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Crystal structure of 12H+-2,4-benzo-1,5-dioxa-8,12,16-triaza-cyclooctadec-2-ene-7,17-dione picrate
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G. Hundal
Published/Copyright:
September 25, 2009
Abstract
The title compound [C16H24N3O4]+[C6H2N3O7]- resembles 18 membered macrocycle, which has two ether O atoms, two pairs of amide N and O atoms and an amine N as potential donor atoms. The macrocycle has undergone protonation at the amine N atom. The picrate ion interacts through its phenolic O atom with NH2+ group via N-H⋅⋅⋅O hydrogen bond. NH2+ also shows a strong intramolecular H bonding with one of the amide oxygens of the macrocyclic ring. This results in significant conformational changes in one half of the macrocyclic ring. Apart from it, an increased flexibility of the system and a -CH2⋅⋅⋅π interaction renders the cavity non-suitable for accepting small molecules like water or alcohol in it.
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Published Online: 2009-9-25
Published in Print: 2002-1-1
© 2002 Oldenbourg Wissenschaftsverlag GmbH
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Articles in the same Issue
- Editorial
- Optical rotation in RbTiOAsO4 (point group mm2)
- Nitridocompounds of manganese: manganese nitrides and nitridomanganates
- Crystal structure of 12H+-2,4-benzo-1,5-dioxa-8,12,16-triaza-cyclooctadec-2-ene-7,17-dione picrate
- X-ray crystal structure analysis of lanthanide trihydrogeno hydroxy-1-ethanebis(phosphonate)-1,1,dihydrogeno hydroxy-1ethanebis(phosphonate)-1,1 hemiundecahydrate, Ln{[C(CH3)(OH)(P2O6H3)][C(CH3)(OH)(P2O6H2)]}⋅5.5H2O with Ln = Y, Ho, Er; and energy parametrization of the absorption spectrum of the Er compound
- The crystal structure of the decomposition product NH4HC2O4 from powder diffraction data
- Books Received
Articles in the same Issue
- Editorial
- Optical rotation in RbTiOAsO4 (point group mm2)
- Nitridocompounds of manganese: manganese nitrides and nitridomanganates
- Crystal structure of 12H+-2,4-benzo-1,5-dioxa-8,12,16-triaza-cyclooctadec-2-ene-7,17-dione picrate
- X-ray crystal structure analysis of lanthanide trihydrogeno hydroxy-1-ethanebis(phosphonate)-1,1,dihydrogeno hydroxy-1ethanebis(phosphonate)-1,1 hemiundecahydrate, Ln{[C(CH3)(OH)(P2O6H3)][C(CH3)(OH)(P2O6H2)]}⋅5.5H2O with Ln = Y, Ho, Er; and energy parametrization of the absorption spectrum of the Er compound
- The crystal structure of the decomposition product NH4HC2O4 from powder diffraction data
- Books Received
