Limits...
Bis[5-(pyridin-2-yl)pyrazine-2-carbo-nitrile-κ(2)N(4),N(5)](trifluoro-acetato-κO)silver(I).

Li J, Jia XC, Qi J, Liu YY, Ding Y - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: In the asymmetric unit of the title compound, [Ag(C(10)H(6)N(4))(2)(CF(3)CO(2))], there two mononuclear but slightly different complex units.In each, two κ(2)N:N-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the Ag(I) atom, giving an N(4)O square-pyramidal coordination geometry with one trifluoro-acetate O atom at the apex.The difference between the two lies in the Ag-N bond lengths: in one complex, three normal [range 2.272 (5)-2.552 (5) Å] and one long [2.706 (4) Å] and in the second, two normal [2.254 (5) and 2.290 (5) Å] and two long [2.647 (5) and 2.675 (5) Å] are present.

View Article: PubMed Central - HTML - PubMed

Affiliation: Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300201, People's Republic of China.

ABSTRACT
In the asymmetric unit of the title compound, [Ag(C(10)H(6)N(4))(2)(CF(3)CO(2))], there two mononuclear but slightly different complex units. In each, two κ(2)N:N-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the Ag(I) atom, giving an N(4)O square-pyramidal coordination geometry with one trifluoro-acetate O atom at the apex. The difference between the two lies in the Ag-N bond lengths: in one complex, three normal [range 2.272 (5)-2.552 (5) Å] and one long [2.706 (4) Å] and in the second, two normal [2.254 (5) and 2.290 (5) Å] and two long [2.647 (5) and 2.675 (5) Å] are present. Short inter-molecular F⋯F contacts [2.586 (4) Å] and weak π-π stacking inter-actions [minimum ring centroid separation 3.836 (5) Å] between pyridyl and pyrazinyl rings connect the complex units, forming columns which extend along the b-axis direction.

No MeSH data available.


Related in: MedlinePlus

The atom-numbering scheme for the two independent complex units in the asymmetric unit of the title complex. Displacement ellipsoids are drawn at the 30% probability level and the intermolecular F···F interaction is shown as a dashed line. All H atoms are omitted for clarity.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC3515095&req=5

Fap1: The atom-numbering scheme for the two independent complex units in the asymmetric unit of the title complex. Displacement ellipsoids are drawn at the 30% probability level and the intermolecular F···F interaction is shown as a dashed line. All H atoms are omitted for clarity.


Bis[5-(pyridin-2-yl)pyrazine-2-carbo-nitrile-κ(2)N(4),N(5)](trifluoro-acetato-κO)silver(I).

Li J, Jia XC, Qi J, Liu YY, Ding Y - Acta Crystallogr Sect E Struct Rep Online (2012)

The atom-numbering scheme for the two independent complex units in the asymmetric unit of the title complex. Displacement ellipsoids are drawn at the 30% probability level and the intermolecular F···F interaction is shown as a dashed line. All H atoms are omitted for clarity.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3515095&req=5

Fap1: The atom-numbering scheme for the two independent complex units in the asymmetric unit of the title complex. Displacement ellipsoids are drawn at the 30% probability level and the intermolecular F···F interaction is shown as a dashed line. All H atoms are omitted for clarity.
Bottom Line: In the asymmetric unit of the title compound, [Ag(C(10)H(6)N(4))(2)(CF(3)CO(2))], there two mononuclear but slightly different complex units.In each, two κ(2)N:N-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the Ag(I) atom, giving an N(4)O square-pyramidal coordination geometry with one trifluoro-acetate O atom at the apex.The difference between the two lies in the Ag-N bond lengths: in one complex, three normal [range 2.272 (5)-2.552 (5) Å] and one long [2.706 (4) Å] and in the second, two normal [2.254 (5) and 2.290 (5) Å] and two long [2.647 (5) and 2.675 (5) Å] are present.

View Article: PubMed Central - HTML - PubMed

Affiliation: Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300201, People's Republic of China.

ABSTRACT
In the asymmetric unit of the title compound, [Ag(C(10)H(6)N(4))(2)(CF(3)CO(2))], there two mononuclear but slightly different complex units. In each, two κ(2)N:N-chelating 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands surround the Ag(I) atom, giving an N(4)O square-pyramidal coordination geometry with one trifluoro-acetate O atom at the apex. The difference between the two lies in the Ag-N bond lengths: in one complex, three normal [range 2.272 (5)-2.552 (5) Å] and one long [2.706 (4) Å] and in the second, two normal [2.254 (5) and 2.290 (5) Å] and two long [2.647 (5) and 2.675 (5) Å] are present. Short inter-molecular F⋯F contacts [2.586 (4) Å] and weak π-π stacking inter-actions [minimum ring centroid separation 3.836 (5) Å] between pyridyl and pyrazinyl rings connect the complex units, forming columns which extend along the b-axis direction.

No MeSH data available.


Related in: MedlinePlus