The crystal and molecular structures of the fluorocymantrenes [(C₅H₄F)Mn(CO)₃] and [(C₅H_5−nF_n)Mn (CO)₂(PPh₃)] (n = 1–3) have been studied. The influence of the phosphine for carbonyl substitution on the bond parameters is larger than the influence of the increasing fluorine content. In most cases the Mn → P vector is in a transoid position relative to the fluorine substituents, and therefore the conformational parameters of the PPh₃ propeller are in these cases very similar. The crystal structures show many intermolecular C–H⋯O hydrogen bonds and only very few C–H⋯F hydrogen bonds.

Graphic Abstract

The influence of the phosphine for carbonyl substitution on the bond parameters of the fluorocymantrenes [(C₅H₄F)Mn(CO)₃] and [(C₅H_5−nF_n)Mn (CO)₂(PPh₃)] (n = 1–3) is larger than the influence of the increasing fluorine content.

中文翻译：

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一些氟草萜的分子和晶体结构

氟氰菊酯的晶体和分子结构 [(C ₅ H ₄ F)Mn(CO) ₃ ] 和 [(C ₅ H _5−n F _n )Mn (CO) ₂ (PPh ₃ )] (n = 1–3 ) 进行了研究。羰基取代膦对键参数的影响大于氟含量增加的影响。在大多数情况下，Mn → P 向量相对于氟取代基处于 transoid 位置，因此 PPh ₃螺旋桨的构象参数在这些情况下非常相似。晶体结构显示了许多分子间的 C–H⋯O 氢键和很少的 C–H⋯F 氢键。

图形摘要

羰基取代膦对氟氰菊酯[(C ₅ H ₄ F)Mn(CO) ₃ ]和[(C ₅ H _5−n F _n )Mn (CO) ₂ (PPh ₃ )键参数的影响] (n = 1–3) 大于氟含量增加的影响。