Aqueous solutions of sodium tribromoacetate (NaCBr₃CO₂) and its corresponding acid (CBr₃COOH) have been studied using Raman and infrared spectroscopy. The spectra of the species in solution were assigned according to symmetry C_s. Characteristic bands of CBr₃CO₂⁻(aq) and the tribromoacetic acid, CBr₃COOH(aq), are discussed. For the hydrated anion, the CO₂ group, the symmetric CO₂ stretching mode at 1332 cm⁻¹ and the asymmetric stretching mode at 1651 cm⁻¹ are characteristic while the CO mode at 1730 cm⁻¹ is characteristic for the spectra of the acid. The stretching mode, νC–C at 912 cm⁻¹ for CBr₃CO₂⁻(aq) is 10 cm⁻¹ lower in the anion compared with that of the acid. These characteristic modes are compared to those in acetate, CH₃CO₂⁻(aq). Coupling of the modes are fairly extensive and therefore DFT calculations have been carried out in order to compare the measured spectra with the calculated ones. The geometrical parameters such as bond length and bond angles of the tribromoacetate, and tribromoacetic acid have been obtained and may be compared with the ones published for other acetates and their conjugated acids.

CBr₃COOH(aq) is a moderately strong acid and the pK_a value derived from quantitative Raman measurements is equal to −0.23 at 23 °C. The deuterated acid CBr₃COOD in heavy water has been measured as well and the assignments were given.

使用拉曼光谱和红外光谱研究了三溴乙酸钠（NaCBr ₃ CO ₂）及其相应的酸（CBr ₃ COOH）的水溶液。根据对称C _s分配溶液中的物种的光谱。CBR的特征谱带₃ CO ₂ ^- （水溶液）和三溴乙酸，CBR ₃ COOH（水溶液），进行了讨论。对于水合阴离子，特征在于CO ₂基团，在1332 cm ^-1处的对称CO ₂拉伸模式和在1651 cm ^-1处的不对称拉伸模式，而在1730 cm ^-1时的CO模式是酸光谱的特征。拉伸模式，ν C-C在912厘米^-1对于CBR ₃ CO ₂ ^- （水溶液）为10cm ^-1的阴离子低与酸的比较。这些特征模式相比，那些在乙酸，CH ₃ CO ₂ ^- （水溶液）。模式的耦合相当广泛，因此已经进行了DFT计算，以便将测得的光谱与计算出的光谱进行比较。已获得了三溴乙酸盐和三溴乙酸的几何参数，例如键长和键角，可以与其他乙酸盐及其共轭酸的几何参数进行比较。

CBr ₃ COOH（aq）是中等强度的酸，在23°C下从定量拉曼测量得出的p K _a值等于-0.23。还测量了重水中的氘代酸CBr ₃ COOD并给出了赋值。