Organic Molecular Magnetic Materials

有机分子磁性材料

• 批准号: 0809791
• 负责人: Paul Lahti
• 金额: $ 38.4万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0809791&HistoricalAwards=false
• 关键词: Organic; Molecular; Magnetic; Materials

Intellectural Merits. Magnetic materials are worth billions in existing technologies. Chemical structure-based designs of new materials have much promise for new, useful types of electronic behavior. The PI proposes to make molecules with attached functional groups, which give specific magnetic and/or conductive properties. Stable organic radicals will be synthesized that are expected to self-assemble, for example, by using strongly directional hydrogen bonds. These organic pure solids, mixed solids, and hybrid systems (polymers containing radicals) will be tested for magnetic behavior and some for conductivity of electrical current as well. The most important scientific goals are: (1) to find good synthetic and purification methods to give materials that are stable and have potentially useful magneto-electronic properties; and (2) to discover new relationships linking molecular structure and crystal packing to magnetic and/or conductive properties. Broader Impacts. Graduate students in this project will benefit from international exchange of expertise and collaborative ties, in particular with scientists from Brazil and Japan. Training will be highly interdisciplinary, including ways to make molecules, to determine how they assemble into solid packing patterns, and to correlate the patterns with magnetic or conductive behavior. Interdisciplinary training is vital in the modern techno-scientific marketplace, where projects have short timelines and workers must be adaptable and multi-talented. Communication skills will be emphasized by frequent group presentations, as well as presentations at national, regional, and/or local meetings. The group has in recent years had more women than men, a reversal of the situation from 20 years ago. This made the group a "magnet" for other women to feel comfortable in joining a group that does much organic synthesis and math-oriented physical chemistry. For example, four of five Ph.D. degrees completed during 2006 in the Lahti group went to women. Interest in the work by female potential graduate students in recent entering classes has remained strong. The proposed work will also be linked to efforts to attract students from the UMass-Amherst-led Northeast Alliance for Graduate Education and the Professoriate (NEAGEP), an NSF-supported program that funds under-represented minority groups to pursue graduate scientific careers on our campus (http://www.neagep.org). Dr. Lahti and his group have been part of on-campus hospitability and recruiting of visiting students who are considering NEAGEP. This program will be an important resource for recruiting graduate student candidates from under-represented minority backgrounds into the field of materials science.

智力上的优点。磁性材料在现有技术中价值数十亿美元。 基于化学结构的新材料设计对新的、有用的电子行为类型有很大的希望。PI建议制造具有附加官能团的分子，这些官能团提供特定的磁性和/或导电性能。稳定的有机自由基将被合成，预计自组装，例如，通过使用强定向氢键。这些有机纯固体、混合固体和混合体系（含有自由基的聚合物）将被测试磁性行为，有些还将被测试电流的导电性。最重要的科学目标是：（1）找到良好的合成和纯化方法，以获得稳定并具有潜在有用的磁电性能的材料;（2）发现分子结构和晶体堆积与磁性和/或导电性能之间的新关系。 更广泛的影响。该项目的研究生将受益于国际专业知识交流和合作关系，特别是与巴西和日本的科学家。培训将是高度跨学科的，包括制造分子的方法，以确定它们如何组装成固体包装模式，并将这些模式与磁性或导电行为相关联。跨学科培训在现代科技市场中至关重要，项目时间短，工人必须适应性强，多才多艺。沟通技巧将通过频繁的小组演讲以及在国家，地区和/或地方会议上的演讲来强调。 近年来，该组织的女性人数多于男性，与20年前的情况相反。 这使得这个小组成为一个“磁铁”，吸引其他女性加入一个从事有机合成和数学导向的物理化学的小组。例如，五分之四的博士2006年在拉赫蒂团体完成的学位授予了妇女。 最近入学的女性潜在研究生对工作的兴趣仍然很浓厚。拟议的工作也将与努力吸引学生从马萨诸塞大学阿默斯特领导的东北联盟研究生教育和教授（NEAGEP），一个NSF支持的计划，资助代表性不足的少数群体在我们的校园追求研究生科学事业（http：www.neagep.org）。拉赫蒂博士和他的团队一直在校园里热情好客，并招募正在考虑NEAGEP的来访学生。该计划将是招募来自代表性不足的少数民族背景的研究生候选人进入材料科学领域的重要资源。