Dewberry Christopher T, Etchison Kerry C, Grubbs Ii Garry S, Powoski Robert A, Serafin Michal M, Peebles Sean A, Cooke Stephen A
Department of Chemistry, University of North Texas, P.O. Box 305070, Denton, TX 76203, USA.
Phys Chem Chem Phys. 2007 Nov 28;9(44):5897-901. doi: 10.1039/b712798g. Epub 2007 Oct 9.
Hyperfine structures arising from the couplings of the nuclear spin angular momentum of (17)O (I = 5/2) with the end over end rotation of several metal-containing diatomic monoxides have been observed using a Fourier transform microwave spectrometer. The molecules have been produced by reacting (17)O(2) with laser ablated metal atoms. The oxygen-17 nuclear quadrupole coupling constants have been determined for the title molecules and are interpreted in terms of a simple Townes-Dailey model. Also, the oxygen-17 nuclear spin-rotation constants have been determined and used to calculate the oxygen-17 shieldings for each molecule.
利用傅里叶变换微波光谱仪观测到了由¹⁷O(I = 5/2)的核自旋角动量与几种含金属双原子一氧化合物的端对端旋转耦合产生的超精细结构。这些分子是通过使¹⁷O₂与激光烧蚀的金属原子反应产生的。已确定了标题分子的氧-17核四极耦合常数,并根据一个简单的汤斯-戴利模型进行了解释。此外,还确定了氧-17核自旋-旋转常数,并用于计算每个分子的氧-17屏蔽。