Zhivonitko Vladimir V, Skovpin Ivan V, Koptyug Igor V
Laboratory of Magnetic Resonance Microimaging, International Tomography Center SB RAS, Instututskaya St. 3A, 630090 Novosibirsk, Russia.
Chem Commun (Camb). 2015 Feb 14;51(13):2506-9. doi: 10.1039/c4cc08115c.
Substantial (31)P NMR signal enhancement of more than two orders of magnitude at 7 T for free and bound PPh3 species was observed under reversible interaction of (PPh3)3Ir(H2)Cl with parahydrogen. The large improvement in sensitivity made single-shot (31)P NMR imaging of a model object possible. The observed effects are temperature and magnetic field dependent as shown experimentally and theoretically.
在7 T磁场下，当三苯基膦铱（H2）氯与仲氢发生可逆相互作用时，观察到游离和结合的三苯基膦物种的磷-31核磁共振信号显著增强，增强幅度超过两个数量级。灵敏度的大幅提高使得对模型物体进行单次磷-31核磁共振成像成为可能。实验和理论结果均表明，观察到的效应与温度和磁场有关。
