In this report the initial results of a breakthrough and novel method to energetically connect the lowest-lying trans- (e₀) and the gauche- (e₁ and o₁) states of Ethyl Alcohol. It is well known that the transitions between the trans- and gauche states in the ground internal rotational levels for OH torsion are forbidden due to symmetry considerations. This presented a considerable challenge to model the Hamiltonian for this molecule on a global basis and the most successful model required these two states to be treated separately as if the trans- and gauche- states represent two different molecules. The present communication reports for the very first time the method to energetically connect the trans- sub-states and the gauche sub-states with experimental accuracy. This would open a new vista to theoretical spectroscopists for a global model with both types of symmetry. The novel method has been conceived recently with the availability of high-resolution far-infrared (FIR) with very little noise. The spectroscopic idea behind the approach is presented here using a few representative states in the form of a rapid publication. The details are in progress and will be commutated in a future report.

在本报告中，突破性的新颖方法的初步结果是大力连接最低位的乙醇的反式（e ₀）和gauche-（e ₁和o ₁）状态。众所周知，在地面内部旋转水平上，反态和gauche状态之间的过渡由于对称性考虑，禁止OH扭转。这给在全球范围内对该分子建立哈密顿量建模提出了巨大挑战，最成功的模型要求将这两种状态分别对待，就好像反式和高斯状态代表两种不同的分子一样。本通讯首次报告了以实验精度将跨子状态和gauche子状态进行能量连接的方法。这将为理论上的光谱学家打开一种同时具有两种对称性的全局模型的新视野。最近构思了这种新颖的方法，其具有非常小的噪声的高分辨率远红外（FIR）。这种方法背后的光谱思想以快速出版的形式在这里使用了一些代表性的状态。