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钼多氧阴离子网络(纳米网络)开发量子功能器件开辟一个新的视角。根据这一研究计划，我们研究了{Mo36}纳米网络拓扑结构的控制，{Mox}化合物中纳米网络周围基质(有机分子连接域)厚度的控制，以及纳米网络的电子性质的控制。在这项工作中，我们成功地利用具有不同官能团的短连接体合成了具有不同类型的2D纳米网络(不同于{Mo36}S的堆积和连接顺序)的{Mox}化合物，这些短连接体给出了连接体分子之间额外的相互作用或额外的连接中心。然后，我们用混合连接剂成功地制备了不同基质厚度的{Mo36}化合物。此外，我们还成功地在室温下通过氢还原向纳米网络中添加了电子。为了减少由脱水引起的晶体退化，还考察了化合物的脱水过程，发现了0D结构转变为1D结构，然后是2D纳米网络的轻微脱水现象。

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.