Alkali Metal Adducts to Organic Complexants: From Alkalides and Electrides to Organic Anions

9610335染料该项目的重点是合成和表征结晶盐，其中含有碱金属（如锂、钠和钾）与各种有机络合剂之间的反应产物，形成两种新型化合物：在冠醚和穴状配体盐中含有碱金属阴离子的碱金属化物，和二氢氧化物，其中络合阳离子的正电荷由空穴离域电子而不是由阴离子平衡。 这里特别感兴趣的是化合物，其中电子具有与空穴中的捕获电子或芳族自由基阴离子几乎相同的化学势。 电子密度分布在两个位置之间的固体化合物应该具有有趣的电子，磁性和光学性质，以及室温稳定性的可能性。 这些研究可能会导致使用的固态电子器件，并作为合成和催化的新试剂的碱金属和碱土金属。 他们还将提供一个机会，研究在一个新的材料类当前的问题，包括里德伯型基态，电子间的磁相互作用和自旋波，在1，2和3维的电子电导率，和非金属到金属的过渡。 ***

9610335 Dye This project is focused on the synthesis and characterization of crystalline salts that contain the products of reaction between alkali metals such as lithium, sodium and potassium and various organic complexants to form two novel types of compounds: alkalides, containing alkali metal anions in crown ether and cryptand salts, and electrides, in which the positive charge of complex cations is balanced by cavity- delocalized electrons rather than by anions. Of particular interest here are compounds in which electrons have nearly the same chemical potential as trapped electrons in cavities or as aromatic radical anions. Solid compounds in which the electron density is distributed between the two sites should have interesting electronic, magnetic and optical properties, together with the possibility of room temperature stability. %%% These investigations may lead to the use of electrides and alkalides as solid-state electronic devices, and as novel reagents for synthesis and catalysis. They will also provide an opportunity to study in a new class of materials current problems in photophysics including Rydberg-type ground states, inter-electron magnetic interactions and spinwaves, electronic conductivity in 1,2 and 3 dimensions, and non- metal to metal transitions. ***