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Syntheses, dynamic stereochemistry, and unusual reactivity of intramolecularly coordinated organotin fluorides

par Pieper, Nicole;Ludwig, Ralf;Jurkschat, Klaus;Biesemans, Monique;Verbruggen, Ingrid;Willem, Rudolph
Référence Phosphorus, sulfur, and silicon and the related elements, 150-151, page (305-310)
Publication Publié, 1999

Article révisé par les pairs

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Résumé :

The addition of Bu4NF•3H2O to a solution of intramolecularly hexacoordinated (Me2N(CH2)3]2SnF2 (1) in CH2Cl2 gives the zwitterionic species [Me2(ClCH2)N+(CH2)3][Me2N(CH2)3]SnF3- (2) and [Me2(ClCH2)N+(CH2)3] 2SnF42-(3). On the other hand, (CH2(Me)N(CH2)3]2SnF2 (4) does not react with fluoride ions. Density functional calculations on the model compound (H2N(CH2)3]2SnF2 (1') show the LUMO of its cis isomer to be lower in energy than that of its trans isomer. Also reported are the synthesis and structure of the intramolecularly P(O)-coordinated organotin fluoride (C6H4CH2P(O)Ph2I2SnF2 (5).