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4-[(2'-Cyano-biphenyl-4-yl)meth-yl]morpholin-4-ium perchlorate.

ABSTRACT: In the title salt, C(18)H(19)N(2)O(+)·ClO(4) (-), the morpholinium ring adopts a chair conformation, while the two benzene rings make a dihedral angle of 62.65?(17)°. Inter-molecular N-H?N hydrogen bonds and weak C-H?O inter-actions occur in the crystal structure.

SUBMITTER: Ou-Yang HY

PROVIDER: S-EPMC3344166 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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4-[(2'-Cyano-biphenyl-4-yl)meth-yl]morpholin-4-ium hexa-fluoridophosphate.

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Project description:The structure of the title salt, C(13)H(20)N(3)O(+)·0.94ClO(4) (-)·0.06Cl(-), contains a zwitterionic Schiff base with a net positive charge and a perchlorate anion having substitutional disorder with Cl. In the cation, the azomethine N atom is protonated and donates hydrogen bonds to the phenolate O atom and to the tertiary N atom of the piperazine ring. In the crystal, two Schiff base mol-ecules are linked about a center of inversion by a pair of N-H?O hydrogen bonds. The resulting dimers are N-H?O and C-H?O hydrogen bonded to the perchlorate anions, forming a three-dimensional structure. The network is further consolidated by C-H?? inter-actions.

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