Syntheses, Structural Characterization and Thermoanalysis of Transition-Metal Compounds Derived from 3,5-Dinitropyridone.
Syntheses, Structural Characterization and Thermoanalysis of Transition-Metal Compounds Derived from 3,5-Dinitropyridone.
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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。
DOI：
10.1007/s10870-009-9644-709
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发表时间：
2009
影响因子：
0.8
通讯作者：
Ng,SeikWeng
中科院分区：
文献类型：
--
作者：
Fan,Rong;Zhou,Qiu-Ping;Zhang,Guo-Fang;Cai,Mei-Yu;Li,Ping;Gan,Li-Hua;Zhao,Feng-Qi;Li,Ji-Zhen;Fan,Xue-Zhong;Ng,SeikWeng
摘要：通过元素分析对源自二硝基吡啶酮配体（3,5-二硝基吡啶-2-一，2HDNP；3,5-二硝基吡啶-4-一，4HDNP 和 3,5-二硝基吡啶-4-一-N-氢氧化物，4HDNPO）的 Mn(II)、Zn(II) 和 Cd(II) 九种金属化合物进行了表征。 FT-IR 和部分 TG-DSC。其中三个通过 X 射线单晶衍射分析进一步进行了结构表征。 Mn(4DNP)2(H2O)4,4、Zn(4DNPO)2(H2O)4,8 和 Cd(4DNPO)2(H2O)4,9 三种化合物的结构在单斜空间群 P2(1)/n 和 Z= 2 中结晶， 其中a= 8.9281(9),b= 9.1053(9),c= 10.6881(11) Å,β= 97.9840(10)° for4;a= 8.4154(7),b= 9.9806(8),c= 10.5695(8) Å,β= 97.3500(10)° 对于 8；a= 8.5072(7)，b= 10.2254(8)，c= 10.5075(8) Å，β= 96.6500(10)° 对于 9。所有三种配合物都是八面体，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π-π堆积相互作用似乎有助于化合物晶体结构的稳定。 TG-DTG结果表明，配合物呈现出与所有配位水分子、硝基、吡啶环断裂以及最终金属氧化物形成相对应的失重顺序。图解摘要合成了9种由3,5-二硝基吡啶酮衍生的Mn(II)、Zn(II)和Cd(II)过渡金属化合物，并对其中三种进行了X射线表征 单晶衍射分析。每个配合物都表现出扭曲的八面体几何形状，其中四个水分子位于赤道位置，两个配体分子位于轴向位置。丰富的氢键和π-π堆积相互作用似乎有助于化合物晶体结构的稳定。
AbstractNine metal compounds of Mn(II), Zn(II) and Cd(II) derived from dinitropyridone ligands (3,5-dinitropyrid-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(H2O)4,4, Zn(4DNPO)2(H2O)4,8, and Cd(4DNPO)2(H2O)4,9, crystallize in the monoclinic space group P2(1)/n andZ= 2, witha= 8.9281(9),b= 9.1053(9),c= 10.6881(11) Å,β= 97.9840(10)° for4;a= 8.4154(7),b= 9.9806(8),c= 10.5695(8) Å,β= 97.3500(10)° for8;a= 8.5072(7),b= 10.2254(8),c= 10.5075(8) Å,β= 96.6500(10)° for9. 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 π-π 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.Graphical AbstractNine transition-metal compounds of Mn(II), Zn(II) and Cd(II) derived from 3,5-dinitropyridone were synthesized and three were characterized by X-ray single-crystal diffraction analysis. Each of the complexes exhibits distorted octahedral geometry with four water molecules on the equatorial positions and two ligand molecules on the axial positions. The abundant hydrogen-bonding and π-π stacking interactions seem to contribute to stabilization of the crystal structures of the compounds.