The reaction of Ag⁺ with Ru₃(CO)₁₂ in a CO atmosphere under concommittant irradiation with UV-light yields a salt of the metal-only Lewis-pair [Ag{Ru(CO)₅}₂]⁺. Switching the silver cation for a more process-selective deelectronator yields a salt of the homoleptic transition metal carbonyl cation [Ru₂(CO)₁₀]²⁺, which fills the gap between the known cations [Ru(CO)₆]²⁺ and [Ru₃(CO)₁₄]²⁺. The amount of π-backdonation in this series was studied by a combination of vibrational spectroscopy and computed relaxed force constants.

中文翻译：

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二金属癸酰基 [Ru2（CO）10]2+ 和仅金属路易斯对 [Ag{Ru（CO）5}2]+ 的分离和表征


Ag⁺ 与 Ru₃（CO）₁₂ 在 CO 气氛中用紫外线连续照射反应，产生仅金属的路易斯对 [Ag{Ru（CO）₅}₂]⁺ 的盐。将银阳离子换成更具工艺选择性的脱静电剂，可产生同源过渡金属羰基阳离子 [Ru₂（CO）₁₀]²⁺ 的盐，它填补了已知阳离子 [Ru（CO）₆^{] 2+} 和 [Ru₃（CO）₁₄]²⁺ 之间的空白.该系列中 π 回捐的量是通过振动光谱和计算的松弛力常数的组合来研究的。