Intramolecular photoexcitation dynamics and magnetic field effects in an intermediate-case molecule

Ohta, Nobuhiro

doi:10.1016/s1389-5567(00)00012-5

Journal of Photochemistry and Photobiology C: Photochemistry Re

2000

DOI: 10.1016/s1389-5567(00)00012-5

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Intramolecular photoexcitation dynamics and magnetic field effects in an intermediate-case molecule

Nobuhiro Ohta

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2010

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Melem- and melamine-derived iminophosphoranes

et al. 2010

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Iminophosphorane derivatives of s-triazine and tri-s-triazine, C 3 N 3 (NQPCl 3 ) 3 (1), [H 2 C 3 N 3 NH 2 (NQPPh 3 ) 2 ]Br 2 (2), [HC 3 N 3 NH 2 (NQPPh 3 ) 2 ]Br (3), C 6 N 7 (NQPCl 3 ) 3 ( 5), [HC 6 N 7 (NQPCl 3 ) 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 C 6 N 7 (NQP(OPh) 3 ) 3 ( 7) was obtained. Its potential application as a flame retardant was examined by the UL 94 flammability test.Scheme 1 s-Triazine and s-heptazine structural motifs and some of their derivatives.Scheme 2 General structure of the iminophosphoranes.

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Melem- and melamine-derived iminophosphoranes

et al. 2010

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Intramolecular photoexcitation dynamics and magnetic field effects in an intermediate-case molecule

Cited by 1 publication

References 72 publications

Melem- and melamine-derived iminophosphoranes

Melem- and melamine-derived iminophosphoranes

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