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Bis(4-amino-pyridinium) dichromate(VI).

ABSTRACT: The asymmetric unit of the title salt, (C5H7N2)2[Cr2O7], contains four independent cations and two independent dichromate anions. The crystal structure consists of discrete dichromate anions with an eclipsed conformation stacked in layers parallel to (010) at y = 1/4 and y = 3/4. These layers are linked via 4-amino-pyridinium cations by N-H?O and weak C-H?O hydrogen bonds, forming a three-dimensional supra-molecular network. In addition, ?-? inter-actions are present in this structure; the shortest distance separating mean planes through 4-amino-pyridinium cations is 3.679?(6)?Å.

SUBMITTER: Trabelsi S

PROVIDER: S-EPMC4120631 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Bis(4-amino-pyridinium) dichromate(VI).

Trabelsi Sonia S Roisnel Thierry T Dhaouadi Hassouna H Marouani Houda H

Acta crystallographica. Section E, Structure reports online 20140614 Pt 7

The asymmetric unit of the title salt, (C5H7N2)2[Cr2O7], contains four independent cations and two independent dichromate anions. The crystal structure consists of discrete dichromate anions with an eclipsed conformation stacked in layers parallel to (010) at y = 1/4 and y = 3/4. These layers are linked via 4-amino-pyridinium cations by N-H⋯O and weak C-H⋯O hydrogen bonds, forming a three-dimensional supra-molecular network. In addition, π-π inter-actions are present in this structure; the short ...[more]

PMID: 25161526

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