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Titolo:
Synthesis, structure, and electronic properties of monomeric and dimeric trispyrazolylborate platinum(II) hydride complexes
Autore:
Reinartz, S; Baik, MH; White, PS; Brookhart, M; Templeton, JL;
Indirizzi:
Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA Univ N Carolina Chapel Hill NC USA 27599 Chem, Chapel Hill, NC 27599 USA
Titolo Testata:
INORGANIC CHEMISTRY
fascicolo: 18, volume: 40, anno: 2001,
pagine: 4726 - 4732
SICI:
0020-1669(20010827)40:18<4726:SSAEPO>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
DENSITY-FUNCTIONAL THEORY; FIRST (MU-HYDRIDO)DIPLATINUM(IV) COMPLEX; CATALYTIC REDUCTIVE ELIMINATION; A-FRAME COMPLEXES; METAL-METAL BOND; METHYL(HYDRIDO)PLATINUM(IV) COMPLEXES; REVERSIBLE FORMATION; MOLECULAR-STRUCTURE; TETRAMETHYLPLATINUM(IV) COMPLEX; TRIHYDRIDE COMPLEXES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
90
Recensione:
Indirizzi per estratti:
Indirizzo: Brookhart, M Univ N Carolina, Dept Chem, CB 3290, Chapel Hill, NC 27599 USA Univ N Carolina CB 3290 Chapel Hill NC USA 27599 NC 27599 USA
Citazione:
S. Reinartz et al., "Synthesis, structure, and electronic properties of monomeric and dimeric trispyrazolylborate platinum(II) hydride complexes", INORG CHEM, 40(18), 2001, pp. 4726-4732

Abstract

Tp ' PtMe(H)(2) (2) [Tp ' = hydridotris(3,5-dimethylpyrazolyl)borate] has been prepared from Tp ' PtMe(CO) (1) via reaction with water in a basic acetone/water mixture. Protonation of 2 at one of the pyrazole nitrogen atoms induces methane elimination, and the resulting platinum(H) monohydride solvent intermediate (3) can be trapped by added ligand. Two chiral cationic platinum(II) monohydride complexes of the type [k(2)-((Hpz*)BHpz*(2),)Pt-(H)(L)][BAr ' (4)] [L = MeCN (4), CH2=CH2 (5); pz* = 3,5-dimethylpyrazolyl, BAr'4 = tetrakis(3,5-trifuoromethylphenyl)borate] have been isolated. If 2 isprotonated in the absence of trapping ligand, a deep red hydride-bridged dinuclear complex, [k(2)-((Hpz*)BHpz*(2))Pt(Li-H)](2)[BAr ' (4)](2) (6), forms. DFT calculations supplement intuitive expectations regarding 3-center-2-electron bridging orbital descriptions for the electronic structure of this complex. X-ray structure determinations for the monomeric acetonitrile adduct 4 and the dicationic dimer 6 are reported.

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Documento generato il 08/07/20 alle ore 08:10:33