Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 1034-39-5, C18H15Br2P. A document type is Article, introducing its new discovery., Recommanded Product: 1034-39-5
Melem- and melamine-derived iminophosphoranes
Iminophosphorane derivatives of s-triazine and tri-s-triazine, C 3N3(NPCl3)3 (1), [H 2C3N3NH2(NPPh3) 2]Br2 (2), [HC3N3NH 2(NPPh3)2]Br (3), C6N 7(NPCl3)3 (5), [HC6N 7(NPCl3)3]Cl (6) were obtained by the Kirsanov reaction of melamine (1-3) and melem (5 and 6) with halogenated phosphorus compounds. The products were characterized by FTIR and solution NMR spectroscopy as well as by single-crystal X-ray diffraction. Additionally, in order to investigate the electron density distribution in the s-triazine or s-heptazine systems combined with the phosphinimine group, and to understand the influence of protonation on the triazine and heptazine moieties, quantum chemical analyses of compounds 2, 3, 5 and 6 were performed. Furthermore, by reaction of 5 with phenol the compound C6N7(NP(OPh)3)3 (7) was obtained. Its potential application as a flame retardant was examined by the UL 94 flammability test.
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Reference£º
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate