Selenolates of Aluminum and Gallium. Synthesis and Molecular Structures of [Mes2Al(.mu.-SeMe)]2, [Ph2Ga(.mu.-SeMe)]2, and [Me2(PhSe)Al.cntdot.PPh3]

Kumar, Rajesh; Dick, David G.; Ghazi, Shahid U.; Taghiof, Majid; Heeg, Mary Jane; Oliver, John P.

doi:10.1021/om00004a013

Cited by 35 publications

(19 citation statements)

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“…doi:10.1016/j.jorganchem.2004. 10.057 under an argon atmosphere using standard Schlenk techniques. All solvent used (hexane, benzene, and toluene) were dried over benzophenone ketyl.…”

Section: General Remarksmentioning

confidence: 99%

“…Among these compounds aluminum alkoxides have been the most systematically and broadly examined (see for example [2]). Comparing to aluminum alkoxides the chemistry of thiolate derivatives is rather scant [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The structures of organoaluminum thiolates are diversified and the factors controlling them are not still definitely examined.…”

Section: Introductionmentioning

confidence: 99%

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Cyclopentadienylaluminum thiolates – synthesis and structure

Szumacher

Madura

Zachara

et al. 2005

Journal of Organometallic Chemistry

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“…doi:10.1016/j.jorganchem.2004. 10.057 under an argon atmosphere using standard Schlenk techniques. All solvent used (hexane, benzene, and toluene) were dried over benzophenone ketyl.…”

Section: General Remarksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cyclopentadienylaluminum thiolates – synthesis and structure

Szumacher

Madura

Zachara

et al. 2005

Journal of Organometallic Chemistry

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“…Die Selenverbindung [(Me 2 GaSePh) n ] ( 2 ) ist ebenfalls als Dimer in Lösung beschrieben,18 aber die Kristallstruktur bisher noch nicht aufgeklärt. Die wenigen strukturell charakterisierten Diorganogalliumselenolate sind die dimeren Verbindungen [(Ph 2 GaSeMe) 2 ] und [{(PhCH 2 ) 2 GaSe t Bu} 2 ] 21,22. Verbindung 2 wurde aus in situ hergestelltem HSePh und Me 3 Ga in CH 2 Cl 2 synthetisiert.…”

Section: Ergebnisse Und Diskussionunclassified

Strukturen der Dimethylerdmetallphenylchalkogenolate [(Me₂MEPh)_n] mit M = Ga, In, Tl und E = S, Se, Te

Kluge¹,

Gerber²,

Krautscheid³

2011

Zeitschrift anorg allge chemie

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The reaction of main group III trimethyls, Me 3 M, with phenylchalcogenols HEPh leads to dimethyl earthmetal phenylchalcogenolates [(Me 2 MEPh) n ] with M = Ga and E = S (1), Se (2), Te (3), M = In and E = S (4), Se (5), Te (6) and M = Tl and E = S (7), Se (8), Te (9). Alternatively, reaction between Me 3 M and Me 3 SiEPh with elimination of SiMe 4 is possible for E = Se, Te if a polar solvent is applied, in order to stabilize the initial adduct [Me 3 M-E(Ph)SiMe 3 ].Additionally, for M = Tl and E = S the dimeric adduct [{Me 2 TlSPh(TlMe 3 )} 2 ] (10) was isolated and structurally characterized. Single crystals and microcrystalline samples of compounds 1 to 9 were examined by X-ray crystallography and polymeric as well as

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“…[47] The shortening of the Al-P bond length by 0.6 pm in 1 compared to that in 2 can be explained by the additional inductive effect of the methyl group and the reduced Tolman cone angle (136 vs. 145°). [34,35] The Al-As distance in 3 of 252.83(4) pm is in the same range as that in (I/Cl) 3 Al-AsPh 3 (251.4, 251.9 pm).…”

mentioning

confidence: 98%

The Al(OR^F)₃/H₂O/Phosphane [R^F = C(CF₃)₃] System – Protonation of Phosphanes and Absolute Brønsted Acidity

et al. 2013

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The synthesis of the classical, neutral donor–acceptor adducts Ph2MeP–/Ph3P–/Ph3As–Al(ORF)3 and H2O–Al(ORF)3 [1, 2, 3, 4, ORF = OC(CF3)3] is reported. The intermediate H2O–Al(ORF)3 (4) was generated by substitution of PhF in PhF–Al(ORF)3 with H2O and was analyzed in a long‐term NMR study over 22 days. This Brønsted acidic system was used in orienting experiments to protonate phosphanes such as PMePh2, PPh3, PCy3, P(tBu)3, and PCy2[2,4,6‐(iPr)3C6H2]. Depending on the use of one or two equivalents of PhF–Al(ORF)3, the new weakly coordinating anions [(RFO)3Al(μ‐OH)Al(ORF)3]– or [HOAl(ORF)3]– were obtained. However, in dependence of the steric bulk of the phosphanes, stable and unreactive R3P–Al(ORF)3 adducts were also observed in the NMR experiments. The absolute acidity of the key H2O–Al(ORF)3 adduct was evaluated by the relaxed COSMO cluster‐continuum (rCCC, COSMO = conductor‐like screening model) model in fluorobenzene solution. For a 0.001 M solution of H2O–Al(ORF)3, the medium acidity resulted as –986 kJ mol–1 or a pHabs value of 173. Long‐term hydrolysis of H2O–Al(ORF)3 (4), probably to give HORF and HOAl(ORF)2 followed by trimerization, gave [HOAl(ORF)2]3 (10), which was identified by X‐ray diffraction.

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Selenolates of Aluminum and Gallium. Synthesis and Molecular Structures of [Mes2Al(.mu.-SeMe)]2, [Ph2Ga(.mu.-SeMe)]2, and [Me2(PhSe)Al.cntdot.PPh3]

Cited by 35 publications

References 1 publication

Cyclopentadienylaluminum thiolates – synthesis and structure

Cyclopentadienylaluminum thiolates – synthesis and structure

Strukturen der Dimethylerdmetallphenylchalkogenolate [(Me₂MEPh)_n] mit M = Ga, In, Tl und E = S, Se, Te

The Al(OR^F)₃/H₂O/Phosphane [R^F = C(CF₃)₃] System – Protonation of Phosphanes and Absolute Brønsted Acidity

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Selenolates of Aluminum and Gallium. Synthesis and Molecular Structures of [Mes2Al(.mu.-SeMe)]2, [Ph2Ga(.mu.-SeMe)]2, and [Me2(PhSe)Al.cntdot.PPh3]

Cited by 35 publications

References 1 publication

Cyclopentadienylaluminum thiolates – synthesis and structure

Cyclopentadienylaluminum thiolates – synthesis and structure

Strukturen der Dimethylerdmetallphenylchalkogenolate [(Me2MEPh)n] mit M = Ga, In, Tl und E = S, Se, Te

The Al(ORF)3/H2O/Phosphane [RF = C(CF3)3] System – Protonation of Phosphanes and Absolute Brønsted Acidity

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Strukturen der Dimethylerdmetallphenylchalkogenolate [(Me₂MEPh)_n] mit M = Ga, In, Tl und E = S, Se, Te

The Al(OR^F)₃/H₂O/Phosphane [R^F = C(CF₃)₃] System – Protonation of Phosphanes and Absolute Brønsted Acidity