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Bis{5-[(2-propyn-1-yl-oxy)meth-yl]-1,3-phenyl-ene}-32-crown-10.

ABSTRACT: The mol-ecule of the title compound {systematic name: 17,35-bis-[(2-propyn-1-yl-oxy)meth-yl]-2,5,8,11,14,20,23,26,29,32-deca-oxatricyclo-[31.3.1.1(15,19)]octa-triaconta-1(37),15,17,19?(38),33,35-hex-a--ene}, C(36)H(48)O(12), has crystallographic inversion symmetry and adopts a chair-like conformation. The polyether bridges of the macrocycle adopt gauche conformations and the cavity of the macrocycle is collapsed. In the crystal structure, there are weak inter-molecular C-H?O hydrogen bonds driven in part by the elevated acidity of acetylenyl H atoms.

SUBMITTER: Yang Y 

PROVIDER: S-EPMC3238901 | biostudies-other | 2011 Dec

REPOSITORIES: biostudies-other

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Bis{5-[(2-propyn-1-yl-oxy)meth-yl]-1,3-phenyl-ene}-32-crown-10.

Yang Yu Y   Xu Zhi-Kai ZK   Yang Deng-Ke DK   Pan Shao-Wu SW   Jiang La-Sheng LS  

Acta crystallographica. Section E, Structure reports online 20111109 Pt 12

The mol-ecule of the title compound {systematic name: 17,35-bis-[(2-propyn-1-yl-oxy)meth-yl]-2,5,8,11,14,20,23,26,29,32-deca-oxatricyclo-[31.3.1.1(15,19)]octa-triaconta-1(37),15,17,19 (38),33,35-hex-a--ene}, C(36)H(48)O(12), has crystallographic inversion symmetry and adopts a chair-like conformation. The polyether bridges of the macrocycle adopt gauche conformations and the cavity of the macrocycle is collapsed. In the crystal structure, there are weak inter-molecular C-H⋯O hydrogen bonds drive  ...[more]