Schwingungsspektren und normalkoordinatenanalyse von (CF3)2EXCH3-verbindungen (E  P, As; X  S, Se)

Dehnert, P.; Demuth, Reinhard; Grobe, J.

doi:10.1016/0584-8539(80)80052-3

Cited by 5 publications

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“…The analysis of the vibrational spectra, based on earlier assignments, 23 locates the symmetric ν(Hg-P(CF 3 ) 2 ) stretching mode of the complex [Hg{P(CF 3 ) 2 } 2 (dppe)] at 189 cm -1 (see Table 3). The stronger donor Me 3 P in [Hg{P(CF 3 ) 2 } 2 (Me 3 P) 2 ] causes the v(Hg-P(CF 3 ) 2 ) mode to decrease by 13 cm -1 .…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and Properties of Mercury Bis(trifluoromethyl)phosphanides and Their Phosphane Complexes

2001

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The thermally unstable compounds Hg(CN)P(CF(3))(2) and Hg[P(CF(3))(2)](2) were obtained by reactions of mercury cyanide and bis(trifluoromethyl)phosphane in solution and characterized by multinuclear NMR spectroscopy. An increase in thermal stability is observed when the products form 18 valence electron complexes. The compounds [Hg(P(CF(3))(2))(2)(dppe)] (dppe = 1,2-bis(diphenylphosphanyl)ethane) and [Hg(P(CF(3))(2))(2)(Me(3)P)(2)] have been isolated in almost quantitative yield by reacting [Hg(CN)(2)(dppe)] or [Hg(CN)(2)(Me(3)P)(2)] with HP(CF(3))(2). [Hg(P(CF(3))(2))(2)(dppe)] crystallizes in the triclinic space group P1. The mercury atom is coordinated in a distorted tetrahedral fashion. The Hg-P(CF(3))(2) bonds, ca. 250 pm, are significantly longer than those of the mercury bis(phosphanides) Hg(PR(2))(2) with R = t-Bu, 245 pm, or SiMe(3), 241 pm. These easily accessible compounds [Hg(P(CF(3))(2))(2)(dppe)] and [Hg(P(CF(3))(2))(2)(Me(3)P)(2)] act as nucleophilic bis(trifluoromethyl)phosphane group transfer reagents.

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Section: Resultsmentioning

confidence: 99%

“…Solvents were purified by standard methods. 16 (23), 1000 (70), 734 (13), 450 (7), 378 (8), 189 (35), 88 (90). Mass spectrum (EI, 20 eV)…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Properties of Mercury Bis(trifluoromethyl)phosphanides and Their Phosphane Complexes

2001

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2018

Vibrational Spectra of Organometallics

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Perfluormethyl‐Element‐Liganden. XXVIII. Koordinatives Verhalten von Organoelement‐Element‐Liganden R₂EE′R und R₂EER′₂(R,R′  CH₃, CF₃; E  P, As; E′  S, Se, Te)

Grobe

Van

1984

Zeitschrift anorg allge chemie

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Die Koordinationsfähigkeit von Organoelement‐Element‐Verbindungen des Types R2EE′R und R2EER′2 (R, R′  CH3, CF3; E  P, As; E′  S, Se, Te) in Carbonylen der VI B‐Metalle wird zusammenfassend diskutiert. Die Ergebnisse IR‐ und NMR (1H, 19F, 31P, 13C)‐spektroskopischer Untersuchungen von fünfzig M(CO)5L‐Komplexen (M  Cr, Mo, W) stützen das σ‐Donor/π‐Akzeptor‐Bindungsmodell für die ME‐Verknüpfung. Sterische Einflüsse spielen in dieser Verbindungsreihe nur eine untergeordnete Rolle. Das Verhältnis aus σ‐Donor‐ und π‐Akzeptorstärke nimmt in der Reihe EMe3 > Me2EE(CF3)2, Me2EE′CF3 > (CF3)2EE′Me > E(CF3)3 ab.

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Schwingungsspektren und normalkoordinatenanalyse von (CF3)2EXCH3-verbindungen (E  P, As; X  S, Se)

Cited by 5 publications

References 15 publications

Synthesis and Properties of Mercury Bis(trifluoromethyl)phosphanides and Their Phosphane Complexes

Synthesis and Properties of Mercury Bis(trifluoromethyl)phosphanides and Their Phosphane Complexes

References

Perfluormethyl‐Element‐Liganden. XXVIII. Koordinatives Verhalten von Organoelement‐Element‐Liganden R₂EE′R und R₂EER′₂(R,R′  CH₃, CF₃; E  P, As; E′  S, Se, Te)

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Schwingungsspektren und normalkoordinatenanalyse von (CF3)2EXCH3-verbindungen (E  P, As; X  S, Se)

Cited by 5 publications

References 15 publications

Synthesis and Properties of Mercury Bis(trifluoromethyl)phosphanides and Their Phosphane Complexes

Synthesis and Properties of Mercury Bis(trifluoromethyl)phosphanides and Their Phosphane Complexes

References

Perfluormethyl‐Element‐Liganden. XXVIII. Koordinatives Verhalten von Organoelement‐Element‐Liganden R2EE′R und R2EER′2(R,R′  CH3, CF3; E  P, As; E′  S, Se, Te)

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Perfluormethyl‐Element‐Liganden. XXVIII. Koordinatives Verhalten von Organoelement‐Element‐Liganden R₂EE′R und R₂EER′₂(R,R′  CH₃, CF₃; E  P, As; E′  S, Se, Te)