Pressure Induced Hydrogen Bonding

小行星9506483 本研究将阐明决定含水矿物中氢键强度的因素及其对结构、相变行为和弹性的影响。 研究方法将系统地分离出阳离子酸度、压力和温度等因素，作为化合物形成氢键的能力的变量，并确定晶体结构和弹性作为这些变量的函数。 研究将包括使用现场中子和X射线测量在高压下测量二氢氧化物的结构，使用布里渊散射测量B系列高压含水相的弹性性质，以及通过现场X射线衍射测量测量这些化合物的状态方程和脱水行为。

9506483 Parise This research will elucidate the factors that determine the strength of the H-bond in hydrous minerals and its effects on structure, phase transition behavior and elasticity. The research approach will systematically isolate such factors as cation acidity, pressure and temperature as variables in a compound's ability to form hydrogen bonds and to determine crystal structure and elasticity as a function of these variables. Studies will include structural measurements of dihydroxides at high pressure using in situ neutron and x-ray measurements, elasticity property measurements of the B series of high pressure hydrous phases using Brillouin scattering, and measurement of equations of state and dehydration behavior of these compounds and chlorite by in situ x-ray diffraction measurements.