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Crystal structures of two platinum(II) complexes containing ethyl eugenoxyacetate and 2-amino ­ pyridine

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ABSTRACT

In the title complexes, trans-(2-amino­pyridine-κN)di­chlorido­{4-eth­oxy­carbonyl­meth­oxy-3-meth­oxy-1-[(2,3-η)-prop-2-en-1-yl]benzene}­platinum(II), [PtCl2(C5H6N2)(C14H18O4)], (I), and (2-amino­pyridine-κN)chlorido{5-eth­oxy­car­bon­yl­meth­oxy-4-meth­oxy-1-[(2,3-η)-prop-2-en-1-yl]phenyl-κC1}­platinum(II), [Pt(C14H17O4)Cl(C5H6N2)], (II), the central PtII metal atom displays a distorted square-planar coordination, with the PtII atom coordinated by the pyridine N atom, the C=C double bond of the eugenol ligand and two Cl atoms for (I) or one Cl atom and a C atom of the phenyl ring for (II). The allyl fragment in (I) is disordered, with population parameters 0.614 (14) and 0.386 (14) for the two positions of the central C atom. The least-squares planes through the two aromatic ring systems make a dihedral angle of 51.10 (13)° for (I) and 78.5 (2)° for (II). Intra­molecular N—H⋯O and N—H⋯π inter­actions occur in (I). In (I), inversion dimers formed by C—H⋯Cl inter­actions are further linked into chains parallel to the b axis by C—H⋯O hydrogen bonds. Both aromatic rings are involved in π–π inter­actions, with centroid-to-centroid distances of 3.508 (3) and 3.791 (3) Å. In (II), inversion dimers form chains parallel to the b axis by C—H⋯O inter­actions.

No MeSH data available.


Packing diagram of (I), showing the C—H⋯O (red dotted lines) and C—H⋯Cl inter­actions (green dotted lines). [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) x, y − 1, z.]
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fig3: Packing diagram of (I), showing the C—H⋯O (red dotted lines) and C—H⋯Cl inter­actions (green dotted lines). [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) x, y − 1, z.]

Mentions: The crystal packing of (I) is dominated by hydrogen bonding and π–π inter­actions. Inversion dimers formed by C18—H18⋯Cl9i hydrogen bonds are further linked into chains parallel to the b axis by C7—H7⋯O26ii hydrogen bonds [Table 1 ▸ and Fig. 3 ▸; symmetry codes: (i) x, y − 1, z; (ii) −x, −y + 1, −z + 1]. Both aromatic rings show π–π stacking, with Cg1⋯Cg1iii = 3.791 (3) Å for the phenyl ring and Cg2⋯Cg2iv = 3.508 (3) Å for the pyridine ring [Cg1 and Cg2 are the centroids of the C14–C19 and N2/C3–C7 rings; symmetry codes: (iii) −x + 1, −y + 1, −z + 1; (iv) −x, −y, −z + 2; Fig. 4 ▸].


Crystal structures of two platinum(II) complexes containing ethyl eugenoxyacetate and 2-amino ­ pyridine
Packing diagram of (I), showing the C—H⋯O (red dotted lines) and C—H⋯Cl inter­actions (green dotted lines). [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) x, y − 1, z.]
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Related In: Results  -  Collection

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fig3: Packing diagram of (I), showing the C—H⋯O (red dotted lines) and C—H⋯Cl inter­actions (green dotted lines). [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) x, y − 1, z.]
Mentions: The crystal packing of (I) is dominated by hydrogen bonding and π–π inter­actions. Inversion dimers formed by C18—H18⋯Cl9i hydrogen bonds are further linked into chains parallel to the b axis by C7—H7⋯O26ii hydrogen bonds [Table 1 ▸ and Fig. 3 ▸; symmetry codes: (i) x, y − 1, z; (ii) −x, −y + 1, −z + 1]. Both aromatic rings show π–π stacking, with Cg1⋯Cg1iii = 3.791 (3) Å for the phenyl ring and Cg2⋯Cg2iv = 3.508 (3) Å for the pyridine ring [Cg1 and Cg2 are the centroids of the C14–C19 and N2/C3–C7 rings; symmetry codes: (iii) −x + 1, −y + 1, −z + 1; (iv) −x, −y, −z + 2; Fig. 4 ▸].

View Article: PubMed Central - HTML - PubMed

ABSTRACT

In the title complexes, trans-(2-amino­pyridine-κN)di­chlorido­{4-eth­oxy­carbonyl­meth­oxy-3-meth­oxy-1-[(2,3-η)-prop-2-en-1-yl]benzene}­platinum(II), [PtCl2(C5H6N2)(C14H18O4)], (I), and (2-amino­pyridine-κN)chlorido{5-eth­oxy­car­bon­yl­meth­oxy-4-meth­oxy-1-[(2,3-η)-prop-2-en-1-yl]phenyl-κC1}­platinum(II), [Pt(C14H17O4)Cl(C5H6N2)], (II), the central PtII metal atom displays a distorted square-planar coordination, with the PtII atom coordinated by the pyridine N atom, the C=C double bond of the eugenol ligand and two Cl atoms for (I) or one Cl atom and a C atom of the phenyl ring for (II). The allyl fragment in (I) is disordered, with population parameters 0.614 (14) and 0.386 (14) for the two positions of the central C atom. The least-squares planes through the two aromatic ring systems make a dihedral angle of 51.10 (13)° for (I) and 78.5 (2)° for (II). Intra­molecular N—H⋯O and N—H⋯π inter­actions occur in (I). In (I), inversion dimers formed by C—H⋯Cl inter­actions are further linked into chains parallel to the b axis by C—H⋯O hydrogen bonds. Both aromatic rings are involved in π–π inter­actions, with centroid-to-centroid distances of 3.508 (3) and 3.791 (3) Å. In (II), inversion dimers form chains parallel to the b axis by C—H⋯O inter­actions.

No MeSH data available.