Comparative Spectroscopic and Electrochemical Properties of Bis(octakis(dodecylthio)naphthalocyaninato)europium(III) and Bis(tetra<i>-tert-</i>butylnaphthalocyaninato)europium(III) Complexes
作者:Tebello Nyokong、Fumio Furuya、Nagao Kobayashi、Daming Du、Wei Liu、Jianzhuang Jiang
DOI:10.1021/ic990483b
日期:2000.1.1
Bis(substituted-2,3-naphthalocyaninato)europium(III) complexes: bis(octakis(dodecylthio)-2,3-naphthalocyaninato)europium(III) (Eu[2,3-Nc(SC12H25)8]2, 1) and bis(tetra-tert-butyl-2,3- naphthalocyaninato)europium(III) (Eu[2,3-Nc(t-Bu)4]2, 2) have been synthesized by cyclic tetramerization of naphthalonitriles with Eu(acac)3.H2O in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in refluxing
双(取代2,3-萘酞菁)eur(III)配合物:双(十二烷基(十二烷基硫基)-2,3-萘酞菁)((III)(Eu [2,3-Nc(SC12H25)8] 2,1)并通过与Eu(acac)的萘腈循环四聚反应合成了双(四叔丁基-2,3-萘基氰基氨基)eur(III)(Eu [2,3-Nc(t-Bu)4] 2,2)在回流的正辛醇中有1,8-二氮杂双环[5.4.0]十一碳-7-烯(DBU)存在下)3.H2O。这些化合物的特征是紫外可见,磁性圆二色性(MCD),近红外,红外,电子顺磁共振和质谱。1的吸收和MCD光谱显示Q波段分裂,在700和784 nm处出现峰,红色从2的Q波段在763 nm处偏移。配合物1的吸收和MCD谱带反褶积计算在Q波段区域给出了两个A项。A项分配给2A2-> 2E1转换。1和2的循环伏安图显示,与二茂铁/二茂铁(Fc + / Fc)相比,E1 / 2 = -0.28 V(对于2)和-0