Acta Phys. -Chim. Sin. ›› 1989, Vol. 5 ›› Issue (01): 10-14.doi: 10.3866/PKU.WHXB19890104
• ARTICLE •
Wang Dehua; Levy,George C.
~(13)C relaxation parameters of morphine in solution were measured at 90.1 and 62.9 MHz. An axially symmetric rotational model was applied to calculate the ro- tational rates.The calculated rotational rates are 8.6×10~9 revolution s~(-1) about the principal X-axis and 6.1×10~9 revolution s~(-1) about Y-axis.The N-CH_3 methyl internal rotation rate is 5.7×10~9 revolution s~(-1) and the internal rotation barrier is 4.59 kcal mo1~(-1).
Wang Dehua; Levy,George C.. Analysis of Axially Symmetric Molecular Tumbling and Methyl Internal Rotation Rates of Morphine by 13C Spin-Lattice Relaxation Time T1[J].Acta Phys. -Chim. Sin., 1989, 5(01): 10-14.
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