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5,5'-Dimeth-oxy-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methyl-idyne)]diphenol.

ABSTRACT: The asymmetric unit of the title Schiff base compound, C(21)H(26)N(2)O(4), consists of four crystallographically independent mol-ecules, viz. A, B, C and D. The A and D, and the B and C mol-ecules are related by a pseudo-inversion centre, and the remaining pairs of mol-ecules differ in the orientations of one of the meth-oxy groups. In each independent mol-ecule, intra-molecular O-H?N hydrogen bonds generate two S(6) ring motifs. The dihedral angles between the benzene rings in mol-ecules A, B, C and D are 65.86?(19), 50.41?(19), 68.59?(19) and 50.85?(19)°, respectively. In the crystal structure, mol-ecules are linked by C-H?O hydrogen bonds, forming R(2) (2)(8) dimers. In addition, weak C-H?? inter-actions are observed.

SUBMITTER: Yeap CS

PROVIDER: S-EPMC2959808 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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5,5'-Dimeth-oxy-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methyl-idyne)]diphenol.

Yeap Chin Sing CS Kargar Hadi H Kia Reza R Fun Hoong-Kun HK

Acta crystallographica. Section E, Structure reports online 20081120 Pt 12

The asymmetric unit of the title Schiff base compound, C(21)H(26)N(2)O(4), consists of four crystallographically independent mol-ecules, viz. A, B, C and D. The A and D, and the B and C mol-ecules are related by a pseudo-inversion centre, and the remaining pairs of mol-ecules differ in the orientations of one of the meth-oxy groups. In each independent mol-ecule, intra-molecular O-H⋯N hydrogen bonds generate two S(6) ring motifs. The dihedral angles between the benzene rings in mol-ecules A, B, ...[more]

PMID: 21581360

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6,6'-Dimeth-oxy-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methyl-idyne)]diphenol.

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