Nine metal compounds of Mn(II), Zn(II) and Cd(II) derived from dinitropyridone ligands (3,5-dinitro-pyrid-2-one, 2HDNP; 3,5-dinitropyrid-4-one, 4HDNP and 3,5-dinitropyrid-4-one-N- hydroxide, 4HDNPO) were characterized by elemental analysis, FT-IR and partly by TG-DSC. Three of which were further structurally characterized by X-ray single-crystal diffraction analysis. The structures of the three compounds, Mn(4DNP)(2)(H(2)O)(4), 4, Zn(4DNPO)(2)(H(2)O)(4), 8, and Cd(4DNPO)(2)(H(2)O)(4), 9, crystallize in the monoclinic space group P2(1)/n and Z = 2, with a = 8.9281(9), b = 9.1053(9), c = 10.6881(11) A, beta = 97.9840(10) degrees for 4; a = 8.4154(7), b = 9.9806(8), c = 10.5695(8) A, beta = 97.3500(10) degrees for 8; a = 8.5072(7), b = 10.2254(8), c = 10.5075(8) A, beta 96.6500(10) degrees for 9. All three complexes are octahedral consisting of four equatorial water molecules, and two nitrogen or oxygen donor ligands (DNP or DNPO). The abundant hydrogen-bonding and pi-pi stacking interactions seem to contribute to stabilization of the crystal structures of the compounds. The TG-DTG results revealed that the complexes showed a weight loss sequence corresponding to all coordinated water molecules, nitro groups, the breaking of the pyridine rings and finally the formation of metal oxides.

中文翻译：

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3,5-二硝基吡啶酮衍生的过渡金属化合物的合成、结构表征和热分析。

源自二硝基吡啶酮配体（3,5-二硝基-吡啶-2-one、2HDNP；3,5-二硝基吡啶-4-one、4HDNP和3）的九种金属化合物Mn(II)、Zn(II)和Cd(II) ,5-二硝基吡啶-4-一-N-氢氧化物，4HDNPO) 通过元素分析、FT-IR 和部分通过 TG-DSC 进行表征。其中三个进一步通过 X 射线单晶衍射分析进行结构表征。三种化合物的结构，Mn(4DNP)(2)(H(2)O)(4), 4, Zn(4DNPO)(2)(H(2)O)(4), 8 和 Cd( 4DNPO)(2)(H(2)O)(4), 9，在单斜空间群 P2(1)/n 和 Z = 2 中结晶，a = 8.9281(9), b = 9.1053(9)， c = 10.6881(11) A，β = 97.9840(10) 度为 4；a = 8.4154(7), b = 9.9806(8), c = 10.5695(8) A, beta = 97.3500(10) 度为 8；a = 8.5072(7), b = 10.2254(8), c = 10.5075(8) A, beta 96.6500(10) 度为 9。所有三个配合物都是八面体，由四个赤道水分子和两个氮或氧供体配体（DNP 或 DNPO）组成。丰富的氢键和 pi-pi 堆积相互作用似乎有助于稳定化合物的晶体结构。TG-DTG 结果表明，配合物显示出与所有配位的水分子、硝基、吡啶环断裂和最终形成金属氧化物相对应的失重顺序。