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Crystal structure of [2-({2-[(2-azanidyl ­ benzyl ­ idene)amino] ­ benzyl ­ idene}amino)-4-chloro ­ phenol ­ ato]nickel(II)

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ABSTRACT

The title complex, [Ni(C20H14ClN3O)], with an asymmetrically chloride-appended Schiff base ligand has been synthesized and structurally characterized at 100 K. In the compound, the central nickel(II) ion has a square-planar coordination geometry with N3O donors of the π-conjugated tetra­dentate Schiff base ligand. In the crystal, the complexes are connected into an inversion dimer via an Ni⋯Ni inter­action [3.1753 (5) Å] and a pair of π–π inter­actions [centroid–centroid distance = 3.8416 (16) Å]. The dimers are linked via a C—H⋯Cl hydrogen bond, forming a chain along the c-axis direction. The dimer chains inter­act with each other through π–π inter­actions [centroid–centroid distance = 3.8736 (16) Å], forming a layer expanding parallel to the ac plane.

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Packing diagrams of the title compound, showing (a) a chain structure running along the c axis formed by C—H⋯Cl hydrogen bonds (red dashed lines) and (b) the chains viewed along the a axis.
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fig2: Packing diagrams of the title compound, showing (a) a chain structure running along the c axis formed by C—H⋯Cl hydrogen bonds (red dashed lines) and (b) the chains viewed along the a axis.

Mentions: In the crystal, pairs of complex mol­ecules related by an inversion centre are dimerized by an Ni⋯Ni inter­action [3.1753 (5) Å] and a pair of π–π inter­actions between the C1–C6 and C15–C20 benzene rings [centroid–centroid distance = 3.8415 (16) Å]. Such dimerization caused by an Ni⋯Ni inter­action has also been observed in symmetric Ni(salen) compounds (Aullón et al., 1996 ▸; Siegler & Lutz, 2009 ▸). The dimeric mol­ecules of the title compound are linked by C—H⋯Cl hydrogen bonds (Table 1 ▸), producing a chain of dimers along the c axis (Fig. 2 ▸). The dimers further inter­act with each other through π–π inter­actions between the C1–C6 and C8–C13 benzene rings [centroid–centroid distance = 3.8738 (17) Å], forming a column along the a axis (Fig. 3 ▸). Together, these C—H⋯Cl and π–π inter­actions result in a layer parallel to the ac plane. The layers are further linked by a short C—H⋯C contact (Table 1 ▸), giving a three-dimensional network (Fig. 4 ▸).


Crystal structure of [2-({2-[(2-azanidyl ­ benzyl ­ idene)amino] ­ benzyl ­ idene}amino)-4-chloro ­ phenol ­ ato]nickel(II)
Packing diagrams of the title compound, showing (a) a chain structure running along the c axis formed by C—H⋯Cl hydrogen bonds (red dashed lines) and (b) the chains viewed along the a axis.
© Copyright Policy - open-access
Related In: Results  -  Collection

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Show All Figures
getmorefigures.php?uid=PMC5382639&req=5

fig2: Packing diagrams of the title compound, showing (a) a chain structure running along the c axis formed by C—H⋯Cl hydrogen bonds (red dashed lines) and (b) the chains viewed along the a axis.
Mentions: In the crystal, pairs of complex mol­ecules related by an inversion centre are dimerized by an Ni⋯Ni inter­action [3.1753 (5) Å] and a pair of π–π inter­actions between the C1–C6 and C15–C20 benzene rings [centroid–centroid distance = 3.8415 (16) Å]. Such dimerization caused by an Ni⋯Ni inter­action has also been observed in symmetric Ni(salen) compounds (Aullón et al., 1996 ▸; Siegler & Lutz, 2009 ▸). The dimeric mol­ecules of the title compound are linked by C—H⋯Cl hydrogen bonds (Table 1 ▸), producing a chain of dimers along the c axis (Fig. 2 ▸). The dimers further inter­act with each other through π–π inter­actions between the C1–C6 and C8–C13 benzene rings [centroid–centroid distance = 3.8738 (17) Å], forming a column along the a axis (Fig. 3 ▸). Together, these C—H⋯Cl and π–π inter­actions result in a layer parallel to the ac plane. The layers are further linked by a short C—H⋯C contact (Table 1 ▸), giving a three-dimensional network (Fig. 4 ▸).

View Article: PubMed Central - HTML - PubMed

ABSTRACT

The title complex, [Ni(C20H14ClN3O)], with an asymmetrically chloride-appended Schiff base ligand has been synthesized and structurally characterized at 100 K. In the compound, the central nickel(II) ion has a square-planar coordination geometry with N3O donors of the π-conjugated tetra­dentate Schiff base ligand. In the crystal, the complexes are connected into an inversion dimer via an Ni⋯Ni inter­action [3.1753 (5) Å] and a pair of π–π inter­actions [centroid–centroid distance = 3.8416 (16) Å]. The dimers are linked via a C—H⋯Cl hydrogen bond, forming a chain along the c-axis direction. The dimer chains inter­act with each other through π–π inter­actions [centroid–centroid distance = 3.8736 (16) Å], forming a layer expanding parallel to the ac plane.

No MeSH data available.


Related in: MedlinePlus