CRYSTAL STRUCTURE OF AN ASYMMETRIC PYRYLIUM- SQUARYLIUM DYE,2-[1-(2,6-DI-t-BUTYL-4H-PYRAN- 4-YLIDENE)-ETHYL]-4-[1-(2,6-DI-t-BUTYL- 4H-PYRAN-4-YLIDENE)-METHYL] CYCLOBUTENEDIYLIUM-1,3-DIOLATE

doi:10.7517/j.issn.1674-0475.2000.02.104

Abstract

Abstract: The crystal structure of 2-[1-(2,6-di-t-butyl-4H-pyran-4-ylidene)-ethyl]-4-[1-(2,6-di-t-butyl-4H-pyran-4-ylidene)-methyl] cyclobutenediylium-1,3-diolate was determined.It was found that the crystal system is triclinic and the space group is P1,with a=0.9228 (4),b=1.4122 (6),c=0.6124 (3) nm with α=93.97 (4),β=98.14 (5),γ=71.05 (4)º,V=0.7470 (6) nm³ and Z=1.¹H-NMR spectra of the title compound were interpreted by the data of single crystal structure.

Key words: pyrylium-squarylium, cyanine dye, single crystal, crystal structure, ¹H-NMR spectra

CLC Number:

O644

CHEN Jian-guo, HUANG De-yin, LI Yuan. CRYSTAL STRUCTURE OF AN ASYMMETRIC PYRYLIUM- SQUARYLIUM DYE,2-[1-(2,6-DI-t-BUTYL-4H-PYRAN- 4-YLIDENE)-ETHYL]-4-[1-(2,6-DI-t-BUTYL- 4H-PYRAN-4-YLIDENE)-METHYL] CYCLOBUTENEDIYLIUM-1,3-DIOLATE[J]. Imaging Science and Photochemistry, 2000, 18(2): 104-111.

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CRYSTAL STRUCTURE OF AN ASYMMETRIC PYRYLIUM- SQUARYLIUM DYE,2-[1-(2,6-DI-t-BUTYL-4H-PYRAN- 4-YLIDENE)-ETHYL]-4-[1-(2,6-DI-t-BUTYL- 4H-PYRAN-4-YLIDENE)-METHYL] CYCLOBUTENEDIYLIUM-1,3-DIOLATE

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