The Preparation of Alkyllead Salts

Calingaert, George; Dykstra, F. J.; Shapiro, Hymin

doi:10.1021/ja01218a011

Cited by 24 publications

(14 citation statements)

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“…The three compounds studied have been synthe sized according to the literature: (CH3)3SnCl [4], (CH3)3PbCl [5], and CH3SnBr3 [6], The compounds are air sensitive and have to be handled in a dry inert gas atmosphere.…”

Section: Methodsmentioning

confidence: 99%

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

Zhang

Dou

Weiß

1991

Zeitschrift Für Naturforschung A

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The molecular motion in (CH3)3XC1, X = Sn and Pb has been investigated by measurement of the second moment M2(xH) as function of temperature in the range 95 < T,/K<345. The methyl groups in both compounds rotate freely over the whole temperature range studied. In (CH3)3SnCl the C'3-rotation of (CH3)3Sn-group about the Sn CI axis sets in above 273 K. To explain the NMR and INS results, the crystal structures of (CH3)3PbCl and CH3SnBr3 were determined by single X-ray diffraction. (CH3)3PbCl crystallizes in a monoclinic space group C2-C2, a = 1276.7(3) pm, £ > = 982.3(3) pm, c = 547.0(2) pm, 0 = 91.12(1)°; Z = 4, Ä = 0.035. CH3SnBr3 crystallizes in an or thorhombic space group D^-Pnma, a = 643.0(3) pm, b= 1005.3(4) pm, c= 1148.0(4) pm; Z = 4, R =0.057.M o le c u la r M o tio n s in ( C H 3) 3XC1, X = S n a n d P b .

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Section: Methodsmentioning

confidence: 99%

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

Zhang

Dou

Weiß

1991

Zeitschrift Für Naturforschung A

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“…An initial attehpt to extract (CH,),PbOH from benzene, using a method developed for triethyllead chloride (9), yielded only an insoluble, gelatinous mass of unknown composition. Ion exchange has been used to remove acetate from methylmercuric hydroxide solutions (lo), and a similar method was developed for the conversion of (CH3)3PbOZCCH3 to trimethyllead perchlorate.…”

Section: Chemicalsmentioning

confidence: 99%

Nuclear magnetic resonance studies of the solution chemistry of metal complexes. XIV. The aqueous chemistry of trimethyllead(IV) and its carboxylic acid complexes

Sayer¹,

Backs²,

Evans³

et al. 1977

Can. J. Chem.

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The aqueous solution chemistry of the trimethyllead(IV) species and the trimethyllead(IV) complexes of six carboxylic acids of pKa values ranging from 2.75 to 4.95 has been investigated by proton magnetic resonance spectroscopy. Equilibrium constants for the reaction of (CH3)3Pb+ with hydroxide ion to form (CH3)3PbOH and ((CH3)3Pb)2OH+, and the formation constants of the carboxylic acid complexes were determined from the pH dependence of the chemical shift of the methyl protons of trimethyllead. The formation constants of the complexes increase as the pKa of the ligand increases. The lead-207-proton coupling constant was found to be insensitive to complexation.

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“…Et4Pb + HX S°lvent ) Et3PbX + C2H6 Hydrogen chloride reacts with TEL at room temperature to give good yields of triethyllead chloride (12,13,15,23,53,101,135). A variety of solvents and gaseous or concentrated hydrogen chloride may be used.…”

Section: Reaction With Inorganic Acidsmentioning

confidence: 99%

“…A variety of solvents and gaseous or concentrated hydrogen chloride may be used. Use of the gas and a hexane solvent appears to be best on the basis of both yield (86 to 97%) and purity of product (23). Under more drastic conditions, the reaction may proceed beyond the triethyllead stage.…”

Section: Reaction With Inorganic Acidsmentioning

confidence: 99%

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Chemical Reactions of Tetraethyllead

Milde¹,

Beatty²

1959

Metal-Organic Compounds

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This report gives a compilation of the periodical and patent literature on the known chemical reactions of tetraethyllead (TEL). These are by no means con fined to antioxidant and antiknock effects. Of par ticular interest are those reactions wherein ethyl radicals, liberated from TEL by photolysis or pyrolysis, induce the polymerization, chlorination, or oxidation of other compounds. Many different diethyl-and triethyllead salts are readily obtained from the parent compound. TEL is used to prepare other organome tallic compounds, and its reaction with heavy metal chlorides produces Ziegler-type catalysts for the polymerization of olefins. In view of its ready avail ability, these relatively unexplored end uses for TEL constitute an area of considerable research potential.Tetraethyllead-commonly abbreviated to TEL-is the outstanding example of the simple or R n M type of organometallic compound of moderate chemical reactivity. It has been known for over 100 years, as it was one of the first of these compounds to be isolated, and it is now unique in industrial importance. As a consequence, the reac tions of TEL have been widely investigated. However, there still remain many oppor tunities for worthwhile research in this field.The chemistry of organolead compounds in general has often been reviewed (58,113,120), notably by Calingaert (17), Krause (82), and most recently Gilman (45,83) and their coworkers: men who have contributed much of the important ex perimental work on the subject. Reviews in particular have been made by German and Russian workers (81, 131), but these are not readily accessible and are now out of date.Considering the variety of chemical reactions into which TEL can enter, and its ready availability at a relatively low cost, there may well be good use for the follow ing compilation of the available information on these reactions. PhotolysisTEL is readily dissociated by light. The vapor shows continuous absorption in the ultraviolet with the formation of metallic lead and ethyl radicals, the latter being detected by the Paneth method (33, 103, 124) · Maximum absorption occurs at about 306

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The Preparation of Alkyllead Salts

Cited by 24 publications

References 0 publications

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

Nuclear magnetic resonance studies of the solution chemistry of metal complexes. XIV. The aqueous chemistry of trimethyllead(IV) and its carboxylic acid complexes

Chemical Reactions of Tetraethyllead

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The Preparation of Alkyllead Salts

Cited by 24 publications

References 0 publications

Molecular Motions in (CH3)3XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH3)3PbCl and CH3SnBr3

Molecular Motions in (CH3)3XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH3)3PbCl and CH3SnBr3

Nuclear magnetic resonance studies of the solution chemistry of metal complexes. XIV. The aqueous chemistry of trimethyllead(IV) and its carboxylic acid complexes

Chemical Reactions of Tetraethyllead

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Product

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About

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃