Department of Chemistry, Yüzüncü Yıl University, 65080, Van, Turkey.
Dalton Trans. 2011 Apr 7;40(13):3315-24. doi: 10.1039/c0dt01575j. Epub 2011 Feb 18.
The new mono-nuclear 4-5 and ball-type homo-dinuclear 6 phthalocyanines have been synthesized from the corresponding phthalodinitrile derivative 3. The synthesized compounds have been characterized by elemental analysis, UV-vis, IR,(1)H-NMR and MALDI-TOF-mass spectroscopies. The redox behaviours of the complexes were identified by cyclic voltammetry and square wave voltammetry. The temperature dependence of the electronic properties of compounds and adsorption of SO(2) on thin film of 6 were investigated by conductivity measurements using an interdigital transducer structure on glass substrate. Dc conductivity, measured between 300-475 K, is thermally activated with the activation energy ranging between 0.67 and 0.90 eV. The ac conductivity is found to vary with frequency, ω, as ω(s) in which the frequency exponent s decreases with temperature suggesting a hopping conduction mechanism for all compounds. The SO(2) sensing result showed that the spin coated film of 6 exhibits very good SO(2) sensing properties, fast response and recovery rate, high sensitivity and good repeatability.
新型单核 4-5 和同核双核 6 酞菁已由相应的苯二腈衍生物 3 合成。通过元素分析、紫外可见光谱、红外光谱、(1)H-NMR 和 MALDI-TOF 质谱对合成的化合物进行了表征。通过循环伏安法和方波伏安法确定了配合物的氧化还原行为。通过在玻璃衬底上的叉指换能器结构进行电导测量,研究了化合物的电子性质和 6 薄膜对 SO(2)的吸附的温度依赖性。在 300-475 K 之间测量的直流电导率是热激活的,激活能在 0.67 到 0.90 eV 之间。交流电导率随频率 ω 变化,ω(s),其中频率指数 s 随温度降低,表明所有化合物都存在跳跃传导机制。SO(2)传感结果表明,旋涂的 6 薄膜表现出非常好的 SO(2)传感性能,响应和恢复速率快,灵敏度高,重复性好。