Correlated rotational switching in two-dimensional self-assembled molecular rotor arrays.
Correlated rotational switching in two-dimensional self-assembled molecular rotor arrays.
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DOI：
10.1038/ncomms16057
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发表时间：
2017-07-04
影响因子：
16.6
通讯作者：
Sykes ECH
中科院分区：
文献类型：
--
作者：
Wasio NA;Slough DP;Smith ZC;Ivimey CJ;Thomas SW III;Lin YS;Sykes ECH
分子装置能够执行从机械运动到简单计算的许多功能。然而，由于它们彼此耦合或与电极等接口耦合相关的困难，它们的用途在某种程度上受到限制。耦合分子器件的自组装为构建更大的实体提供了一种选择，这些实体可以更容易地与现有技术集成。在这里，我们证明了有序的金属有机阵列可以通过前体分子转子分子与金属表面的反应自发地形成。扫描隧道显微镜使阵列中的单个转子能够被切换，并对相邻转子中的结果开关进行成像。有序分子转子阵列的结构和尺寸决定了内部亚分子转子单元的相关开关特性。我们的结果表明，二维转子晶体的自组装产生了具有关联动力学的系统，这是事先无法预测的。单分子机器具有多种功能，但仍然缺乏将它们之间的运动耦合起来的方法。这里，Wasio等人。报道了自发形成的二维晶体的涌现行为，这些晶体显示了它们的亚分子转子单元的相关开关。
Molecular devices are capable of performing a number of functions from mechanical motion to simple computation. Their utility is somewhat limited, however, by difficulties associated with coupling them with either each other or with interfaces such as electrodes. Self-assembly of coupled molecular devices provides an option for the construction of larger entities that can more easily integrate with existing technologies. Here we demonstrate that ordered organometallic arrays can be formed spontaneously by reaction of precursor molecular rotor molecules with a metal surface. Scanning tunnelling microscopy enables individual rotors in the arrays to be switched and the resultant switches in neighbouring rotors imaged. The structure and dimensions of the ordered molecular rotor arrays dictate the correlated switching properties of the internal submolecular rotor units. Our results indicate that self-assembly of two-dimensional rotor crystals produces systems with correlated dynamics that would not have been predicted a priori. Single molecular machines are capable of a variety of functions, but methods to couple motion between them are still lacking. Here, Wasio et al. report the emergent behaviour of spontaneously formed two-dimensional crystals, which display correlated switching of their sub-molecular rotor units.
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影响因子：
15
作者：
Heinrich, Thomas;Traulsen, Christoph H. -H.;Holzweber, Markus;Richter, Sebastian;Kunz, Valentin;Kastner, Sarah K.;Krabbenborg, Sven O.;Huskens, Jurriaan;Unger, Wolfgang E. S.;Schalley, Christoph A.
通讯作者：
Schalley, Christoph A.
影响因子：
38.3
作者：
Tierney, Heather L.;Murphy, Colin J.;Sykes, E. Charles H.
通讯作者：
Sykes, E. Charles H.
影响因子：
4.4
作者：
Ning, Y.;Cramer, J. R.;Linderoth, T. R.
通讯作者：
Linderoth, T. R.
影响因子：
17.1
作者：
Soe, We-Hyo;Manzano, Carlos;Joachim, Christian
通讯作者：
Joachim, Christian
影响因子：
56.9
作者：
Donhauser, ZJ;Mantooth, BA;Weiss, PS
通讯作者：
Weiss, PS