Reactions of N-(N′,N′,N″,N″-tetramethyl)guanidinyl-substituted Phosphines with Organoelement Chlorides involving Phosphorus, Sulfur, and Selenium; Formation of Stable Phosphino-, Thio-, and Selenophosphonium Salts
✍ Scribed by J. Münchenberg; O. Böge; H. Thönnessen; P. G. Jones; R. Schmutzler
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- German
- Weight
- 127 KB
- Volume
- 624
- Category
- Article
- ISSN
- 0372-7874
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✦ Synopsis
By reaction of N-(N',N',N@,N@-tetramethyl)guanidinyl-substituted phosphines with diorganochlorophosphines, organodichlorophosphines, p-tolylsulfenylchloride and phenylselenylchloride a variety of stable phosphonium chlorides with a P±E (E = P, S, Se) bond were obtained. In one case, performing this reaction in the presence of sodium tetraphenylborate led to the corresponding phosphonium tetraphenylborate. All compounds were characterised by multinuclear NMR and elemental analysis. The selenophosphonium chloride 4 a of the trihydrate was further characterised by a single crystal X-ray analysis. The P±Se bond is very long [193.0(3), 193.3(3) pm in two independent fomula units]. The water molecules and the chloride anions form hydrogen bonded layers.