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- W2384264194 abstract "A novel quaternary tri-ammonium salt,octamethyldiethylenetriammonium triiodide( 2), was synthesized by substitution reaction of pentamethyl diethylenetriamine with methyl iodide in methanol. The single crystal of 2 was obtained in the mixed solvents of acetonitrile / DMF. The polyiodide( 3) was synthesized by reaction of 2 with iodine at reflux in methanol and the single crystal of 3 was prepared. The structures were characterized by IR and single crystal X-ray diffraction. 2 contains a crystalline acetonitrile molecule,and belongs to monoclinic system,space group P2 1 / m with a = 9. 025 1( 7) ,b = 7. 700 4( 5),c = 17. 264 0( 13) ,β = 99. 681( 7) °,V = 1 182. 71( 15) 3, Z = 2,Dc = 1. 868 g·cm- 3,R int = 0. 021 3,R 1 = 0. 059 1,ωR2 = 0. 177 4. 3 belongs to triclinic system,space group Pī with a = 9. 811 6( 7) ,b = 9. 986 5( 8) ,c = 20. 034 9( 16) ,α = 89. 158( 7) °,β = 82. 452( 6) °,γ = 69. 953( 7) °,V = 1 827. 2( 2) 3,Z = 2,Dc = 3. 165 g·cm- 3,R int = 0. 034 8,R 1 = 0. 042 6,ωR 2 = 0. 098 8. The quaternary ammonium cation in 3 was completely wrapped by polyiodide anions,among them I-3 and the adjacent I-5 constitute the U-shaped I2-8,while I 2 and the adjacent I-3 constitute the Z-shaped I2-8,two U-shaped I2-8 and one Z-shaped I2-8 arrange alternately and form a discrete basic unit of supramolecular iodine chains of 3. With the different arrange modes of adjacent discrete basic unit and the direction of opening of U-shaped I2-8, the discrete units of supramolecular iodine chains make the polyiodide pack the three-dimensional structure." @default.
- W2384264194 created "2016-06-24" @default.
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- W2384264194 date "2014-01-01" @default.
- W2384264194 modified "2023-09-23" @default.
- W2384264194 title "Synthesis and Crystal Structure of a Novel Octamethyldiethylenetriammonium Triiodide Polyiodide" @default.
- W2384264194 hasPublicationYear "2014" @default.
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