Abstract

The reaction of osmium(II) tetra-15-crown-5-porphyrin (Os(II)TCP) with molecular iodine in high yield yielded the corresponding osmium(IV) porphyrin containing iodide ions in the axial positions of the osmium(IV) atom and possessing paramagnetic properties according to ¹H NMR. The iodine anions in the complex create an additional heavy atom effect in addition to such an effect from the osmium(IV) cation, which is of certain interest from the point of view of increasing the probability of phosphorescence transitions in osmium(IV) crown porphyrin molecules. The paramagnetism of osmium(IV) crown porphyrin also affects the probability of phosphorescence transitions, and this effect depends on temperature. These two effects (paramagnetism and the heavy atom effect) create some interest in terms of the possibility of creating a phosphorescent temperature sensor based on the new osmium(IV) crown porphyrin. A comparative analysis of the kinetics of phosphorescence decay of osmium(IV), osmium(VI) and osmium(II) porphyrins in the polystyrene matrix at temperatures of 298 and 77 K. It was found that the new osmium(IV) crown porphyrin has the highest phosphorescence lifetime with temperature in this series and can be considered as a luminescent temperature sensor for changes in phosphorescence lifetime.

中文翻译：

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聚苯乙烯中77℃和298 K温度下新型顺磁性magnetic（四）卟啉的磷光动力学

摘要

-15（II）四-15-冠-5-卟啉（Os（II）TCP）与分子碘的高收率反应产生了在the（IV）的轴向位置上含有碘离子的相应（IV）卟啉原子且具有根据^1的顺磁特性1 H NMR。除了from（IV）阳离子的作用外，络合物中的碘阴离子还会产生另外的重原子作用，从增加crown（IV）冠卟啉中磷光转变的可能性的角度来看，这具有一定的意义。分子。crown（IV）冠卟啉的顺磁性也会影响磷光转变的可能性，而这种影响取决于温度。这两种效应（顺磁性效应和重原子效应）引起了人们对基于新型of（IV）冠卟啉创建磷光温度传感器的兴趣。在298和77 K的温度下，聚苯乙烯基质中（IV），（VI）和（II）卟啉的磷光衰减动力学的比较分析。