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cyclo-Tetra-kis{μ-N'-[(8-oxidoquinolin-7-yl)methyl-idene]isonicotino-hydrazidato}tetra-zinc tetra-hydrate.

Wu XW, Li QL, Ma JP, Dong YB - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: In the title compound, [Zn(4)(C(16)H(10)N(4)O(2))(4)]·4H(2)O, the N'-[(8-oxidoquinolin-7-yl)methyl-idene]isonicotinohydrazidate (L(2-)) ligand binds to the metal ions, forming stable five- and six-membered chelate rings, leaving the pyridyl groups free.The Zn(II) atom has a distorted square-pyramidal geometry being coordinated by one N and two O-atom donors from the doubly deprotonated L(2-) ligand, and by one N atom and one O-atom donor from a symmetry-related L(2-) ligand.Neighbouring mol-ecules are linked by π-π inter-actions [centroid-centroid distance = 3.660 (2) Å] involving the quinolidine rings.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, People's Republic of China.

ABSTRACT
In the title compound, [Zn(4)(C(16)H(10)N(4)O(2))(4)]·4H(2)O, the N'-[(8-oxidoquinolin-7-yl)methyl-idene]isonicotinohydrazidate (L(2-)) ligand binds to the metal ions, forming stable five- and six-membered chelate rings, leaving the pyridyl groups free. The compound is a tetra-nuclear Zn(II) complex centered about a fourfold roto-inversion axis, with the ligand coordinating in the doubly deprotonated form. The Zn(II) atom has a distorted square-pyramidal geometry being coordinated by one N and two O-atom donors from the doubly deprotonated L(2-) ligand, and by one N atom and one O-atom donor from a symmetry-related L(2-) ligand. In the crystal, four symmetry-related lattice water mol-ecules, centred about a fourfold roto-inversion axis, form a cyclic tetra-mer through O-H⋯O hydrogen bonds. These tetra-mers connect to the complex mol-ecules through O-H⋯N hydrogen bonds, forming a chain propagating along [100]. Neighbouring mol-ecules are linked by π-π inter-actions [centroid-centroid distance = 3.660 (2) Å] involving the quinolidine rings.

No MeSH data available.


Related in: MedlinePlus

The molecular structure of the title ZnII complex. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity; only one of the symmetry related water molecules are shown; symmetry codes: (i) -y + 5/4, x - 3/4, -z + 9/4; (ii) y + 3/4, -x + 5/4, -z + 9/4; (iii) -x + 2, -y + 1/2, z.
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Fap1: The molecular structure of the title ZnII complex. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity; only one of the symmetry related water molecules are shown; symmetry codes: (i) -y + 5/4, x - 3/4, -z + 9/4; (ii) y + 3/4, -x + 5/4, -z + 9/4; (iii) -x + 2, -y + 1/2, z.


cyclo-Tetra-kis{μ-N'-[(8-oxidoquinolin-7-yl)methyl-idene]isonicotino-hydrazidato}tetra-zinc tetra-hydrate.

Wu XW, Li QL, Ma JP, Dong YB - Acta Crystallogr Sect E Struct Rep Online (2012)

The molecular structure of the title ZnII complex. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity; only one of the symmetry related water molecules are shown; symmetry codes: (i) -y + 5/4, x - 3/4, -z + 9/4; (ii) y + 3/4, -x + 5/4, -z + 9/4; (iii) -x + 2, -y + 1/2, z.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3379071&req=5

Fap1: The molecular structure of the title ZnII complex. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity; only one of the symmetry related water molecules are shown; symmetry codes: (i) -y + 5/4, x - 3/4, -z + 9/4; (ii) y + 3/4, -x + 5/4, -z + 9/4; (iii) -x + 2, -y + 1/2, z.
Bottom Line: In the title compound, [Zn(4)(C(16)H(10)N(4)O(2))(4)]·4H(2)O, the N'-[(8-oxidoquinolin-7-yl)methyl-idene]isonicotinohydrazidate (L(2-)) ligand binds to the metal ions, forming stable five- and six-membered chelate rings, leaving the pyridyl groups free.The Zn(II) atom has a distorted square-pyramidal geometry being coordinated by one N and two O-atom donors from the doubly deprotonated L(2-) ligand, and by one N atom and one O-atom donor from a symmetry-related L(2-) ligand.Neighbouring mol-ecules are linked by π-π inter-actions [centroid-centroid distance = 3.660 (2) Å] involving the quinolidine rings.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, People's Republic of China.

ABSTRACT
In the title compound, [Zn(4)(C(16)H(10)N(4)O(2))(4)]·4H(2)O, the N'-[(8-oxidoquinolin-7-yl)methyl-idene]isonicotinohydrazidate (L(2-)) ligand binds to the metal ions, forming stable five- and six-membered chelate rings, leaving the pyridyl groups free. The compound is a tetra-nuclear Zn(II) complex centered about a fourfold roto-inversion axis, with the ligand coordinating in the doubly deprotonated form. The Zn(II) atom has a distorted square-pyramidal geometry being coordinated by one N and two O-atom donors from the doubly deprotonated L(2-) ligand, and by one N atom and one O-atom donor from a symmetry-related L(2-) ligand. In the crystal, four symmetry-related lattice water mol-ecules, centred about a fourfold roto-inversion axis, form a cyclic tetra-mer through O-H⋯O hydrogen bonds. These tetra-mers connect to the complex mol-ecules through O-H⋯N hydrogen bonds, forming a chain propagating along [100]. Neighbouring mol-ecules are linked by π-π inter-actions [centroid-centroid distance = 3.660 (2) Å] involving the quinolidine rings.

No MeSH data available.


Related in: MedlinePlus