Preparative, structural, and electrical studies of the 1 : 1 and 2 : 3 tetracyanoquinodimethane salts of 4,4′-bithiopyranylidene (BTP)
作者:Daniel J. Sandman、Arthur J. Epstein、Timothy J. Holmes、Jung-Si Lee、Donald D. Titus
DOI:10.1039/p29800001578
日期:——
The preparation, single crystal growth, and single crystal conductivity of the 1 : 1 and 2 : 3 7,7,8,8-tetracyanoquinodimethane (TCNQ) salts of 4,4′-bithiopyranylidene are reported. The crystal structure of the 2 : 3 salt, the first structure of a 2 : 3 TCNQ salt from a neutral planar closed-shell donor, has been determined by X-ray diffraction at room temperature. (BTP)2(TCNQ)3 crystallizes in the triclinic
报道了4,4'-联硫代吡喃基亚烷基的1:1和2:3 7,7,8,8-四氰基喹二甲烷(TCNQ)盐的制备,单晶生长和单晶电导率。已经通过室温下的X射线衍射确定了2:3盐的晶体结构,这是来自中性平面封闭壳供体的2:3 TCNQ盐的第一结构。(BTP)2(TCNQ)3在三斜空间群P中结晶,a = 8.351(5),b = 17.445(4),c = 8.020(4),α= 97.35(3),β= 103.10(4) ,γ= 88.15(4),û = 1 128.6(8)一种3,ž = 1,d计算值。= 1.467厘米–3, D obs。= 1.46(1)g cm –3。其结构通过Patterson和傅立叶方法求解,以最终ř 0.046 1个490独特反射与˚F 0 >3σ( ˚F 0)。(BTP) 2(TCNQ) 3具有混合的堆叠晶体结构,该结构使一对BTP阳离子自由基和三个TCNQ分子种类交替