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首页> 外文期刊>Journal of porphyrins and phthalocyanines >Tetra-2,3-pyrazinoporphyrazines with peripherally appended pyridine rings. 21. Mono- and pentanuclear Fe(II )complexes: Solid state and solution studies
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Tetra-2,3-pyrazinoporphyrazines with peripherally appended pyridine rings. 21. Mono- and pentanuclear Fe(II )complexes: Solid state and solution studies

机译：具有外周附加吡啶环的Tetra-2,3-吡嗪卟啉。 21.单核和五核Fe（II）复合物：固态和解决方案研究

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摘要

New Fe-II complexes of formula [Py(8)TPyzPzFe] center dot xH(2)O, its bis-pyridine adduct [Py(8)TPyzPzFe(py)(2)] center dot xH(2)O, the pentanuclear species [(MCl2)(4)Py(8)TPyzPzFe] center dot xH(2)O (M = Pd-II, Pt-II) and the bis-DABCO adducts [Py(8)TPyzPzFe(DABCO)(2)] center dot 11H(2)O and [(PdCl2)(4)Py(8)TPyzPzFe(DABCO)(2)] center dot H2O (Py(8)TPyzPz = octapyridino-tetrapyrazinoporphyrazinato dianion; DABCO = 1,4-diazabiciclo[2.2.2] octane) were synthesized and characterized by elemental and thermogravimetric analysis, IR and UV-vis spectroscopy, with added studies on the starting complex [Py(8)TPyzPzFe] center dot xH(2)O regarding magnetic and electrochemical behavior. Clathrated water molecules are present in all compounds and have little to no effect on their physicochemical behavior as was observed for all previously reported analogs. UV-vis spectra of the mononuclear [Py(8)PyzPzFe] center dot xH(2)O complex in DMSO and pyridine are indicative of aggregation inunediately after dissolving the compound. However, the spectra change slowly over time leading to formation of a porphyrazine species having spectral features typical of a monomer. UV-vis spectra of the parent pentanuclear [(MCl2)(4)Py(8)TPyzPzFe] center dot xH(2)O (M = Pd-II, Pt-II) complexes show a smaller degree of aggregation upon dissolution in DMSO or pyridine and the spectra of these solutions also change over time to those of a monomer. The presence of aggregation, spectral evolution with time and final species formed from the N-base adducts [Py(8)TPyzPzFe(DABCO)(2)] center dot 11H(2)O and [(PdCl2)(4)Py(8)TPyzPzFODABCO)(2)] center dot H2O are reported and discussed.
机译：公式[PY（8）TPYZPZFE]中心点XH（2）O，其双吡啶加合物[PY（8）TPYZPZFE（PY）（2）]中央点XH（2）O，五核物种[（MCL2）（4）PY（8）甘辛锌]中心点XH（2）O（M = PD-II，PT-II）和BIS-DABCO加合物[PY（8）TPYZPZFE（DABCO）（2） ]中心点11h（2）o和[（pdcl2）（4）py（8）py（8）tpyzpzfe（dabco）（2）]中心点H2O（py（8）Tpyzpz = octapyridino-tetrapyrozinoporphyrazinato Dianion; dabco = 1,4-diazabiclo通过元素和热重分析，IR和UV-Vis光谱合成辛烷值，其特征在于，IR和UV-Vis光谱，添加了关于磁性和电化学行为的起始复合物[PY（8）TPYZPZFE]中心点XH（2）O的研究。所有化合物中存在克切的水分子，并且对所有先前报告的类似物观察到的，对其物理化学行为几乎没有影响。在DMSO和吡啶中的单核[PY（8）pyzpzFE]中央点XH（2）O复合物的UV-Vis光谱在溶解化合物后，在溶解后造成聚集。然而，光谱随时间缓慢变化，导致形成具有单体典型的光谱特征的卟啉种。母体五核的UV-Vis光谱[（MCl2）（4）PY（8）PY（8）TPYZPZFE]中心点XH（2）O（M = PD-II，PT-II）复合物在DMSO中的溶解时显示出较小程度的聚集量或吡啶和这些溶液的光谱也随着时间的推移而变化为单体的时间。聚集的存在，随时间和最终物种的聚集，由N基础加合物[PY（8）TPYZPZFE（DABCO）]中心点11H（2）O和[（PDCL2）（4）PY（8 ）TPYZPZFODABCO）（2）]据报道并讨论了中心点H2O。

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