Physik Department E20, Technische Universität München , James Franck Str. 1, D-85748 Garching, Germany.
J Am Chem Soc. 2015 Feb 25;137(7):2420-3. doi: 10.1021/ja511611r. Epub 2015 Feb 17.
We report the formation of a metal-organic network on a BN/Cu(111) template by codeposition of carbonitrile-functionalized porphyrin derivatives (2H-TPCN) with Co atoms in an ultrahigh vacuum environment. The resulting metallo-supramolecular structure explored by scanning tunneling microscopy and spectroscopy features a distinct 4-fold coordination motif. Furthermore, we demonstrate an in situ metalation of the tetrapyrrole macrocycles with deposited Co atoms yielding Co-TPCN directly on the BN sheet. Our results provide perspectives for the formation of coordination networks on BN and related systems featuring structural, electronic, and magnetic properties unachievable on metallic supports.
我们在超真空环境中通过将腈官能化卟啉衍生物 (2H-TPCN) 与 Co 原子共沉积，在 BN/Cu(111) 模板上报告了金属-有机网络的形成。通过扫描隧道显微镜和光谱学探测到的所得金属超分子结构具有独特的 4 配位基序。此外，我们证明了通过沉积的 Co 原子对四吡咯大环的原位金属化，直接在 BN 片上生成 Co-TPCN。我们的结果为 BN 和相关系统上配位网络的形成提供了思路，这些系统具有在金属载体上无法实现的结构、电子和磁性特性。
