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Sarazin, Yann, Coles, Simon J., Hughes, David L., Hursthouse, Michael B. and Bochmann, Manfred 
ORCID: https://orcid.org/0000-0001-7736-5428
(2006)
Cationic Brønsted acids for the preparation of SnIV salts: Synthesis and characterisation of [Ph3Sn(OEt2)][H2N{B(C6F5)3}2],[Sn(NMe2)3(HNMe2)2][B(C6F5)4] and [Me3Sn(HNMe2)2][B(C6F5)4].
European Journal of Inorganic Chemistry, 2006 (16).
pp. 3211-3220.
ISSN 1434-1948
Abstract
Ph3SnN(SiMe3)2 ( 1 ) was prepared in good yields by reaction of [{NaN(SiMe3)2}2 · THF] ( 2 ) with Ph3SnF. Treatment of 1 with [H(OEt2)2][H2N{B(C6F5)3}2] ( 4 ) in dichloromethane afforded the stannylium cation [Ph3Sn(OEt2)][H2N{B(C6F5)3}2] ( 5 ), which was characterised by 1H, 13C{1H}, 11B, 19F and 119Sn NMR spectroscopy. The reaction of Sn(NMe2)4 with [Ph2MeNH][B(C6F5)4] ( 3 ) gave the amidotin(IV) compound [Sn(NMe2)3(HNMe2)2][B(C6F5)4] ( 6 ) which proved very stable towards ligand substitution and resisted treatment with Et2O, THF, TMEDA and pyrazine. Two new Brønsted acid salts [H(NMe2H)2][B(C6F5)4] ( 7 ) and [(C4H4N2)H · OEt2][H2N{B(C6F5)3}2] ( 8 ) were synthesised. The reaction of 7 with Sn(NMe2)4 in Et2O allowed the preparation of 6 in a much improved yield (83?%). The treatment of 7 with Me3SnN(SiMe3)2 in Et2O yielded [Me3Sn(HNMe2)2][B(C6F5)4] ( 9 ) nearly quantitatively. Compounds 1 , 2 , 6 , 8 and 9 were characterised by single-crystal X-ray diffraction analyses; 6 is the first example of a structurally characterised amidotin(IV)cation.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Chemistry |
| UEA Research Groups: | Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017) |
| Depositing User: | Rachel Smith |
| Date Deposited: | 02 Nov 2010 17:48 |
| Last Modified: | 09 Jan 2024 01:23 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/10530 |
| DOI: | 10.1002/ejic.200600397 |
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