Second Virial Coefficients and the Force Constants, ε0 and r0, of Six Halogen‐Substituted Methanes

摘要: The second virial coefficients of six halogen‐substituted methanes were determined in the temperature range 40°–130°C, using a modified gas balance conjunction with reference gas, carbon tetrafluoride. It was found that Lennard‐Jones 12–6 potential describes interaction CClF3, CCl2F2, and CCl3F adequately, while Stockmayer more polar CHF3, CHClF2, CHCl2F. force constants e0 r0 calculated for these methanes. also values nine methanes, including compounds investigated here, may be expressed as linear combination CH4, CCl4, CF4. This relationship to hold within 5.5% seven out compounds.