N₂- and O₂-broadening coefficients were measured at room temperature for 2914 ro-vibrational lines of methyl chloride in the region from 920 to 1140 cm⁻¹ corresponding to the ν₆ band, using a high-resolution Fourier transform spectrometer and a mono-spectrum non-linear least squares fitting of Voigt profiles. The spectra were recorded at the AILES beamline of the SOLEIL Synchrotron facility at various mixtures of CH₃Cl with N₂ or O₂ gas. Broadening coefficients were retrieved for the two isotopes of CH₃Cl from which we derived the air-broadenings. The rotational dependences of these coefficients were analyzed and modeled first using an empirical model, which reproduces the measurements within of about 5%. Pressure-induced shifts are also measured for about 375 and 418 transitions for O₂- and N₂-perturbers respectively with no obvious rotational dependence. The average absolute accuracies of the measurements are estimated to be about 7 and 17% for broadening and shift coefficients respectively. Comparisons are performed with previous measurements and next with semi-classical predictions achieved in this work. The entire set of results is given as Supplementary data Table for a use in spectroscopic databases and atmospheric detection.

Ñ ₂ -和O ₂ -broadening系数在室温下测量的为在从920的区域氯甲烷2914 RO-振动线1140厘米^-1对应于ν ₆频带，采用一个高分辨率的傅立叶变换光谱仪和一个Voigt轮廓的单谱非线性最小二乘拟合。光谱是在SOLEIL Synchrotron设备的AILES光束线上记录的，这些光谱是CH ₃ Cl与N ₂或O ₂气体的各种混合物。检索CH ₃的两个同位素的展宽系数从中我们得出空气膨胀的Cl。首先使用经验模型对这些系数的旋转相关性进行分析和建模，该模型可将测量值重现约5％。压力--还针对O _2-和N _2-扰动器分别测量了约375和418个跃迁的感应位移，没有明显的旋转依赖性。对于加宽系数和位移系数，测量的平均绝对准确度估计分别约为7％和17％。与之前的测量结果进行比较，然后与本工作中实现的半经典预测进行比较。整个结果集作为补充数据表提供，供光谱数据库和大气检测使用。