Infrared spectroscopic characteristics of mixed rare earth triple-decker complexes with phthalocyaninato and 5-(4-hydroxyphenyl)-10,15,20-tris(4-octyloxy)porphyrinato ligands.
Infrared spectroscopic characteristics of mixed rare earth triple-decker complexes with phthalocyaninato and 5-(4-hydroxyphenyl)-10,15,20-tris(4-octyloxy)porphyrinato ligands.
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含有酞菁和 5-(4-羟基苯基)-10,15,20-三(4-辛氧基)卟啉配体的混合稀土三层配合物的红外光谱特征。
DOI：
10.1016/j.saa.2012.11.058
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Fanli Lu
中科院分区：
文献类型：
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作者：
Wendong Wang;Guihong Bao;Yajun Mao;Fanli Lu
收集了9种混合稀土三层卟啉配合物M_2III [TO（OH）PP]（Pc）_2] [M=La ~（3+）Dy，Pm，Y和Ho ~（3+）Lu除外; H_2Por =5-（4-羟基苯基）-10，15，20-三（4-辛氧基苯基）卟啉，Pc=未取代酞菁]与三价稀土配合物的红外光谱数据。对于M2 III [TO（OH）PP]（Pc）2]，未取代的酞菁二价阴离子Pc 2 −的典型IR标记带是在1327- 1329 cm −1处的强带和在1370- 1383 cm −1附近的弱带。它们可以被分配到吡咯CC拉伸。在1376 cm − 1附近没有Pc 2 −的另一个标记红外带，表明Ce 2 III [TO（OH）PP]（Pc）2]的红外光谱中铈金属离子以III和IV之间的中间价态存在。这些混合三层配合物的红外光谱表明，吡咯伸缩、异吲哚呼吸和氮杂伸缩的频率随稀土离子尺寸的增大而降低，但随稀土离子尺寸的增大而沿着基本保持不变。这些事实表明，在这些混合的三层的π-π相互作用弱于那些在双层。
The infrared (IR) spectroscopic data for a series of nine mixed rare earth triple-deckers M2III[TO(OH)PP](Pc)2] [M=La⋯Dy, except Pm, Y and Ho⋯Lu; H2Por=5-(4-hydroxyphenyl)-10,15,20-tris(4-octyloxyphenyl)porphyrin, Pc=unsubstituted phthalocyanine] with tervalent rare earths have been collected. For M2III[TO(OH)PP](Pc)2], typical IR marker bands for the unsubstituted phthalocyanine dianion Pc2−are strong bands at 1327–1329cm−1, and a weak band around 1370–1383cm−1. They can be assigned to pyrrole CC stretchings. The absence of Pc2−another marker IR band around 1376cm−1demonstrates that the cerium metal ion in the IR spectrum of Ce2III[TO(OH)PP](Pc)2] exists as intermediate valence state between III and IV. The IR spectra of these mixed triple-decker complexes reveal that the frequencies of pyrrole stretching, isoindole breathing, and aza stretchings are decreased sensitive to the rare earth ionic size, and remain basically unchanged along with the lanthanide contraction. These facts indicate that the π–π interactions in these mixed triple-deckers are weaker than those in the double-deckers.
含有共轭二聚卟啉配体的混合酞菁-卟啉铕(III)三层夹心配合物
DOI：
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发表时间：
1999
期刊：
影响因子：
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作者：
P. ArnoldDennis;JiangJianzhuang
通讯作者：
JiangJianzhuang