Ambient-Pressure Organic Superconductors κ-(DMEDO-TSeF)2[Au(CN)4](solv.):Tc Tuning by Modification of the Solvent of Crystallization
作者:Takashi Shirahata、Megumi Kibune、Hiroko Yoshino、Tatsuro Imakubo
DOI:10.1002/chem.200700314
日期:2007.9.17
space group symmetry. kappa(L)-(DMEDO-TSeF)(2)[Au(CN)(4)](solv.) (solv.=DOL, DHF, THP, 1,3-DOX or DHP) crystallizes in the orthorhombic space group Pnma, and T(c) of the kappa(L) phase varies by 1.7-5.3 K according to the size and shape of the solvent of crystallization. On the other hand, kappa'-(DMEDO-TSeF)(2)[Au(CN)(4)](solv.) (solv.=DOL or 1,4-DOX) crystallizes in the noncentrosymmetric monoclinic
不对称的pi供体二甲基(乙烯二氧基)四硒富勒烯(DMEDO-TSeF)提供了六种新的有机超导体,这些有机超导体具有单价的方形Au(CN)(4)](-)离子和环状醚作为结晶溶剂。六种新的有机超导体kappa-(DMEDO-TSeF)(2)[Au(CN)(4)](溶剂)[溶剂= 1,3-二氧戊环(DOL),2,5-二氢呋喃(DHF),四氢吡喃(THP),1,3-二恶烷(1,3-DOX),3,4-二氢-2H-吡喃(DHP)或1,4-二恶烷(1,4-DOX)]分为两个子阶段kappa(L)和kappa'根据其空间组对称性的差异而不同。kappa(L)-(DMEDO-TSeF)(2)[Au(CN)(4)](溶剂化)(溶剂化= DOL,DHF,THP,1,3-DOX或DHP)在正交空间群中结晶根据结晶溶剂的大小和形状,κ(L)相的Pnma和T(c)变化1.7-5.3K。另一方面,kappa' -(DM