Vibration/Rotation/Translation Probes of Condensed Phase Dynamics

实验物理化学计划已授予赠款， 加州大学伯克利分校的赫伯特施特劳斯教授 继续他的研究，利用红外线探测复杂的无序系统， (IR)烧孔技术使用红外激光，施特劳斯将照射一个 探针分子（铵离子，在这种情况下），它构成了部分的 复杂的系统，迫使它旋转到一个新的位置，从而 造成红外线吸收下降 这些洞是由 探针分子在低温下的隧穿和弛豫 通过IR吸收监测动力学。 在相关实验中，拉曼和 水、冰和沸石中氢（探测分子）的中子谱 将提供可比较的信息。 氢嵌入在冰或沸石中在许多领域中是重要的， 科学和技术，如天文学，能量储存和催化。 氢是特别重要的，因为它的性质是服从于 计算. 因此，计算氢的时间依赖性 导致光谱的性质可能是深刻的。

The Experimental Physical Chemistry Program has awarded a grant to Professor Herbert Strauss of the University of California at Berkeley to continue his studies probing complex, disordered systems using infrared (IR) hole-burning techniques. Using an IR laser, Strauss will irradiate a probe molecule (ammonium ion, in this case), which makes up part of the complex system, forcing it to rotate into a new position, and thereby creating a dip in the IR absorption. These holes are refilled by tunneling of the probe molecule at low temperature, and the relaxation dynamics is monitored by IR absorption. In related experiment, Raman and neutron spectra of hydrogen (probe molecules) in water, ice and zeolites will be undertaken to yield comparable information. Hydrogen embedded in ice or zeolite is of importance in many fields of science and technology such as astronomy, energy storage, and catalysis. Hydrogen is of special importance because its properties are amenable to calculation. Consequently, calculations of the hydrogen time-dependent properties, which lead to the spectra, are likely to be incisive.