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With the ongoing advancement of high technology, electronic devices are becoming increasingly smaller. Modern computers are made from \"silicon wafers\" that are 1×10-3 cm thick, which is only 1/100 the thickness of a transistor. The next generation will surely need conductive materials that are smaller in size, faster in response, and more energy-efficient; this will require chemists to develop new types of metal conductors at the molecular level – molecular metal conductors. To address these challenges, chemists need to design molecules that allow electrons to flow easily between the atoms of one molecule in the crystal and the atoms of an adjacent molecule. In recent years, Professor Underhill in the UK has designed a type of \"molecular metal\" in which planar molecules are stacked in layers to form a crystal. The metal atoms within each molecule are arranged in rows in one direction (horizontally), allowing electrons to travel horizontally between molecules along these chains of metal atoms, thereby creating a new conductor at the molecular level. This is one of the latest achievements in a representative cutting-edge field of modern chemistry. The key to designing \"molecular metals\" is how to select ligands so that these metal atoms can combine and arrange themselves in an optimal manner. Chemists have found that sulfur and selenium are ideal choices for bonding metals. Each molecule they designed is planar, with a metal atom at the center surrounded by 4 sulfur atoms. Each platinum atom has a platinum atom belonging to the layer above or below it, on either its top or bottom. Therefore, there are many “platinum-sulfur atom chains” through which electrons can pass, running throughout the entire crystal. In the laboratory, the electrical conductivity of these crystals can be measured; at room temperature, their properties are similar to those of \"one-dimensional metals\". The quality of the electrical conductivity of these molecular metals depends on the distance between atoms in the crystal, and this information can be obtained from X-ray diffraction patterns. The properties of this material depend not only on the distance between metal atoms but also on the degree to which sulfur atoms adjacent to each other are brought close together in different stacking arrangements. By comparing the electrical conductivity of the crystal with the X-ray diffraction patterns, chemists can understand how the molecular structure affects the flow of electrons. Clearly, chemists are required to have highly skilled techniques to finely adjust the structure in order to accommodate free electrons. Such “molecular metals” are expected to have a significant impact on future “molecular computers,” and silicon-based electronics technology will be phased out.