同的耦合形式。錯化物1、3、5、7的構造已經經由X-ray單晶繞射數據證實，其Ru－Ru鍵長分別為2.9209(6)、2.9273(4)、2.9282(4)、2.9849(5) Å。

[Ru2(μ- dppm)2(μ-OAc)(CO)4][BF4] (8) reacted with two kinds of alkynes at room temperature to afford diruthenium alkyne complexes [Ru2(μ- dppm)2(μ-η1,η2-C2Ph)(CO)4][BF4] (1) and [Ru2(μ- dppm)2 (μ-η1,η2-C2Tol)(CO)4][BF4] (2). Complex 1 and 2 reacted with TMNO to produce [Ru2 (μ- dppm)2(μ-η1,η2-C2 Ph)(CO)3(MeCN)][BF4] (3) and [Ru2(μ- dppm)2(μ-η1,η2-C2 Ph)(CO)3 (MeCN)] [BF4] (4). Complex 1 and 2 are fluxional in solution at room temperature. The activation energy of complex 1 is ΔG‡ = 15.7 K cal/mol. Complex 8 reacted with excess PhCCH in MeOH，or complex 3 reacted with excess PhCCH in CH2Cl2 to produce a C－C coupling complex [Ru2(μ- dppm)2(μ- η1,η2-C2 Ph)(CO)(μ-η2,η2 -PhHCCCCPh)] (5)。Complex 8 reacted with TolCCH in MeOH to produce another C－C coupling complex [Ru2(CO)2(μ-η1,η2-Tol－C≡C)(μ,η2,η2- Tol－CH－CH－C═C－Tol)(μ- dppm)2][BF4] (7). Complex 5 and 7 had different coupled structure. The single-crystal structures of complexes 1, 3, 5 and 7 have been determined with Ru－Ru bond distances of 2.9209(6), 2.9273(4), 2.9282(4) and 2.9849(5) Å, respectively.

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