Synthesis, spectroscopic and fluorescence properties of N,N′-diethylnicotinamide adducts of 2-bromobenzoate Co(II) and Ni(II) metal-organic complexes

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• 作者：Fü ; reya Elif Ö ; zbek^a ; ^{fozturkkan36@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; ^{elif@kafkas.edu.tr" class="auth_mail" title="E-mail the corresponding author} ; Mustafa Yü ; ksek^b ; ^{mustafa_yuksek2001@yahoo.com" class="auth_mail" title="E-mail the corresponding author} ; Hacali Necefoğlu^c ; ^{alinecef@hotmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Co(II) ; Ni(II) ; Bromobenzoates ; Absorption ; Fluorescence
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：127
• 期：19
• 页码：7710-7716
• 全文大小：1343 K

文摘

Two mixed complexes diaquabis(2-bromobenzoato-κO)bis-(N,N-diethylnicotinamide-κN')cobalt(II) [Co(C₇H₄BrO₂)₂(C₁₀H₁₄N₂O)(H₂O)₂] (Complex I) and diaquabis(2-bromobenzoato-κO)bis-(N,N-diethylnicotinamide-κN')nickel(II) [Ni(C₇H₄BrO₂)₂(C₁₀H₁₄N₂O)(H₂O)₂] (Complex II) have been synthesized and characterized by elemental analysis, TG/DTA, FT-IR spectra and X-ray powder diffraction(XRPD). In addition, the optical absorption and emission properties of metal-organic complexes were investigated by using UV–vis absorption and fluorescence spectrophotometers, respectively. Complex I showed larger absorption and emission intensities than complex II in the visible region. This behavior was attributed to the numbers of π → π^* transitions which are take place in the visible region.