作者:A.C. Legon、L.C. Willoughby
DOI:10.1016/0301-0104(84)85271-4
日期:1984.4
The rotational spectrum of the weakly bound complex (PH3, HCN) in its vibrational ground state has been observed by the technique of pulsed-nozzle, Fourier-transform microwave spectroscopy. The isotopic species (PH3, HC14N), (PH3, DC14N) and (PH3, HC15N) exhibit spectra of the symmetric-top type from which accurate values of the spectroscopic constants B0, DJ, DJK and Xaa(14N) have been determined
通过脉冲喷嘴,傅立叶变换微波光谱技术观察了弱结合的复合物(PH 3,HCN)在其振动基态下的旋转光谱。同位素物种(PH 3,HC 14 N),(PH 3,DC 14 N)和(PH 3,HC 15 N)表现出对称顶峰型光谱,从中可以准确地得到光谱常数B 0,D J,D JK和X aa(14 N)已确定。对于(PH 3,HC 14N)相应的值是:乙0 = 1553.3709(1)兆赫,d Ĵ = 3.306(3)千赫,d JK = 256.9(6)kHz和X AA(14 N)= -4.3591(14)兆赫。由光谱常数确定的配合物的几何形状是处于平衡状态的C 3v对称性之一,HCN分子沿PH 3的C 3轴排列并取向为与P原子形成氢键。从P到C核的有效距离为r(P⋯C)= 3.913Å。