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| Title: | Crystal structure and physical properties of 1,3,6,8-tetrakis(ethylthio)pyrene-Qmnt complex |
| Other Titles: | 1, 3, 6, 8-Tetrakis(ethylthio)pyrene-Qmnt錯合物的晶體結構和物性 |
| Authors: | 李榮熹;Lee, Jung-Si;Huang, Kuo-Chih;王文竹;Wang, Wen-Jwu;Lee, Gene-Hsiang |
| Contributors: | 淡江大學化學學系 |
| Date: | 1995-03-15 |
| Issue Date: | 2009-12-01 |
| Publisher: | Lausanne: Elsevier S.A. |
| Abstract: | The 1:1 complex of 1,3,6,8-tetrakis(ehylthio)pyrene (TEPY) and 5,10-dihydro-5,10-dioxobenzo[1,2-b:4,5-b′]bis[1,4]dithiin-2,3,7,8-tetracarbonitrile (Qmnt) has been isolated as needle crystals and its crystal structure determined. The triclinic (P1, Z=1) unit cell data are as follows: a=8.213(3) b=9.542(2), c=12.240(2)Å, α=74.01(1), β=83.64(2), γ=76.94(3)•, V=897.0(4) Å3, Dcal=1.531 g cm−3, R=0.045 for 2348 observed reflections (I>2σ (I)). The centrosymmetric π-donor and π-acceptor, situated with their centers of symmetry at (1/2,0,0) and (0,0,0) respectively, are stacking alternately along the a axis. The solid-state IR spectrum, as well as the dilute-solution UV-VIS spectrum, of the complex is essentially a superposition of the spectra of the parent compounds, indicating that it is a neutral charge-transfer complex. The room-temperature conductivity is low (5.2×10−6 S cm−1, measured on single crystal along the needle axis), as expected for a neutral mixed-stack complex. |
| Relation: | Synthetic metals 70(1-3), pp.1231-1232 |
| DOI: | 10.1016/0379-6779(94)02832-J |
| Appears in Collections: | [Graduate Institute & Department of Chemistry] Journal Article
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