二水双（N，N - 二乙基烟酰胺 - κN）双（4 - 甲酰基苯甲酸根 - κO）锰（II）
Diaqua-bis(N,N-diethyl-nicotinamide-κN)bis-(4-formyl-benzoato-κO)manganese(II).
作者信息
Sertçelik Mustafa, Tercan Barış, Sahin Ertan, Necefoğlu Hacali, Hökelek Tuncer
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Feb 25;65(Pt 3):m324-5. doi: 10.1107/S1600536809006047.
The title compound, [Mn(C(8)H(5)O(3))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], contains one Mn(II) atom lying on an inversion centre, two 4-formyl-benzoate and two diethyl-nicotinamide ligands and two coordinated water mol-ecules. All ligands are monodentate. The four O atoms around the Mn atom form a slightly distorted equatorial plane, while the distorted octa-hedral coordination is completed by the two N atoms in the axial positions. An intra-molecular O-H⋯O hydrogen bond occurs in the complex. In the crystal structure, O-H⋯O hydrogen bonds link the mol-ecules through an R(2) (2)(16) ring motif, forming a one-dimensional chain along the a axis. The π-π contact between the pyridyl rings [centroid-centroid distance = 3.629 (2) Å] may further stabilize the structure.
标题化合物[Mn(C₈H₅O₃)₂(C₁₀H₁₄N₂O)₂(H₂O)₂]包含一个位于对称中心的Mn(II)原子、两个4-甲酰基苯甲酸酯和两个二乙烟酰胺配体以及两个配位水分子。所有配体均为单齿配体。Mn原子周围的四个O原子形成一个略微扭曲的赤道平面，而扭曲的八面体配位则由轴向位置的两个N原子完成。该配合物中存在分子内O—H⋯O氢键。在晶体结构中，O—H⋯O氢键通过R₂²(16)环 motif 将分子连接起来，沿a轴形成一维链。吡啶环之间的π-π接触[质心-质心距离 = 3.629 (2) Å]可能进一步稳定该结构。
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