我们报告了一系列通过亲核芳香取代(S构成健壮二恶英键连接高度稳定的基于金属酞菁共价有机骨架(MPC-DX-COF的)的Ñ AR)反应。即使在用沸水(90°C),浓酸(12 mol / L HCl)或碱(12 mol / L NaOH)处理,氧化(30%H 2 O 2)处理后,COF的化学结构和结晶度也基本保持不变。)或还原剂(1 mol / L NaBH 4),因为它们具有稳定的M-Pc构建基块和有弹性的二恶英连接子,因此可以使用三天。通过将金属化的酞菁活性位点规则排列在稳定的骨架结构中,MPc-dx-COFs可以直接用作氧还原反应(ORR)的有效电催化剂,而无需进行以往研究中普遍采用的热解处理。
Hierarchical Tuning of the Performance of Electrochemical Carbon Dioxide Reduction Using Conductive Two-Dimensional Metallophthalocyanine Based Metal–Organic Frameworks
作者:Zheng Meng、Jianmin Luo、Weiyang Li、Katherine A. Mirica
DOI:10.1021/jacs.0c07041
日期:2020.12.30
conductivities. This work demonstrates the use of four systematic structural analogs of conductive two-dimensional (2D) metal-organicframeworks (MOFs) made of metallophthalocyanine (MPc) ligands linked by Cu nodes with electrical conductivities of 2.73 × 10-3 to 1.04 × 10-1 S cm-1 for the electrochemical reduction of CO2 to CO. The catalytic performance of the MOFs, including the activity and selectivity
在将二氧化碳电化学还原为增值产品中使用网状材料有可能通过以原子精度调节骨架材料的化学和结构特征来实现对催化性能的可调控制。然而,此类系统的可调功能性能仍然受到其不良导电性的极大阻碍。这项工作展示了导电二维 (2D) 金属有机框架 (MOF) 的四种系统结构类似物的使用,这些结构类似物由金属酞菁 (MPc) 配体制成,由铜节点连接,电导率为 2.73 × 10-3 至 1.04 × 10- 1 S cm-1 用于将 CO2 电化学还原为 CO。 MOF 的催化性能,包括活性和选择性,发现由两个重要的结构因素分级控制:MPc(M = Co vs Ni)催化亚基中的金属和这些亚基之间杂原子交联剂的特性(X = O vs NH)。活性和选择性取决于 MPcs 中金属的选择,并进一步受杂原子键的调节。在这些 MOF 中,CoPc-Cu-O 对 CO 产物表现出最高的选择性(法拉第效率 FECO = 85%),具有高达
Complementary Syntheses Giving Access to a Full Suite of Differentially Substituted Phthalocyanine‐Porphyrin Hybrids
作者:Faeza Alkorbi、Alejandro Díaz‐Moscoso、Jacob Gretton、Isabelle Chambrier、Graham J. Tizzard、Simon J. Coles、David L. Hughes、Andrew N. Cammidge
DOI:10.1002/anie.202016596
日期:2021.3.29
properties. The selective synthesis of unsymmetrical systems, particularly phthalocyanines, has remained a significant unmet challenge. Porphyrin‐phthalocyanine hybrids offer the potential to combine the favorable features of both parent structures, but again synthetic strategies are poorly developed. Here we demonstrate strategies that give straightforward, controlled access to differentially substituted
METAL COMPLEX DYE, PHOTOELECTRIC CONVERSION ELEMENT AND DYE-SENSITIZED SOLAR CELL
申请人:Fujifilm Corporation
公开号:US20130087203A1
公开(公告)日:2013-04-11
A metal complex dye, containing a ligand LL1 having a structure represented by Formula (I):
wherein R
1
and R
2
represent a specific substituent; L
1
and L
2
represent a group composed of at least one kind of group selected from the group consisting of an ethenylene group, an ethynylene group and an arylene group, and conjugate with R
1
or R
2
, and the bipyridine; the ethenylene group and the arylene group may be substituted or unsubstituted; R
3
and R
4
represent a substituent; n1 and n2 represent an integer of 0 to 3; A
1
and A
2
represent an acidic group or a salt thereof; and n3 and n4 represent an integer of 0 to 3.
Synthesis of Phthalonitriles
Using a Palladium Catalyst
作者:Michael Hanack、Zafar Iqbal、Alexey Lyubimtsev
DOI:10.1055/s-2008-1078269
日期:——
An easy synthetic method to obtain phthalonitriles from o-dibromobenzenes under mild conditions in high yields using Zn(CN)2 and a catalytic amount of tris(dibenzylideneacetone)dipalladium and 1,1′-bis(diphenylphosphino)ferrocene is described.
Palladium(II) octaalkoxy- and octaphenoxyphthalocyanines: Synthesis and evaluation as catalysts in the Sonogashira reaction
作者:Yana B. Platonova、Alexander N. Volov、Larisa G. Tomilova
DOI:10.1016/j.jcat.2019.04.003
日期:2019.5
octaphenoxysubstituted palladium phthalocyanines were used as a new family members of cross-coupling catalysts in the Sonogashirareaction. For the first time it was shown that terminal alkynes reacted mildly with p-substituted aryl bromides in gently conditions at room temperature under Pd and Cu-cocatalysis to give the corresponding phenylacetylenes. This protocol represents the use of palladium phthalocyanines