CRC: Multi-dimensional Molecular Metals, Crystal Design, and Superconductivity

康奈尔大学的Stephen Lee和弗朗西斯J. DiSalvo以及马萨诸塞州大学的Dhandapani Venkataraman得到了数学和物理科学理事会化学部和多学科活动办公室的支持，他们的跨学科合作旨在开发分子金属的晶体设计策略。他们将研究如何控制有机系统中从绝缘状态到金属状态的转变。因为超导临界温度Tc在含有轻元素的金属中最高，（即，富勒烯化物和氧化铜中的碳和氧），该研究将集中于许多明显不同的多维有机金属。重要的多维晶体设计参数，如包装效率，本地偶极-偶极相互作用，疏水-亲水相互作用，氢键和配位键，将划定。 在这些系统中，这将包括多维π协调的分子网络，酞菁和无机集群耦合到π有机物，电子结构对Tc-的影响将被调查，并连接到有机半导体中的空穴和电子迁移率的问题。化学合作研究奖（CRC）授予致力于广泛化学兴趣问题的跨学科科学家团队。这些奖项的重点是研究和培训的新合作模式。

Stephen Lee and Francis J. DiSalvo of Cornell University and Dhandapani Venkataraman of the University of Massachusetts are supported by the Division of Chemistry and the Office of Multidisciplinary Activities of the Mathematical and Physical Sciences Directorate for their interdisciplinary collaboration aimed developing crystal design strategies for molecular metals. They will study ways to control the transition from the insulating state to the metallic state in organic systems. Because the superconducting critical temperature, Tc, is highest in metals containing light elements, (ie., the carbon and oxygen in fullerides and copper oxides) this study will focus on a number of distinctly different multi-dimensional organic metals. Important multi-dimensional crystal design parameters, such as packing efficiencies, local dipole-dipole interactions, hydrophobic-hydrophilic interactions, hydrogen bonding and coordination bonding, will be delineated. In these systems, which will include multidimensional pi coordinated molecular networks, pthalocyanines and inorganic clusters coupled to pi organics, effects of electronic structure on Tc- will be investigated, and connections made to the problem of hole and electron mobility in organic semiconductors. Collaborative Research in Chemistry (CRC) awards are given to interdisciplinary teams of scientists working on problems of broad chemical interest. The emphasis in these awards is on new collaborative modes of research and training.