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

康奈尔大学的Stephen Lee和Francis J. DiSalvo以及马萨诸塞大学的Dhandapani Venkataraman得到了化学学部和数学与物理科学理事会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是最高的。（富勒化物和铜氧化物中的碳和氧）这项研究将重点放在一些明显不同的多维有机金属上。重要的多维晶体设计参数，如填充效率，局部偶极子-偶极子相互作用，疏水-亲水相互作用，氢键和配位键，将被描述。在这些系统中，将包括多维pi协调分子网络，酞菁和与pi有机偶联的无机团簇，电子结构对Tc-的影响将被研究，并与有机半导体中的空穴和电子迁移率问题建立联系。化学合作研究奖（CRC）授予跨学科的科学家团队，他们致力于广泛的化学兴趣问题。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.