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Crystal structure of bis-(?-N-hy-droxy-picolin-amid-ato)bis-[bis-(N-hy-droxy-picolinamide)-sodium].


ABSTRACT: The title compound, [Na2(C6H5N2O2)2(C6H6N2O2)4], is a centrosymmetric coordination dimer based on the sodium(I) salt of N-hy-droxy-picolinamide. The mol-ecule has an {Na2O6(?-O)2} core with two bridging carbonyl O atoms and two hydroxamate O atoms of two mono-deprotonated residues of N-hy-droxy-picolinamide, while two neutral N-hy-droxy-picolinamide mol-ecules are coordinated in a monodentate manner to each sodium ion via the carbonyl O atoms [the Na-O distances range from 2.3044?(2) to 2.3716?(2)?Å]. The penta-coordinated sodium ion exhibits a distorted trigonal-pyramidal coordination polyhedron. In the crystal, the coordination dimers are linked into chains along the c axis via N-H?O and N-H?N hydrogen bonds; the chains are linked into a two-dimensional framework parallel to (100) via weak C-H?O and ?-? stacking inter-actions.

SUBMITTER: Safyanova IS 

PROVIDER: S-EPMC5209763 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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Crystal structure of bis-(μ-<i>N</i>-hy-droxy-picolin-amid-ato)bis-[bis-(<i>N</i>-hy-droxy-picolinamide)-sodium].

Safyanova Inna S IS   Ohui Kateryna A KA   Omelchenko Irina V IV  

Acta crystallographica. Section E, Crystallographic communications 20170101 Pt 1


The title compound, [Na<sub>2</sub>(C<sub>6</sub>H<sub>5</sub>N<sub>2</sub>O<sub>2</sub>)<sub>2</sub>(C<sub>6</sub>H<sub>6</sub>N<sub>2</sub>O<sub>2</sub>)<sub>4</sub>], is a centrosymmetric coordination dimer based on the sodium(I) salt of <i>N</i>-hy-droxy-picolinamide. The mol-ecule has an {Na<sub>2</sub>O<sub>6</sub>(μ-O)<sub>2</sub>} core with two bridging carbonyl O atoms and two hydroxamate O atoms of two mono-deprotonated residues of <i>N</i>-hy-droxy-picolinamide, while two neutral <i>N  ...[more]

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