The high-resolution absorption spectrum of acetylene has been recorded at room temperature by high sensitivity cavity ring down spectroscopy (CRDS) in the 6627–7065 cm^–1 region. The studied spectral range corresponds to a spectral interval of very weak absorption (an acetylene transparency window). The positions and intensities of more than 6500 lines are determined in the considered interval where previous intensity information was mostly missing. On the basis of previous studies and on effective Hamiltonian predictions, 3062 ¹²C₂H₂, 462 ¹²C¹³CH₂ and 104 ¹²C₂HD absorption lines belonging to a total of 123 vibrational bands are assigned. For comparison, the HITRAN2016 database provides line parameters of only ten ¹²C₂H₂ bands in the same region. Spectroscopic parameters of 113 upper vibrational levels were derived from standard band-by-band fits of the line positions (typical rms values of the (obs.-calc.) deviations are better than 0.003 cm^–1). Many bands are found to be affected by perturbations. The vibrational transition dipole moment squared and Herman-Wallis coefficients of 47 bands were derived from a fit of the measured intensity values. In order to generate a recommended line list in the region, the derived spectroscopic parameters and Herman-Wallis coefficients were used to compute the line parameters for these 47 bands while experimental position and intensity values were kept for the other bands. Overall, the obtained recommended list including a total of 5260 transitions will help to fill a spectral gap around 1.47 µm where very scarce spectroscopic information is provided in the current spectroscopic databases. When compared to the HITRAN list in the region, some important deviations concerning both line positions and line intensities are evidenced as a result of inaccurate high J extrapolations.

乙炔的高分辨率吸收光谱已在室温下通过高灵敏度腔衰荡光谱（CRDS）记录在6627–7065 cm ^–1区域中。研究的光谱范围对应于非常弱吸收的光谱间隔（乙炔透明窗）。在考虑的间隔中确定了超过6500条线的位置和强度，而先前的强度信息大多丢失了。前人的研究的和有效的哈密顿预测的基础，3062 ¹² c ^ ₂ ħ ₂，462 ¹² Ç ¹³ CH ₂和104 ¹² Ç ₂分配了属于总共123个振动带的HD吸收线。为了进行比较，HITRAN2016数据库在同一区域仅提供了十个¹² C ₂ H ₂频段的线路参数。113条较高振动水平的光谱参数是通过线位置的标准逐带拟合得出的（（实测值）偏差的典型均方根值优于0.003 cm ^–1））。发现许多乐队都受到摄动的影响。振动跃迁偶极矩平方和47条带的Herman-Wallis系数是从测得的强度值的拟合得出的。为了在该区域中生成推荐的线列表，导出的光谱参数和Herman-Wallis系数用于计算这47个波段的线参数，同时保留其他波段的实验位置和强度值。总体而言，所获得的推荐列表（包括总共5260个跃迁）将有助于填补1.47 µm左右的光谱缺口，其中当前光谱数据库中提供的光谱信息非常稀缺。与该地区的HITRAN列表进行比较时，J外推法。