The combined use of porphyrins and fluorides to fabricate pillared coordination sheets is presented. Multiple features, such as coordinatively unsaturated metal sites, an optimal pore space, and a fluoride-decorated internal surface, make the new materials ideal adsorbents with high capacity and affinity for carbon dioxide. In addition, the new materials are shown to be suitable single-source precursors
Preparation and characterization of poly(siloxane)-supported metalloporphyrins: the effect of the support on the electronic absorption spectra
作者:H.S. Hilal、M.L. Sito、A.F. Schreiner
DOI:10.1016/s0020-1693(00)80181-4
日期:1991.11
halogenated poly(siloxane) surfaces [9a] Sil-(CH&X, as supports for the metalloporphyrin catalyst, [Mn”‘(TPyP)]. Quatemization reactions have been used to bind the [Mn’n(TPyP)] species to the surface [9b]. We now report our studies of the effect of support on the electronic absorption spectra of several supported metalloporphyrins [M(TPyP)].
Synthesis, Characterisation and Magnetic Behaviour of Ionic Metalloporphyrins: Metal–Tetrakis(N-Octyl-4-Pyridinium)–Porphyrins with Tetrabromoferrate(III) Anions
A series of magnetic, ionic-substituted tetrapyridyl metalloporphyrins, [tetrakis(N-octyl-4-pyridinium)–metal–porphy-rin][tetrabromoferrate(III)]4 (metal=iron, cobalt, manganese, copper or zinc), have been synthesised. All compounds show weak ferromagnetic behaviour at room temperature and respond to an external neodymium magnet.
Coordination bonding has been employed for the first time to control molecular orientation in thinfilms and is demonstrated by using tetrapyridylporphyrin. Changing the central metal ion of porphyrin controls the balance of the coordination bonding and hydrogen bonding, and edge-on orientation has been realized for the first time as well as face-on orientation. The mechanism of the film structure formation