Martin K C, Pinnick D A, Lee S A, Anderson A, Smith W, Griffey R H, Mohan V
Department of Physics and Astronomy, University of Toledo, OH 43606, USA.
J Biomol Struct Dyn. 1999 Jun;16(6):1159-67. doi: 10.1080/07391102.1999.10508324.
Room temperature Raman and infrared (IR) spectra of crystalline adenosine at pressures between 1 atm and 10 GPa are reported. Vibrational modes were identified through assignments in the literature. Many modes were found to increase in frequency with pressure; however, some irregularities were observed. Discontinuities were observed in numerous Raman and IR modes near 2.5 GPa, indicating a phase transition. The modes associated with the glycosidic bond shift significantly down in frequency near this pressure, suggesting a weakening of the associated bond. The IR modes associated with hydrogen-stretching motions were found to decrease in frequency with pressure.
报道了在1个大气压至10吉帕压力下结晶腺苷的室温拉曼光谱和红外（IR）光谱。通过文献中的归属确定了振动模式。发现许多模式的频率随压力增加；然而，也观察到了一些不规则性。在2.5吉帕附近的许多拉曼和红外模式中观察到了不连续性，表明发生了相变。与糖苷键相关的模式在该压力附近频率显著下移，表明相关键的减弱。发现与氢拉伸运动相关的红外模式频率随压力降低。
