81566-83-8Relevant academic research and scientific papers
Multiply biphenyl substituted zinc(II) porphyrin and phthalocyanine as components for molecular materials
Penon, Oriol,Marsico, Filippo,Santucci, Davide,Rodríguez, Laura,Amabilino, David B.,Pérez-García, Llu?sa
, p. 1293 - 1302 (2012)
The preparation and physico-chemical characteristics of zinc(II) porphyrin and phthalocyanine derivatives with biphenyl units are reported. These compounds have been prepared as components for molecular electronics systems and rotor-based molecular machin
Hierarchically porous covalent organic frameworks assembled in ionic liquids for highly effective catalysis of C-C coupling reactions
Gao, Hongshuai,Guan, Pengxin,Li, Zhiyong,Qiu, Jikuan,Wang, Huiyong,Wang, Jianji,Zhang, Hucheng,Zhang, Suojiang,Zhao, Yuling
supporting information, p. 2605 - 2612 (2020/05/14)
Although significant progress has been made in the synthesis of covalent organic frameworks (COFs) in recent years, the construction of hierarchical pores in such materials remains a great challenge. Herein, we report a facile synthesis of hierarchically porous COFs (HP-COFs) under mild conditions in ionic liquids 1-alkyl-3-methylimidazolium tetrafluoroborates ([Cnmim][BF4], n = 4, 6, 10). It has been found that apart from the inherent micropores, a large mesoporous structure has been produced in the COFs in which the size of pores can be simply tuned by adjusting the alkyl chain length of the ionic liquids. These mesopores have been confirmed by N2 sorption and electron microscopy techniques. Importantly, this approach is applicable for the preparation of various HP-COFs, such as imine and hydrazone based COFs, which are quite difficult to acquire through traditional methods. In addition, these HP-COFs show highly effective catalytic performance for C-C bond formation, especially for large size molecule based C-C coupling reactions in comparison with uni-pore COFs.
Syntheses and CO2 reduction activities of π-expanded/extended iron porphyrin complexes
Okabe, Yuki,Lee, Sze Koon,Kondo, Mio,Masaoka, Shigeyuki
, p. 713 - 725 (2017/06/27)
The construction of molecular catalysts that are active toward CO2 reduction is of great significance for designing sustainable energy conversion systems. In this study, we aimed to develop catalysts for CO2 reduction by introducing
Improved syntheses of 5,10,15,20-tetrakisaryl- and tetrakisalkylporphyrins
Johnstone, Robert A.W.,Nunes, M. Luisa P.G.,Pereira, Mariette M.,D'A Rocha Gonsalves, Antonio M.,Serra, Arménio C.
, p. 1423 - 1437 (2007/10/03)
Three significant modifications to existing methods for the preparation of the important 5,10,15,20-tetrakisarylporphyrins have improved isolated yields, simplified work-up and made large-scale synthesis feasible. Two tetrakisalkylporphyrins were also produced. A two-stage approach using hydrogen peroxide in acetic acid as second stage oxidant gave good yields but for ease of isolation and convenience in working on a large scale, the one-pot approach is preferred. No one method appears to be suitable for all such tetrakisarylporphyrins and, for best yields, the method of preparation needs to be chosen carefully. Application of statistical optimisation techniques (factorial two design and simplex operation) led to considerably enhanced yields for the one-pot method. For one of the two-stage modifications, significant amounts of chlorins were observed, sometimes of such magnitude as to make it suitable as a method for their preparation.
