Mondal Prakash Chandra, Singh Vikram, Jeyachandran Yekkoni Lakshmanan, Zharnikov Michael
†Department of Chemistry, University of Delhi, Delhi 110007, India.
‡Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel.
ACS Appl Mater Interfaces. 2015 Apr 29;7(16):8677-86. doi: 10.1021/acsami.5b00953. Epub 2015 Apr 20.
Surface-confined heterometallic molecular triads (SURHMTs) were fabricated on SiOx-based solid substrates using optically rich and redox-active Fe-, Os-, and Ru-based terpyridyl complexes as metalloligands and Cu(2+) ions as linkers. Optical and electrochemical studies reveal efficient electronic intramolecular communication in these assemblies. The UV-vis spectra of the triads exhibit a superposition of the metal-to-ligand charge-transfer bands of individual complexes, providing a significant enlargement of the optical window, useful for application. Similarly, cyclic voltammograms of SURHMT layers show a variety of redox peaks corresponding to individual complexes as well as multi-redox states at a low potential. Interaction of a representative SURHMT assembly with redox-active NOBF4 was investigated and used as a basis for configuring molecular logic gates.
利用富含光学活性和氧化还原活性的铁基、锇基和钌基三联吡啶配合物作为金属配体，铜（Ⅱ）离子作为连接体，在基于氧化硅的固体基质上制备了表面受限异金属分子三元组（SURHMTs）。光学和电化学研究表明，这些组装体中存在高效的分子内电子通信。三元组的紫外可见光谱显示了各个配合物的金属到配体电荷转移带的叠加，显著扩大了光学窗口，有利于应用。同样，SURHMT层的循环伏安图显示了对应于各个配合物的各种氧化还原峰以及在低电位下的多氧化还原状态。研究了一种代表性SURHMT组装体与氧化还原活性NOBF4的相互作用，并以此为基础配置分子逻辑门。
