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3,3,9,9-Tetra-phenyl-2,4,8,10-tetra-oxa-spiro-[5.5]undeca-ne.

ABSTRACT: In the title compound, C(31)H(28)O(4), the asymmetric unit contains two crystallographically independent mol-ecules. In these two mol-ecules, the four dihedral angles between each pair of phenyl rings on the same C atoms are 75.4?(1), 83.0?(1), 85.0?(1) and 80.4?(2)°. All of the nonplanar six-membered heterocycles adopt chair conformations. Inter-molecular C-H?? and weak C-H?O inter-actions link the mol-ecules and are effective in the stabilization of the crystal structure.

SUBMITTER: Sun X

PROVIDER: S-EPMC3009283 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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3,3,9,9-Tetra-phenyl-2,4,8,10-tetra-oxa-spiro-[5.5]undeca-ne.

Sun Xiaoqiang X Chen Liang L Jiang Yan Y Li Zhengyi Z

Acta crystallographica. Section E, Structure reports online 20101031 Pt 11

In the title compound, C(31)H(28)O(4), the asymmetric unit contains two crystallographically independent mol-ecules. In these two mol-ecules, the four dihedral angles between each pair of phenyl rings on the same C atoms are 75.4 (1), 83.0 (1), 85.0 (1) and 80.4 (2)°. All of the nonplanar six-membered heterocycles adopt chair conformations. Inter-molecular C-H⋯π and weak C-H⋯O inter-actions link the mol-ecules and are effective in the stabilization of the crystal structure. ...[more]

PMID: 21589189

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