Departamento de Química Física, Facultad de Ciencias y Tecnología Química, Universidad de Castilla-La Mancha, Avenida Camilo José Cela, s/n. 13071 Ciudad Real, Spain.
J Phys Chem A. 2012 Apr 26;116(16):4097-107. doi: 10.1021/jp212076g. Epub 2012 Apr 16.
Relative kinetic techniques have been used to measure the rate coefficients for the reactions of oxygenated terpenes (menthol, borneol, fenchol, camphor, and fenchone) and cyclohexanol with hydroxyl radicals (OH) and chlorine atoms (Cl) at 298 ± 2 K and atmospheric pressure. The rate coefficients obtained for the reactions of the title compounds with OH are the following (in units of 10(-11) cm(3) molecule(-1) s(-1)): (1.48 ± 0.31), (2.65 ± 0.32), (2.49 ± 0.30), (0.38 ± 0.08), (0.39 ± 0.09) for menthol, borneol, fenchol, camphor, and fenchone, respectively. For the corresponding reactions with Cl atoms the rate coefficients are as follows (in units of 10(-10) cm(3) molecule(-1) s(-1)): (3.21 ± 0.26), (3.40 ± 0.28), (2.72 ± 0.13), (2.93 ± 0.17), (1.59 ± 0.10), and (1.86 ± 0.29) for cyclohexanol, menthol, borneol, fenchol, camphor, and fenchone, respectively. The reported error is twice the standard deviation. Product studies of the reactions were performed using multipass in situ FTIR (Fourier transform infrared spectroscopy) and solid-phase microextraction (SPME) with analysis by GC-MS (gas chromatography-mass spectrometry). A detailed mechanism is proposed to justify the observed reaction products.
相对动力学技术已被用于测量含氧萜类化合物（薄荷醇、龙脑、葑醇、樟脑和葑酮）和环己醇与羟基自由基（OH）和氯原子（Cl）在 298±2K 和大气压下的反应速率系数。标题化合物与 OH 反应的速率系数如下（单位为 10(-11)cm(3)molecule(-1)s(-1))：（1.48±0.31）、（2.65±0.32）、（2.49±0.30）、（0.38±0.08）、（0.39±0.09）分别为薄荷醇、龙脑、葑醇、樟脑和葑酮。对于相应的与 Cl 原子的反应，速率系数如下（单位为 10(-10)cm(3)molecule(-1)s(-1))：（3.21±0.26）、（3.40±0.28）、（2.72±0.13）、（2.93±0.17）、（1.59±0.10）和（1.86±0.29）分别为环己醇、薄荷醇、龙脑、葑醇、樟脑和葑酮。报告的误差是标准偏差的两倍。使用多通原位 FTIR（傅里叶变换红外光谱）和固相微萃取（SPME）结合 GC-MS（气相色谱-质谱）进行产物研究。提出了一个详细的机制来解释观察到的反应产物。
