Kürkçüoğlu Güneş Süheyla, Kiraz Fulya Çetinkaya, Sayın Elvan
Eskişehir Osmangazi University, Faculty of Arts and Sciences, Department of Physics, TR-26480 Eskişehir, Turkey.
Ataşehir Adıgüzel Vocational School, Department of Optician, TR-34779 İstanbul, Turkey.
Spectrochim Acta A Mol Biomol Spectrosc. 2015 Oct 5;149:8-16. doi: 10.1016/j.saa.2015.04.019. Epub 2015 Apr 17.
The heteronuclear tetracyanonickelate(II) complexes of the type [M(etim)Ni(CN)4]n (hereafter, abbreviated as M-Ni-etim, M=Mn(II), Fe(II) or Co(II); etim=1-ethylimidazole, C5H8N2) were prepared in powder form and characterized by FT-IR and Raman spectroscopy, powder X-ray diffraction (PXRD), thermal (TG; DTG and DTA), and elemental analysis techniques. The structures of these complexes were elucidated using vibrational spectra and powder X-ray diffraction patterns with the peak assignment to provide a better understanding of the structures. It is shown that the spectra are consistent with a proposed crystal structure for these compounds derived from powder X-ray diffraction measurements. Vibrational spectra of the complexes were presented and discussed with respect to the internal modes of both the etim and the cyanide ligands. The C, H and N analyses were carried out for all the complexes. Thermal behaviors of these complexes were followed using TG, DTG and DTA curves in the temperature range 30-700 °C in the static air atmosphere. The FT-IR, Raman spectra, thermal and powder X-ray analyses revealed no significant differences between the single crystal and powder forms. Additionally, electrical and magnetic properties of the complexes were investigated. The FT-IR and Raman spectroscopy, PXRD, thermal and elemental analyses results propose that these complexes are similar in structure to the Hofmann-type complexes.
制备了[M(etim)Ni(CN)₄]ₙ型（以下简称为M-Ni-etim，M = Mn(II)、Fe(II)或Co(II)；etim = 1-乙基咪唑，C₅H₈N₂）的异核四氰基镍(II)配合物粉末，并通过傅里叶变换红外光谱（FT-IR）、拉曼光谱、粉末X射线衍射（PXRD）、热分析（TG、DTG和DTA）以及元素分析技术对其进行了表征。利用振动光谱和粉末X射线衍射图谱并进行峰归属来阐明这些配合物的结构，以便更好地理解其结构。结果表明，光谱与通过粉末X射线衍射测量得出的这些化合物的晶体结构模型一致。给出了配合物的振动光谱，并针对etim和氰化物配体的内模进行了讨论。对所有配合物进行了C、H和N分析。在静态空气气氛中，使用TG、DTG和DTA曲线跟踪这些配合物在温度范围30 - 700 °C内的热行为。FT-IR、拉曼光谱、热分析和粉末X射线分析表明单晶和粉末形式之间没有显著差异。此外，还研究了配合物的电学和磁学性质。FT-IR和拉曼光谱、PXRD、热分析和元素分析结果表明，这些配合物在结构上与霍夫曼型配合物相似。
