Department of Chemistry, Marmara University, 34722, Istanbul, Turkey.
Dalton Trans. 2010 Sep 21;39(35):8143-52. doi: 10.1039/c0dt00398k. Epub 2010 Aug 6.
The mononuclear Fe(II) phthalocyanine 2 and ball-type homobinuclear Fe(II)-Fe(II) and Cu(II)-Cu(II) phthalocyanines, 3 and 4 respectively, were synthesized from the corresponding 4,4'-[1,1'-methylenebis-(naphthalene-2,1-diyl)]bis(oxy)diphthalonitrile 1, and then ball-type heterobinuclear Fe(II)-Cu(II) phthalocyanine 5 was synthesized from 2. The novel compounds 4 and 5 have been characterized by elemental analysis, UV/vis, IR and MALDI-TOF mass spectroscopies. Electron paramagnetic resonance and magnetic circular dichroism measurements of 3, 4 and 5 were also examined. The voltammetric measurements of the complexes showed the formation of various electrochemically stable ligand- and metal-based mixed-valence species, due to the intramolecular interactions between the two MPc units, especially in ball-type binuclear iron(II) phthalocyanine. Impedance spectroscopy and d.c. conductivity measurements of 4 and 5 were performed as a function of temperature (295-523 K) and frequency (40-10(5) Hz). While room temperature impedance spectra consist of a curved line, a transformation into a full semicircle with increasing temperature was observed for both compounds.
单核铁(II)酞菁 2 和球型同核铁(II)-铁(II)和铜(II)-铜(II)酞菁,分别为 3 和 4,是由相应的 4,4'-[1,1'-亚甲基双(萘-2,1-二基)]双(氧基)二邻苯二甲腈 1 合成的,然后由 2 合成了球型异核铁(II)-铜(II)酞菁 5。新化合物 4 和 5 通过元素分析、UV/vis、IR 和 MALDI-TOF 质谱进行了表征。还对 3、4 和 5 的电子顺磁共振和磁圆二色性测量进行了检查。配合物的伏安测量显示,由于两个 MPc 单元之间的分子内相互作用,形成了各种电化学稳定的配体和金属基混合价态物种,特别是在球型双核铁(II)酞菁中。作为温度(295-523 K)和频率(40-10(5) Hz)的函数,对 4 和 5 进行了阻抗谱和直流电导率测量。虽然室温阻抗谱由一条曲线组成,但随着温度的升高,两种化合物都转变为完整的半圆。