Collaborative Proposal: A Study of Experimental and Theoretical Electron Density Distribution and Bonded Interactions for Sulfide Minerals

合作提案：硫化矿物的实验和理论电子密度分布和键合相互作用研究

• 批准号: 0609906
• 负责人: Robert Downs
• 金额: $ 22.4万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0609906&HistoricalAwards=false
• 关键词: Collaborative; Proposal; Study; Experimental; Theoretical

Metal sulfide minerals are an important class of earth materials that display a fascinating assortment of bonded interactions and structure types in concert with a host of important electronic and magnetic properties. In addition sulfides are important geological materials, providing the reservoir for many rare elements and proving to be useful in understanding global tectonics. However, our understanding of sulfide crystal chemistry and their properties is wanting, especially when contrasted with that of oxide earth materials. In this project a collaborative team from Virginia Tech and the University of Arizona will determine the topological properties of theoretical and experimental electron density distributions for a variety of metal sulfides. The information derived from this project will not only help direct research into the high tech properties of important sulfide phases, but will also serve as models for electron transport in earth materials at the high temperatures and pressures encountered in the Earth's mantle. The knowledge gained about the bonded interactions and bonded architecture in sulfides will lay the foundation for establishing fundamental laws of sulfide crystal chemistry.

金属硫化物矿物是一类重要的地球材料，它表现出各种令人着迷的键合相互作用和结构类型，以及许多重要的电子和磁性特性。此外，硫化物是重要的地质材料，为许多稀有元素提供了储层，并被证明有助于了解全球构造。然而，我们对硫化物晶体化学及其性质的理解还不够，特别是与氧化物土材料相比。在该项目中，来自弗吉尼亚理工大学和亚利桑那大学的合作团队将确定各种金属硫化物的理论和实验电子密度分布的拓扑特性。该项目获得的信息不仅有助于直接研究重要硫化物相的高科技特性，而且还将作为地球材料在地幔高温高压下电子传输的模型。关于硫化物中键合相互作用和键合结构的知识将为建立硫化物晶体化学的基本定律奠定基础。