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Crystal structure of bis-(2,2':6',2''-terpyridine-κ(3) N,N',N'')nickel(II) dicyanidoaurate(I).

White F, Sykora RE - Acta Crystallogr Sect E Struct Rep Online (2014)

Bottom Line: The two tridentate terpyridine ligands define the coordination of the Ni(2+) cation, resulting in a nearly octa-hedral coordination sphere, although there is not any imposed crystallographic symmetry about the Ni(2+) site.The structure does not demonstrate any π-π stacking.Non-classical C-H⋯N inter-actions between the cations and anions build up a three-dimensional network.

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Affiliation: University of South Alabama, Department of Chemistry, Mobile, AL 36688, USA.

ABSTRACT
The title compound, [Ni(C15H11N3)2][Au(CN)2]2, is an ionic compound composed of bis-(2,2':6',2''-terpyridine)-nickel(II) dications and dicyanidoaurate(I) anions in a 1:2 ratio. The two tridentate terpyridine ligands define the coordination of the Ni(2+) cation, resulting in a nearly octa-hedral coordination sphere, although there is not any imposed crystallographic symmetry about the Ni(2+) site. The two nearly linear dicyanidoaurate(I) anions [C-Au-C = 179.0 (2) and 178.2 (2)°] contain a short aurophilic inter-action of 3.1017 (3) Å. The structure does not demonstrate any π-π stacking. Non-classical C-H⋯N inter-actions between the cations and anions build up a three-dimensional network.

No MeSH data available.


An illustration of the packing of the mol­ecular entities of (I).
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fig2: An illustration of the packing of the mol­ecular entities of (I).

Mentions: A packing diagram of the title compound is illustrated in Fig. 2 ▶. There are not any classical hydrogen bonds within the structure of the title compound. However, the cation and anion are stabilized by relatively weak non-classical hydrogen-bonding inter­actions from H atoms on the terpyridine rings to terminal N atoms on the cyanidometallates. There are six such inter­actions ranging from 3.235 (7) to 3.421 (7) Å, if using a D⋯A distance of 3.5 Å as the upper defined limit. Details of the inter­actions can be found in Table 1 ▶. The other type of non-classical inter­molecular inter­actions that exists in the structure is the one aurophilic inter­action discussed in the Structural commentary above. There are no π–π stacking inter­actions in the structure.


Crystal structure of bis-(2,2':6',2''-terpyridine-κ(3) N,N',N'')nickel(II) dicyanidoaurate(I).

White F, Sykora RE - Acta Crystallogr Sect E Struct Rep Online (2014)

An illustration of the packing of the mol­ecular entities of (I).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4257396&req=5

fig2: An illustration of the packing of the mol­ecular entities of (I).
Mentions: A packing diagram of the title compound is illustrated in Fig. 2 ▶. There are not any classical hydrogen bonds within the structure of the title compound. However, the cation and anion are stabilized by relatively weak non-classical hydrogen-bonding inter­actions from H atoms on the terpyridine rings to terminal N atoms on the cyanidometallates. There are six such inter­actions ranging from 3.235 (7) to 3.421 (7) Å, if using a D⋯A distance of 3.5 Å as the upper defined limit. Details of the inter­actions can be found in Table 1 ▶. The other type of non-classical inter­molecular inter­actions that exists in the structure is the one aurophilic inter­action discussed in the Structural commentary above. There are no π–π stacking inter­actions in the structure.

Bottom Line: The two tridentate terpyridine ligands define the coordination of the Ni(2+) cation, resulting in a nearly octa-hedral coordination sphere, although there is not any imposed crystallographic symmetry about the Ni(2+) site.The structure does not demonstrate any π-π stacking.Non-classical C-H⋯N inter-actions between the cations and anions build up a three-dimensional network.

View Article: PubMed Central - HTML - PubMed

Affiliation: University of South Alabama, Department of Chemistry, Mobile, AL 36688, USA.

ABSTRACT
The title compound, [Ni(C15H11N3)2][Au(CN)2]2, is an ionic compound composed of bis-(2,2':6',2''-terpyridine)-nickel(II) dications and dicyanidoaurate(I) anions in a 1:2 ratio. The two tridentate terpyridine ligands define the coordination of the Ni(2+) cation, resulting in a nearly octa-hedral coordination sphere, although there is not any imposed crystallographic symmetry about the Ni(2+) site. The two nearly linear dicyanidoaurate(I) anions [C-Au-C = 179.0 (2) and 178.2 (2)°] contain a short aurophilic inter-action of 3.1017 (3) Å. The structure does not demonstrate any π-π stacking. Non-classical C-H⋯N inter-actions between the cations and anions build up a three-dimensional network.

No MeSH data available.