Structural Studies of Inorganic Phosphates, US-Morocco Cooperative Research

项目描述：本项目支持俄克拉荷马州立大学化学系Elizabeth Holt博士和a。Boukhari，摩洛哥拉巴特穆罕默德五世大学拉巴特科学学院固体应用化学实验室。研究将集中于改变AIBIIP2O7配合物的结构，以生产具有商业性能的新材料。许多已知的这类配合物的物理性质是由B原子的行为引起的。因此，将探索改变B原子环境的各种方法。包括：制备形式为MIMIIP2O7的铁磁二磷酸配合物，用两个AI原子取代AIIBIIP2O7中的单个AII原子，以及探索混合价态材料（BIIBIII）P2O7。这些类型的变化预计会导致系统增加金属与金属之间的相互作用，从而产生有趣的物理性质。项目范围：本项目每年资助来自穆罕默德五世大学的两名摩洛哥硕士和博士生到俄克拉荷马州晶体学实验室进行材料结构研究。它还支持两位资深科学家访问对方的实验室。该项目允许具有样品制备和分析研究经验的摩洛哥小组与在实验化学，特别是晶体学方面具有丰富经验的美国科学家进行合作。大部分合成工作将在摩洛哥完成，这个国家拥有世界上最大的磷矿，而结构表征将在霍尔特博士的实验室进行，并由她监督。Holt博士最近与Boukhari博士进行了一次非常成功的合作，并发表了几篇论文。该项目将以这种关系为基础，并将通过吸纳更多来自摩洛哥的学生来扩大合作。这个项目非常符合国际项目司的目标。

Description: This project is to support collaborative research by Dr. Elizabeth Holt, Chemistry Department, Oklahoma State University, and Dr.A. Boukhari, Laboratoire de Chemie du Solide Appliquee, Faculte des Sciences de Rabat, Universite Mohammed V, in Rabat, Morocco. The research will focus on alteration of the structures of AIBIIP2O7 complexes with the aim of producing new materials with commercial properties. The physical properties of many known complexes of this family arise from the behavior of the B atom. Thus various methods of altering the environment of the B atom will be explored. Included are: the preparation of ferromagnetic diphosphate complexes of form MIMIIP2O7, substitution of two AI atoms for a single AII atom in AIIBIIP2O7 and exploration of mixed valence materials, (BIIBIII)P2O7. These types of changes are expected to lead to systems with increased metal to metal interaction, and thus interesting physical properties. Scope: This project is to fund visits by two Moroccan M.S. and Ph.D. students from the Universite Mohammed V to the crystallographic laboratories at Oklahoma State U. ,each year, to carry out materials structural research. It also supports visits by the two senior scientists to each other laboratories. The project allows the collaboration of the Moroccan group, with experience in sample preparation and analytical studies, with the US scientist who has considerable experience in experimental chemistry, especially in crystallography. The bulk of the synthetic work will be done in Morocco, a country with the largest phosphate mines in the world, while the structural characterization will be done at Dr. Holt's laboratory under her supervision. Dr. Holt has had a very successful collaboration recently with Dr. Boukhari which resulted in several publications. This project will build on this relationship, and will expand the collaboration by including additional students from Morocco. The project fits well with the objectives of the Division of International Programs.