The infinite dilution binary diffusion coefficients (D₁₂) of acetylferrocene and 1,1′-diacetylferrocene were measured in supercritical carbon dioxide (scCO₂) at (313, 353, 363 and 373) K and at pressures from (11 to 26) MPa using the chromatographic impulse response method, and in atmospheric-pressure liquid organic solvents such as acetone at 303 K, methanol at (313, 323, and 333) K and ethanol at (323 and 333) K using the Taylor dispersion method. The D₁₂ values for both solutes were approximately consistent under all of the investigated measurement conditions and were well represented by the hydrodynamic equation, in which D₁₂/T is expressed as a function of solvent viscosity, over almost the entire range of investigated viscosities ranging from the viscosities of liquid organic solvents to that of scCO₂. At 313 K and 11 MPa, the D₁₂ values for both the organometallic solutes deviated from the correlation of the D₁₂ values with the solute molecular mass for nonmetallic organic compounds reported in the literature.

乙酰二茂铁和 1,1'-二乙酰二茂铁的无限稀释二元扩散系数 ( D ₁₂ ) 在超临界二氧化碳 (scCO ₂ ) 中在 ( 313、353、363和 373) K 和 (11 到 26) MPa 的压力下测量使用色谱脉冲响应方法，并在常压液体有机溶剂中，例如 303 K 下的丙酮、（313、323 和 333）K 下的甲醇和（323 和 333）K 下的乙醇，使用泰勒分散法。两种溶质的D ₁₂值在所有研究的测量条件下都大致一致，并且由流体动力学方程很好地表示，其中D ₁₂ / T表示为溶剂粘度的函数，在几乎所有研究的粘度范围内，从液体有机溶剂的粘度到 scCO ₂的粘度。在 313 K 和 11 MPa 下，两种有机金属溶质的D ₁₂值偏离了文献中报道的D ₁₂值与非金属有机化合物的溶质分子质量的相关性。