The J= 1 â†� 0 and J= 2 â†� 1 microwave transitions of eight isotopomers of CF3CCH and six isotopomers of CF3CN have been investigated under high resolution using a pulsed-nozzle Fourier-transform spectrometer. High-precision isotopic measurements including the previously unobserved species 13CF3CCH have enabled a complete calculation of the zero-point average structure of CF3CCH: r(CC)= 1.201 (1)Å; r(C—C)= 1.474 (5)Å; r(C—H)= 1.051 (2)Å; ∠ FCF = 108.3 (2)°; r(C—F)= 1.337 (2)Å. For CF3CCD deuterium quadrupole hyperfine structure was resolved and measured at the J= 1 â†� 0 transition, giving eQq(D)= 201.9 (5.2) kHz.The zero-point average structure of CF3CN has also been calculated from the high-resolution isotopic data after the necessary vibrational corrections: r(CN)= 1.154 (1)Å; r(C—C)= 1.492 (5)Å; ∠FCF = 109.2 (2)°; r(C—F)= 1.328 (2)Å. Measurements at the J= 1 â†� 0 transition give an improved value for the nitrogen quadrupole coupling constant, eQq(14N)=–4.666 (4) MHz, in CF3CN.
                                    利用脉冲喷嘴傅立叶变换光谱仪对八种 CF3CCH 同位素和六种 CF3CN 同位素的 J= 1 â†� 0 和 J= 2 â†� 1 微波跃迁进行了高分辨率研究。通过高精度同位素测量,包括以前未观察到的 13CF3CCH 物种,可以完整计算出 CF3CCH 的零点平均结构:r(CC)= 1.201 (1)Å; r(C-C)= 1.474 (5)Å; r(C-H)= 1.051 (2)Å; ∠ FCF = 108.3 (2)°; r(C-F)= 1.337 (2)Å.对 CF3CCD 的
氘四极超频结构进行了解析,并在 J= 1 â†� 0 转变处进行了测量,得出 eQq(D)= 201.9 (5.2) kHz。经过必要的振动修正后,我们还根据高分辨率同位素数据计算出了 CF3CN 的零点平均结构:r(CN)= 1.154 (1)埃;r(C-C)= 1.492 (5)埃;∠FCF = 109.2 (2)°;r(C-F)= 1.328 (2)埃。在 J= 1 â†� 0 转变处的测量结果给出了 CF3CN 中氮四极耦合常数 eQq(14N)=-4.666 (4) 
MHz 的改进值。