(η5-Dp)Ru(PPh3)2H (Dp = C8H9−, 1,2-dihydropentalenyl) was synthesized in 90% yield by reaction of (η5-Dp)Ru(PPh3)2Cl with sodium formate. (η5-Dp)Ru(PPh3)2H was characterized by 1H and 31P NMR spectroscopy and IR spectroscopy. The Ru–H appears in the 1H NMR spectrum upfield at −11.6 ppm, indicative of a metal hydride. In the IR spectrum, the νRu–H was observed at 1920 cm−1. The solid-state structure of (η5-Dp)Ru(PPh3)2H (1) was determined by X-ray crystallography. Compound 1 has similar structural parameters to (η5-Cp)Ru(PPh3)2H and (η5-Ind)Ru(PPh3)2H.

中文翻译：

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(η5-Dp)Ru(PPh3)2H (Dp = C8H9−, 1,2-dihydropentalenyl) 的合成和结构表征

(η5-Dp)Ru(PPh3)2H（Dp = C8H9-，1,2-二氢戊烯基）通过 (η5-Dp)Ru(PPh3)2Cl 与甲酸钠反应以 90% 的产率合成。(η5-Dp)Ru(PPh3)2H 通过 1H 和 31P NMR 光谱和 IR 光谱表征。Ru-H 出现在 -11.6 ppm 的 1H NMR 光谱高场，表明金属氢化物。在 IR 光谱中，在 1920 cm-1 处观察到 νRu–H。(η5-Dp)Ru(PPh3)2H (1) 的固态结构由 X 射线晶体学确定。化合物1具有与(η5-Cp)Ru(PPh3)2H和(η5-Ind)Ru(PPh3)2H相似的结构参数。