The synthesis and X-ray crystal structure of a new molecular clip 2 was reported. It （C24H24N4O2, Mr = 400.47） crystallizes in the space group C2/c with a = 15.587（2）, b = 8.5805（12）, c = 15.259（2） A, β = 102...The synthesis and X-ray crystal structure of a new molecular clip 2 was reported. It （C24H24N4O2, Mr = 400.47） crystallizes in the space group C2/c with a = 15.587（2）, b = 8.5805（12）, c = 15.259（2） A, β = 102.448（3）°, V= 1992.9 （5）A63, Z = 4, Dc = 1.335 g/cm63,μ = 0.087 mm^-1 and F（000） = 848. It remains monomeric in the crystal and a tape-like structure is formed in the crystal structure of molecular clip. The most unusual structural feature of 2 is the boat conformation of its cyclohexyl ring imposed by the ring fusion at C（9）-C（9a）.展开更多
A new glycoluril derivative 2 has been synthesized and characterized by single- crystal X-ray diffraction. It crystallizes in triclinic, space group Pī with a = 13.128（7）, b = 13.245（7）, c = 14.016（8） ？, α = ...A new glycoluril derivative 2 has been synthesized and characterized by single- crystal X-ray diffraction. It crystallizes in triclinic, space group Pī with a = 13.128（7）, b = 13.245（7）, c = 14.016（8） ？, α = 98.805（10）, β = 102.036（9）, γ = 101.470（10）°, V = 2287（2） ？3, Z = 2, C54H38N8O6·H2O, Mr= 912.94, F（000） = 952, T = 298（2） K, Dc = 1.326 g/cm3 and μ = 0.090 mm-1. Due to the intermolecular C–H… interactions, two monomeric molecular clips dimerize as a dimeric building block in the crystalline state. Those building blocks form tape-like supramolecular polymers driven by intermolecular C–H…N interactions and water molecules which stabilized in the packing structure served as hydrogen-bonding donors.展开更多
A new molecular clip based on diethoxycarbonyl glycoluril 5： C42H36N6O6, has been synthesized and characterized by single-crystal X-ray diffraction. The crystal belongs to orthorhombic, space group Pbca with a = 12.7...A new molecular clip based on diethoxycarbonyl glycoluril 5： C42H36N6O6, has been synthesized and characterized by single-crystal X-ray diffraction. The crystal belongs to orthorhombic, space group Pbca with a = 12.7639（5）, b = 16.9727（7）, c = 34.2069（14） A, V = 7410.5（5） A3, Z = 8, Dc= 1.292 g/cm3, p（MoKa） = 0.088 mm-1, F（000） = 3024, the final R = 0.0655 and wR = 0.1566 for 5123 observed reflections with I 〉 2tr（/）. The crystal structural analysis shows that intermolecular C-H...O and C-H...N hydrogen bonds stabilized the whole crystal structure. The binding study by fluorescence spectroscope titration showed that the title molecule can selectively recognize Fe3~ with fluorescence quenching.展开更多
The title compound 6H,7H,13H,14H-5a,6a,7a,12a,13a,14a-hxaazbenz[f]indeno[2,1,8- ija]naphth[2,3-f]azulene- 14b, 14c-dicarboxylic-5,8,12,15-tetrahydro-6,8,14-trioxo-diethyl ester （C27H26N6OT, Mr = 546.54） has been syn...The title compound 6H,7H,13H,14H-5a,6a,7a,12a,13a,14a-hxaazbenz[f]indeno[2,1,8- ija]naphth[2,3-f]azulene- 14b, 14c-dicarboxylic-5,8,12,15-tetrahydro-6,8,14-trioxo-diethyl ester （C27H26N6OT, Mr = 546.54） has been synthesized and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P211c with a = 8.8129（6）, b = 17.9883（13）, c = 16.2623（11）A, β = 98.770（2）°, V = 2547.9（3）A3, Z = 4, De= 1.425 g/cm3, p（MoKa） = 0.105 mm-1, F（000） = 1144, the final R = 0.0672 and wR = 0.1162 for 2275 observed reflections with I 〉 2σ（I）. The crystal structural analysis shows that intermolecular C-H...O hydrogen bonds and π-π stacking interactions result in a three-dimensional framework. The binding study by fluorescence spectroscopy titration showed that he title compound can selectively recognize Fe3＋ with fluorescence quenching.展开更多
基金the National Natural Science Foundation of China (20672042)
文摘The synthesis and X-ray crystal structure of a new molecular clip 2 was reported. It （C24H24N4O2, Mr = 400.47） crystallizes in the space group C2/c with a = 15.587（2）, b = 8.5805（12）, c = 15.259（2） A, β = 102.448（3）°, V= 1992.9 （5）A63, Z = 4, Dc = 1.335 g/cm63,μ = 0.087 mm^-1 and F（000） = 848. It remains monomeric in the crystal and a tape-like structure is formed in the crystal structure of molecular clip. The most unusual structural feature of 2 is the boat conformation of its cyclohexyl ring imposed by the ring fusion at C（9）-C（9a）.
基金supported by Central China Normal University and the National Science Foundation of China(No.21272085)
文摘A new glycoluril derivative 2 has been synthesized and characterized by single- crystal X-ray diffraction. It crystallizes in triclinic, space group Pī with a = 13.128（7）, b = 13.245（7）, c = 14.016（8） ？, α = 98.805（10）, β = 102.036（9）, γ = 101.470（10）°, V = 2287（2） ？3, Z = 2, C54H38N8O6·H2O, Mr= 912.94, F（000） = 952, T = 298（2） K, Dc = 1.326 g/cm3 and μ = 0.090 mm-1. Due to the intermolecular C–H… interactions, two monomeric molecular clips dimerize as a dimeric building block in the crystalline state. Those building blocks form tape-like supramolecular polymers driven by intermolecular C–H…N interactions and water molecules which stabilized in the packing structure served as hydrogen-bonding donors.
基金supported by the Hubei Province Education Ministry Foundation of China(No.D20112507)
文摘A new molecular clip based on diethoxycarbonyl glycoluril 5： C42H36N6O6, has been synthesized and characterized by single-crystal X-ray diffraction. The crystal belongs to orthorhombic, space group Pbca with a = 12.7639（5）, b = 16.9727（7）, c = 34.2069（14） A, V = 7410.5（5） A3, Z = 8, Dc= 1.292 g/cm3, p（MoKa） = 0.088 mm-1, F（000） = 3024, the final R = 0.0655 and wR = 0.1566 for 5123 observed reflections with I 〉 2tr（/）. The crystal structural analysis shows that intermolecular C-H...O and C-H...N hydrogen bonds stabilized the whole crystal structure. The binding study by fluorescence spectroscope titration showed that the title molecule can selectively recognize Fe3~ with fluorescence quenching.
基金supported by the National Natural Science Foundation of China (Nos. 20672042 and 20472022)
文摘The title compound 6H,7H,13H,14H-5a,6a,7a,12a,13a,14a-hxaazbenz[f]indeno[2,1,8- ija]naphth[2,3-f]azulene- 14b, 14c-dicarboxylic-5,8,12,15-tetrahydro-6,8,14-trioxo-diethyl ester （C27H26N6OT, Mr = 546.54） has been synthesized and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P211c with a = 8.8129（6）, b = 17.9883（13）, c = 16.2623（11）A, β = 98.770（2）°, V = 2547.9（3）A3, Z = 4, De= 1.425 g/cm3, p（MoKa） = 0.105 mm-1, F（000） = 1144, the final R = 0.0672 and wR = 0.1162 for 2275 observed reflections with I 〉 2σ（I）. The crystal structural analysis shows that intermolecular C-H...O hydrogen bonds and π-π stacking interactions result in a three-dimensional framework. The binding study by fluorescence spectroscopy titration showed that he title compound can selectively recognize Fe3＋ with fluorescence quenching.
