863982-72-3Relevant academic research and scientific papers
Preparation and reactivity of penta- And tetracoordinate platinum(II) hydride complexes with P(OEt)3 and PPh(OEt)2 phosphite ligandst
Albertin, Gabriele,Antoniutti, Stefano,Busato, Christian,Castro, Jesus,Garcia-Fontan, Soledad
, p. 2641 - 2649 (2007/10/03)
The pentacoordinate [PtH{P(OEt)3}4]BF4 (1) hydride complex was prepared by allowing the tetrakis(phosphite) Pt{P(OEt) 3}4 to react with HBF4·Et2O at -80°C. Depending on the nature of the acid used, however, the protonation of the related Pt{PPh(OEt)2}4 complex yielded the pentacoordinate [PtH{PPh(OEt)2}4]BF4 (3) or the tetracoordinate [PtH{PPh(OEt)2}3]Y (4) [Y = BF 4- (a), CF3SO3- (b), Cl- (c)] derivatives. Neutral PtHClP2 (7, 8) [P = P(OEt)3, PPh(OEt)2] hydride complexes were prepared by allowing PtCl2P2 to react with NaBH4 in CH 3CN. The tetrakis(phosphite) [Pt{P(OEt)3}4](BF 4)2 (2) derivative was also synthesised and then characterised spectroscopically and by an X-ray crystal structure determination. Reactivity with aryldiazonium cations of all the hydrides was investigated and found to proceed only with the PtHClP2 complex to yield the aryldiazene [PtCl(ArN=NH)P2]BF4 [P = PPh(OEt)2] derivative. The hydrazine [PtCl(NH2NH2){PPh(OEt) 2}2]BPh4 complex was also prepared by allowing PtHClP2 to react first with AgCF3SO3 and then with hydrazine. The Royal Society of Chemistry 2005.
