Synthesis and Crystal Structure of Speleand Imidazolium Cyclophane

Abstract

Abstract: Aspeleand imidazolium cyclophane [C₃₀ H₃₃ N₆ ³⁺ ·Br₃^-·3H₂O](2,21,29-trimethyl-5,16,24-triaza-8,19,27-triazonia heptacyclo [10.10.6.1^1,3.1^5,8.1^10,14.1^16,19.1^24,27 ]tritriazonia- 1,3(29),6,8(30),10,12,14(31),17,19(32),21,25,27(33)-dodecene tribromide trihydrate was synthesized by direct quaterisation of 1,3,5-trimethyl- 2,4,6-tri(imidazolylmethyl)benzene with m-tri(bromomethyl)benzene in high yield. Its molecular and crystal structures were characterized by ¹H NMR, FAB-MS, elementary analysis, IR, UVand X-ray diffraction. The crystal is of monoclinic system, space group P2₁ with a=0.8634(2) nm, b=0.8170(4) nm, c=1.0884(2) nm, β=112.03(1)°, V=1.5828(6) nm³, Z=2, R=0.0336, F (000)=780. The bromides form hydrogen bonds with water molecules. The molecular structure indicates that the title compound can selectively recognize some anions or neutral molecules.

Key words: Cyclophane, Speleand compound, Imidazolium salt, Quaterisation, Crystal structure

CLC Number:

O64116
O625

TrendMD:

YUAN Yi, JIANG Zong-Lin, GAO Ge, YAN Jia-Ming, XIE Ru-Gang, YU Kai-Bei . Synthesis and Crystal Structure of Speleand Imidazolium Cyclophane[J]. Chem. J. Chinese Universities, 2001, 22(3): 412.

References

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