Research of Nancsized Polyoxomolybdate Nanonets, Aiming at the development of quantum devices

本研究计划的目的是为利用纳米级钼{Mo_x}多氧阴离子网络（纳米网）开发量子功能器件开辟新的前景。根据这一研究计划，我们研究了{Mo_36}纳米网络拓扑结构的控制(1)，{Mo_x}化合物中纳米网络周围的基质（有机分子连接域）厚度的控制(2)，以及纳米网络的电子性质的控制(3)。在这项工作中，我们成功地通过使用具有各种功能基团的短连接体，在连接体分子之间提供额外的相互作用，或额外的连接中心，制造出具有各种类型的二维纳米{Mo_x}化合物（{Mo_36}的填充和连接序列不同）。然后，我们成功地用混合连接剂制备了不同基质厚度的{Mo_36}化合物。此外，我们成功地在室温下通过氢还原将电子添加到纳米网络中。为了减少由于脱水导致的晶体降解，我们还研究了{Mo_36}化合物的脱水过程，发现了新的轻度脱水现象，即0D结构转变为1D结构，然后是2D纳米结构。

The aim of this research program is to open up a new perspective for the development of the quantum functional devices using the network (nanonet) of nano-sized polyoxoanion of molybdenum {Mo_x}. According to this research program we studied the control of {Mo_36} nanonet topologies 1), the control of matrix(organic molecular linker domain) -thickness around the nanonets in the {Mo_x} compounds 2), and of electronic properties of the nanonets 3).In this work we succeeded to fabricate {Mo_x} compounds having various types of 2D nanonet (differing in packing and linking sequences of {Mo_36}s) by using the short linkers with various functional groups, which give additional interactions among linker molecules, or additional centers of linkage. Then, we succeeded to prepare {Mo_36} compounds having various matrix-thickness by using mixed linkers. Furthermore, we succeeded to add electrons to nanonets by the hydrogen reduction at room temperature. To reduce crystal degradation due to dehydration, the dehydration processes of the {Mo_36} compounds were also examined, and the mild dehydration phenomenon, in which 0D structure turned into 1D, and then 2D nanonets, was newly found.