Lee S A, Lettress L, Anderson A
Department of Physics & Astronomy, University of Toledo, Toledo, OH 43606, USA.
J Biomol Struct Dyn. 2007 Jun;24(6):579-88. doi: 10.1080/07391102.2007.10507147.
Room temperature mid-infrared experiments between 500 and 1800 cm(-1) have been performed on crystalline deoxyadenosine as a function of pressure up to about 10 GPa. Discontinuities observed near 2 and 4 GPa indicate that two separate phase transitions occur at these pressures. Changes in the spectra suggest that both transitions involve a rearrangement of the pucker of the deoxyribose moiety. The wavenumbers of the vibrational modes shift to higher values with applied pressure. Our results for deoxyadenosine are compared to similar measurements on adenosine. Assignments for the observed modes are made on the basis of work published in the literature.
在高达约10吉帕的压力下，对结晶脱氧腺苷进行了500至1800厘米⁻¹之间的室温中红外实验。在2吉帕和4吉帕附近观察到的不连续性表明，在这些压力下发生了两个独立的相变。光谱变化表明，两个相变都涉及脱氧核糖部分褶皱的重新排列。振动模式的波数随着施加的压力向更高值移动。将我们对脱氧腺苷的结果与腺苷的类似测量结果进行了比较。根据文献中发表的工作对观察到的模式进行了归属。
