Antiferromagnetic coupling in copper(II)porphyrin dimers linked by copper(II) or palladium(II) ion

被引：6
作者：
Carvalho, Mary-Ambre [1 ]
Dekkiche, Herve [1 ]
Richeter, Sebastien [2 ]
Bailly, Corinne [1 ]
Karmazin, Lydia [1 ]
McKearney, Declan [3 ]
Leznoff, Daniel B. [3 ]
Rogez, Guillaume [4 ]
Vileno, Bertrand [1 ]
Choua, Sylvie [1 ]
Ruppert, Romain [1 ]
机构：
[1] Univ Strasbourg, UMR 7177, CNRS, Inst Chim, 1 Rue Blaise Pascal, F-67000 Strasbourg, France
[2] UMR5253 CNRS ENSCM UM, Inst Charles Gerhardt, Pl Eugene Bataillon,CC1701, F-34095 Montpellier, France
[3] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada
[4] Inst Phys & Chim Mat Strasbourg DCMI, 23 Rue Loess, F-67034 Strasbourg, France
来源：
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES | 2020年 / 24卷 / 1-3期
基金：
加拿大自然科学与工程研究理事会;
关键词：
porphyrinoids; copper(II)porphyrin; porphyrin dimers; magnetic interactions; antiferromagnetic coupling; MAGNETIC-PROPERTIES; BINUCLEAR PHTHALOCYANINE; MOLECULAR SCAFFOLDS; ENERGY-TRANSFER; PORPHYRAZINES; COMPLEXES; LIGANDS;
D O I：
10.1142/S1088424619501037
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The synthesis of porphyrin dimers linked by metal ions is described and the X-ray structure of two new dimers is presented. As previously shown for diamagnetic metal ions, strong electronic interactions between the individual subunits were observed. Antiferromagnetic coupling between copper(II)porphyrins linked by palladium(II) or copper(II) ions was studied by EPR and SQUID measurements. For the palladium(II)-linked dimer, the very small antiferromagnetic coupling was estimated by EPR measurements (J < -1 cm(-1)). For the trinuclear-copper(II)-linked dimer, a large antiferromagnetic coupling between the copper(II) ions was measured. In this trinuclear compound, the linking copper(II) ion is used as a relay to increase the interaction between the two copper(II)porphyrins.
引用
收藏
页码：238 / 246
页数：9
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