A novel analytical method was developed for determining morpholinium cations lacking ultraviolet absorption groups.This determination was carried out by high performance liquid chromatographyindirect ultraviolet（HPLC...A novel analytical method was developed for determining morpholinium cations lacking ultraviolet absorption groups.This determination was carried out by high performance liquid chromatographyindirect ultraviolet（HPLC-1UV） detection using imidazolium ionic liquid as background absorption reagents,and imidazolium ionic liquid aq.soln.-organic solvent as mobile phase by a reversed-phase C18 column.The background ultraviolet absorption reagents,imidazolium ionic liquids and organic solvents were investigated.The imidazolium ionic liquid in the mobile phase is not only the background ultraviolet absorption reagent for IUV,but also an active component to improve the separation of morpholinium cations.It was found that morpholinium cations could be adequately determined when0.5 mmol/L 1-ethyl-3-methylimidazolium tetrafluoroborate aq.soln./methanol（80：20,v/v） was used as mobile phase with an IUV detection wavelength of 210 nm.In this study,the baseline separation of Nmethyl,ethylmorpholinium cations（MEMo） and N-methyl.propylmorpholinium cations（MPMo） was successfully achieved in 8.5 min.The detection limits（S/N = 3） for MEMo and MPMo were 0.15 and0.29 mg/L,respectively.This simple and practical method has been successfully applied to the determination of two morpholinium ionic liquids synthesized by the chemistry laboratory.展开更多
The preparation of a new family of ionic liquids via the reaction between N-methyl-N-allyl- morpholinium cations was reported for the first time, and BF-4, PF-6 and （CF3SO2）2N- [bis（trifluoromethanesufonyl）imide, ...The preparation of a new family of ionic liquids via the reaction between N-methyl-N-allyl- morpholinium cations was reported for the first time, and BF-4, PF-6 and （CF3SO2）2N- [bis（trifluoromethanesufonyl）imide, TFSI-]. The cation has an ether bond and is functionalized by allyl . The structure of these compounds were determined by 1H NMR and elemental analysis. Some properties were also presented in this paper.展开更多
The crystal structure of the title compound was determined, Mr =424. 47, orthorhombic, Pbca, a= 20. 780(5), b= 8. 601 (3), c= 8. 285(3) A, V=1480. 8(5) A, Z=4, Dc= 1. 904 g/cm3, μ(MoKa) = 19. 59 cm-1, F(000)=848.The ...The crystal structure of the title compound was determined, Mr =424. 47, orthorhombic, Pbca, a= 20. 780(5), b= 8. 601 (3), c= 8. 285(3) A, V=1480. 8(5) A, Z=4, Dc= 1. 904 g/cm3, μ(MoKa) = 19. 59 cm-1, F(000)=848.The final R =0. 038, Rw=0.063 for 1554 independent observed reflections (I> 3σ(I) ). The crystal contains an isolated [PdCl4]2- planar tetragon and two morpholiniumcations which are linked to the anion ed N -H...Cl hydrogen bonds with donor-acceptor distances of 3. 394 and 3. 399 A, respectively.展开更多
基金supported by the Natural Science Foundation of Heilongjiang Province(No.B201307)the Ministry of Education of Heilongjiang Province(No.12531192)the Program for Scientific and Technological Innovation Team Construction in Universities of Heilongjiang Province(No.2011TD010)
文摘A novel analytical method was developed for determining morpholinium cations lacking ultraviolet absorption groups.This determination was carried out by high performance liquid chromatographyindirect ultraviolet（HPLC-1UV） detection using imidazolium ionic liquid as background absorption reagents,and imidazolium ionic liquid aq.soln.-organic solvent as mobile phase by a reversed-phase C18 column.The background ultraviolet absorption reagents,imidazolium ionic liquids and organic solvents were investigated.The imidazolium ionic liquid in the mobile phase is not only the background ultraviolet absorption reagent for IUV,but also an active component to improve the separation of morpholinium cations.It was found that morpholinium cations could be adequately determined when0.5 mmol/L 1-ethyl-3-methylimidazolium tetrafluoroborate aq.soln./methanol（80：20,v/v） was used as mobile phase with an IUV detection wavelength of 210 nm.In this study,the baseline separation of Nmethyl,ethylmorpholinium cations（MEMo） and N-methyl.propylmorpholinium cations（MPMo） was successfully achieved in 8.5 min.The detection limits（S/N = 3） for MEMo and MPMo were 0.15 and0.29 mg/L,respectively.This simple and practical method has been successfully applied to the determination of two morpholinium ionic liquids synthesized by the chemistry laboratory.
文摘The preparation of a new family of ionic liquids via the reaction between N-methyl-N-allyl- morpholinium cations was reported for the first time, and BF-4, PF-6 and （CF3SO2）2N- [bis（trifluoromethanesufonyl）imide, TFSI-]. The cation has an ether bond and is functionalized by allyl . The structure of these compounds were determined by 1H NMR and elemental analysis. Some properties were also presented in this paper.
文摘The crystal structure of the title compound was determined, Mr =424. 47, orthorhombic, Pbca, a= 20. 780(5), b= 8. 601 (3), c= 8. 285(3) A, V=1480. 8(5) A, Z=4, Dc= 1. 904 g/cm3, μ(MoKa) = 19. 59 cm-1, F(000)=848.The final R =0. 038, Rw=0.063 for 1554 independent observed reflections (I> 3σ(I) ). The crystal contains an isolated [PdCl4]2- planar tetragon and two morpholiniumcations which are linked to the anion ed N -H...Cl hydrogen bonds with donor-acceptor distances of 3. 394 and 3. 399 A, respectively.
