Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 18, 72076 Tuebingen, Germany.
Chemistry. 2013 Mar 4;19(10):3445-50. doi: 10.1002/chem.201203247. Epub 2013 Jan 25.
The successful thin-film deposition of a pyrene-substituted nitronyl nitroxide radical under controlled conditions has been demonstrated. The electronic properties, chemical environment at the interface, and morphology of the thin films have been investigated by a multitechnique approach. Spectroscopic and morphological analyses indicate a Stranski-Krastanov growth mode and weak physisorption of molecules onto the metallic surface. Electron spin resonance (ESR) spectroscopy shows that evaporation processes and deposition do not affect the paramagnetic character of the molecules. Useful concepts for the engineering of new, purely organic-based magnets, which may open the way to fruitful exploitation of organic molecular-beam deposition for assembly on solid surfaces in view of future technological applications, are presented.
已经证明，在控制条件下可以成功地沉积芘取代的硝酮自由基的薄膜。通过多种技术方法研究了薄膜的电子性质、界面的化学环境和形态。光谱和形态分析表明，存在斯特恩-卡斯特纳生长模式和分子在金属表面上的弱物理吸附。电子自旋共振（ESR）光谱表明，蒸发过程和沉积过程不会影响分子的顺磁性质。这些概念对于设计新的纯有机基磁体非常有用，这可能为利用有机分子束沉积在固体表面上进行组装开辟道路，以满足未来的技术应用需求。
