zinc iodoporphyrin | 239105-95-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: zinc iodoporphyrin
• CAS: 239105-95-4
• 化学式: C₅₂H₅₉IN₄Zn
• 分子量: 932.362
• InChiKey: DROSPONYGQVKSS-JUWDKEIYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.53
• 重原子数：
  58.0
• 可旋转键数：
  6.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  53.98
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  zinc iodoporphyrin 、 [4-(1-(Triisopropylsilyl)ethynyl)bicyclo[2.2.2]oct-1-yl]-ethyne 在 catalyst: Pd₂dba3*CHCl₃ 、 As(C₆H₅)3 作用下， 以 甲苯 为溶剂， 以53%的产率得到4-[(triisopropylsilyl)ethynyl]-1-[[zinc(II)5-(3,5-di-tert-butylphenyl)-2,8,12,18-tetraethyl-3,7,13,17-tetramethyl-15-porphyrinyl]phenylethynyl]bicyclo[2.2.2]-octane
  参考文献：
  名称：

  Mediated Electronic Coupling:  Singlet Energy Transfer in Porphyrin Dimers Enhanced by the Bridging Chromophore

  摘要：

  We have studied singlet electronic energy transfer (EET) in two donor-bridge-acceptor series (D-B -A), in which the donor (zinc porphyrin or its pyridine complex) and the acceptor (free base porphyrin) were covalently connected by a geometrically well-defined bridging chromophore. We have investigated how the medium between a donor and an acceptor influences EET by separating the influence of the electronic structure of the bridging chromophore from other effects known to influence the energy transfer. The electronic structure of the bridging chromophore was varied by changing the central unit (bicyclo[2.2.2]octane, benzene, naphthalene, or anthracene) in the bridging chromophore. In all systems the excited state energy separation donor-bridge and bridge-acceptor is large enough to prevent stepwise singlet energy transfer. In addition, the systems were designed to minimize conjugation to preserve the identity of the separate chromophores (donor, bridge, acceptor). Compared with the rate constant expected from the Forster theory, the bridging chromophore with bicyclo[2.2.2]octane as the central unit did not significantly enhance the energy transfer rate constant. However, the bridging chromophores with benzene and naphthalene as the central unit showed a moderate increase, whereas the bridging chromophore with anthracene as the central unit showed the largest increase in energy transfer rate constant. This increase is ascribed to a mediating effect of the bridging chromophore and it is proposed to be strongly correlated to the energy splitting between the singlet excited states of donor and bridging chromophores.

  DOI：

  10.1021/jp9909098

文献信息

• Geometrically Homogenous Series of Covalently Linked Zinc/Free-Base Porphyrin Dimers of Varying Length; Design, Synthesis and Characterization
  作者：Thomas Ljungdahl、Karin Pettersson、Bo Albinsson、Jerker Mårtensson

  DOI：10.1002/ejoc.200600240

  日期：2006.7

  dependence, a new series of D-B-A systems were constructed. This series was based on the same zinc/free-base porphyrin couple as the donor-acceptor pair in the previous series. Their relative orientation was also retained. In contrast to our first series, the bridges in the latter were of varying length. The bridges were oligo(phenyleneethynylene)phenylene (OPE) structures and the length was systematically

  单线态激发能量转移 SEET 可以通过桥介导，通过超交换机制连接能量供体和受体。中介效率取决于供体和桥的第一激发态之间的能量差 DEDB 以及供体 - 受体距离 RDA。我们之前已经构建了一系列供体-桥-受体 DBA 系统，这些系统使我们能够研究 SEET 如何依赖于 DEDB。为了将这项研究扩展到第二个维度，即距离相关性，构建了一系列新的 DBA 系统。该系列基于与之前系列中的供体-受体对相同的锌/游离碱卟啉对。它们的相对方向也被保留了下来。与我们的第一个系列相比，后者中的琴桥长度各不相同。桥是低聚（亚苯基乙炔基）亚苯基（OPE）结构，并且长度通过增加no来系统地改变。1 到 4 的亚苯基乙炔单元。为了获得高质量的样品，DBA 系统通过构建块方法组装，其中锌和游离碱卟啉在 9 月引入。使用 Heck 炔基化。OPE 结构作为介体和支架的性能在单线态激发态能量和灵活性方面进行了讨论。第一次，当将局部
• Synthesis of Bis(phenylethynyl)arylene-Linked Diporphyrins Designed for Studies of Intramolecular Energy Transfer
  作者：Johan Kajanus

  DOI：10.1055/s-1999-3525

  日期：1999.7