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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >Synthesis and structures of 11,11,12,12-tetracyano-2,6-diiodo-9,10-anthraquinodimethane and its 2:1 cocrystals with anthracene, pyrene and tetrathia-fulvalene
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Synthesis and structures of 11,11,12,12-tetracyano-2,6-diiodo-9,10-anthraquinodimethane and its 2:1 cocrystals with anthracene, pyrene and tetrathia-fulvalene

机译:11,11,12,12-四胞嘧啶-2,6-二碘-9,10-蒽二甲烷及其2:1含有蒽,芘和四氟戊烯的三烯喹啉二甲烷及其2:1的合成结构

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摘要

Radical salts and charge-transfer complexes (CTCs) containing tetracyano-quinodimethane (TCNQ) display electrical conductivity, which has led to the development of many TCNQ derivatives with enhanced electron-accepting properties that are applicable toward organic electronics. To expand the family of TCNQ derivatives, we report the synthesis and structures of 11,11,12,12-tetracyano-2,6-diiodo-9,10-anthraquinodimethane (abbreviated as DITCAQ), C_20H_6I_2N_4, and its charge-transfer complexes with various electron donors, namely DITCAQ-anthracene (2/1), C_20H_6I_2N_4?0.5C_14H_10, (I), DITCAQ-pyrene (2/1), C_20H_6I_2N_4?0.5C_16H_10, (II), and DITCAQ-tetrathiafulvalene (2/1), C_20H_6I_2N_4?0.5C_6H_4S_4, (III). The molecular structure of DITCAQ consists of a 2,6-diiodo-9,10-dihydroanthracene moiety with two malononitrile substituents. DITCAQ possesses a saddle shape, since the malononitrile groups bend significantly up out of the plane of the central ring and the two benzene rings bend down out of the same plane, π-π interactions between DITCAQ and the electron-donor molecules control the degree of charge transfer in cocrystals (I), (II), and (III), which is reflected in both the dihedral angles between the terminal benzene ring and the central ring on the DITCAQ motifs, and their corresponding IR spectra.
机译:含有四环喹甲烷(TCNQ)的根基盐和电荷转移复合物(CTC)显示电导率,其导致许多具有增强的电子接受性能的TCNQ衍生物的发育,该衍生物适用于有机电子。为了扩大TCNQ衍生物的系列,我们报告了11,11,12,12-四环酮-2,6-二碘-9,10-蒽醌(缩写为DITCAQ),C_20H_6I_2N_4及其电荷转移复合物的合成和结构具有各种电子供体,即ditcaq-蒽(2/1),C_20H_6I_2N_4?0.5c_14h_10,(i),ditcaq-芘(2/1),c_20h_6i_2n_4?0.5c_16h_10,(ii)和ditcaq-tetrathiasvalene(2/1 ),c_20h_6i_2n_4?0.5c_6h_4s_4,(iii)。 DITCAQ的分子结构包括2,6-二碘-9,10-二羟基部分,其具有两个丙二腈取代基。 ditcaq拥有鞍形状,因为丙二腈基团在中央环的平面中弯曲,并且两个苯环从相同的平面上弯曲,Ditcaq与电子供给剂分子之间的π-π相互作用控制在CocrystAls(I),(II)和(III)中的电荷转移,其反映在末端苯环和DITCAQ图案上的中央环之间的二面角和它们相应的IR光谱中。

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