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| Synthesis and Crystal Structure of Arylthiotetrathiafulvalenes and Cupric Bromide Charge Transfer Complexes |
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| Abstract: Four charge-transfer complexes, (1+·)(Cu2Br6)0.5, (2+·)(Cu2Br6)0.5, (3+·)(Cu2Br6)0.5 and (4+·)(CuBr2), have been prepared via diffusion methods comprising arylthio-substituted tetrathiafulvalene derivatives 1-4 and CuBr2. Crystallographic studies indicate that the anions in the complexes, which are derived from CuBr2, show diverse configurations including octahedral (CuⅡ2Br6)2- and linear (CuⅠBr2)-. The plane of the outer four Br atoms and the plane of the central quadrilateral on (CuⅡ2Br6)2- have a different dihedral angle. Compounds 1-4 show radical cation and the central framework of compounds 1-4 are nearly planar in the complexes. The stacking structure and anionic configuration of the charge transfer complexes can be effectively regulated by regulating the substitution positions and sizes of halogen atoms on the aryl groups. |
| Keywords: tetrathiafulvalene cupric bromide crystal structure charge transfer complexes |
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| MA Long-Fei,ZHU Zhao-Hui,HUANG Xiao-Bo.Synthesis and Crystal Structure of Arylthiotetrathiafulvalenes and Cupric Bromide Charge Transfer Complexes[J].Chinese Journal of Inorganic Chemistry,2022,38(5):821-828. |
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