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。
Efficient green procedures for the preparation of novel tetraalkynyl-substituted phthalocyanines
摘要:
This work provides a successful, easy and efficient process for the preparation of metal-free 2(3),9(10),16(17),23(24)-octamethoxyphthalocyanine, [(OMe)(8)PcH2] (2), and its metal complexes [(OMe)(8)PcM] (3-11) (M = Zn, Cu, Ni, Mg, Co, Fe, Ru, TiCl and RhCl) by using green energy techniques such as exposure to UV-irradiation as well as microwave irradiation. Two different routes have been used, which involve modifications to that reported in the literature. The results suggest that these techniques drastically reduce the reaction time of metallophthalocyanine [(OMe)(8)PcM] (3-11) formation from 5-96 h to 5-11 min. The prepared octamethoxyphthalocyanines [OMe)(8)PcM] (2-4) (M Zn, Cu) are used as key materials to synthesize the corresponding novel tetraalkynyl-substituted phthalocyanines 15-17. (C) 2010 Elsevier Ltd. All rights reserved.
Two-dimensional conductive metal–organic frameworks with dual metal sites toward the electrochemical oxygen evolution reaction
作者:Jiawen Li、Peng Liu、Jianxin Mao、Jianyue Yan、Wenbo Song
DOI:10.1039/d0ta10870g
日期:——
Conductivemetal–organicframeworks (MOFs) are relevant as active materials for many applications, including electrocatalysis, chemiresistivesensing, and energy storage. However, the structure–activity relationship toward electrocatalysis in conductive MOFs needs to be further explored. Herein, a new strategy of electronic structure modification is proposed by introducing phthalocyanine with extra
Phthalocyanine covalent organicframeworks with different central metals are synthesized, and the AA-stacking structure of the 2D polymer sheets results in periodic phthalocyanine pi-columns. The central metalscontrol the pi-electronic functions, including the improvement of light absorbance, the ease of carrier transport, and the photocurrent gain.