ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Redoxreaktionen zwischen Tri-tert-butylphosphin und Element(IVb)-tetrachloriden: Tri-tert-butylchlorphosphonium-Salze (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3017-3024 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Redox Reactions between Tri-tert-butylphosphine and Element(IVb)-Tetrachlorides: Tri-tert-butylchlorophosphonium SaltsTri-tert-butylphosphine reacts with equimolare amounts of germaniumtetrachloride or tintetrachloride yielding new compounds with the formula (t-C4H9)3PMCl4 (M=Ge, Sn). The Comparison of n. m. r., infrared-, and raman spectra as well as the conductivities with the corresponding data of tri-tert-butyldichlorophosphorane, prepared, using tri-tert-butylphosphine and Chlorine, indicates, that all these compounds are tri-tert-butylchlorophosphine salts. Tri-tert-butyl-chlorophosphonium salts are also available, by the reaction of tri-tert-butyldichlorophosphorane with various element chlorides.
    Notes: Tri-tert-butylphosphin reagiert mit Germaniumtetrachlorid und Zinntetrachlorid im Molverhältnis 1:1 zu neuen Verbindungen der Zusammensetzung (t-C4H9)3PMCl4 (M=Ge, Sn). Der Vergleich von Kernresonanz- und Schwingungsspektren sowie von Leitfähigkeiten mit den entsprechenden Daten von Tri-tert-butyldichlorphosphoran, das aus Tri-tert-butylphosphin mit elementarem Chlor erhalten wurde, zeigt, daß die Verbindungen als Tri-tert-butylchlor-phosphonium-Salze vorliegen. Weitere Verbindungen dieses Typs sind aus Tri-tert-butyldichlor-phosphoran mit verschiedenen Elementchloriden zugänglich.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090906
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Reaktionen an komplexgebundenen Carbenanalogen, II: Synthese und Schwingungsspektren von Pentacarbonyl[chlor-(di-tert-butylphosphino)stannylen]metall(VI A)-Komplexen (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 2267-2272 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Complex-bound Carbene Analogues, II: Synthesis and Vibrational Spectra of Pentacarbonyl[chloro(di-tert-butylphosphino)stannio]-metal(VI A) ComplexesThe tindichloride complexes pentacarbonyl(dichlorotetrahydrofurane-stannio)chromium(0) (1), -molybdenum(0) (2) and -tungsten(0) (3) react with di-tert-butyl(trimethylsilyl)phosphine with elimination of tetrahydrofurane and formation of chlorotrimethylsilane to give the new, base free stannio complexes (CO)5M—Sn(Cl)[P(tBu)2] (4-6: M = Cr, Mo, W) with 75 to 85% yield. The ligand properties of chloro(di-tert-butylphosphino)-stannandiyl (-stannylene) are discussed on the basis of infrared and Raman data, and other physical properties.
    Notes: Die SnCl2-Metallkomplexe Pentacarbonyl(dichlortetrahydrofuran-stannio)chrom(0) (1), -molybdän(0) (2) und -wolfram(0) (3) reagieren mit Di-tert-butyl(trimethylsilyl)phosphin unter Verdrängung von Tetrahydrofuran und Eliminierung von Chlortrimethylsilan, wobei die neuen basenfreien Stannylenkomplexe (CO)5M—Sn(Cl)[P(tBu)2] (4-6: M = Cr, Mo, W) in 75-85 proz. Ausbeute erhalten werden. Die Ligandeneigenschaften von Chlor(di-tert-butylphosphio)stanandiyl (-stannylen) werden anhand von IR- und Raman-Daten sowie der physikalischen Eigenschaften von Ligand und Komplexen diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110621
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Chlor(organogermyl)phosphine (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 2261-2268 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chlor(organogermyl)phosphineDi-tert-butyl(trimethylsilyl)phosphine reacts with dichlorodimethylgermane, trichloromethylgermane, and germanium tetrachloride to form di-tert-butyl(chlorodimethylgermyl)phosphine (5), di-tert-butyl(dichloromethylgermyl)phosphine (6), and di-tert-butyl(trichlorogermyl)phosphine (7) in high yields. Similarly diphenyl(trimethylsilyl)phosphine and tris(trimethylsilyl)phosphine react with dichlorodimethylgermane to yield new (chlorodimethylgermyl)phosphines (3,8). The vibrational and n.m.r. spectra of the new compounds are discussed.
    Notes: Di-tert-butyl(trimethylsilyl)phosphin reagiert mit Dichlordimethylgerman, Trichlormethylgerman und Germaniumtetrachlorid in hohen Ausbeuten zu Di-tert-butyl(chlordimethylgermyl)phosphin(5), Di-tert-butyl(dichlormethylgermyl)phosphin (6) und Di-tert-butyl(trichlorgermyl)phosphin (7). Entsprechend reagieren Diphenyl(trimethylsilyl)phosphin und Tris(trimethylsilyl)phosphin mit Dichlordimethylgerman zu neuen (Chlordimethylgermyl)phosphinen (3,8). Schwingungsspektren und Kernresonanzspektren der neuen Verbindungen werden diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19751080713
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Organo[chlor(methyl)stannyl]phosphine und -amine (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 237-245 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organo[chloro(methyl)stannyl]phosphines and -aminesEquimolar amounts of di-tert-butyl(trimethylsily)phosphine (1) and dichlorodimethylstannane or trichloro(methyl)stannane react with formation of di-tert-butyl(chlorodimethylstannyl)phosphine (2) and di-tert-butyl[dichloro(methyl)stannyl]phosphine (3), respectively. The reaction of 1 with trichloro(methyl)stannane in a molar ratio of 2:1 yields chloro(methyl)stannanediylbis(di-tert-butylphosphine)(4). All experiments to synthesize he analogous (chlorodimethylstannyl)diphenyl-phosphine failed. A new method for the synthesis of (chlorodimethylstannyl)diethylamine (6) and (bromodimethylstannyl)diethylamine (7) was found with the reaction of bis(diethylamino)dimethylstannane with chloro- and bromotrimethylsilane, respectively. The i. r. and 1H n.m.r. spectra are discussed.
    Notes: Äquimolare Mengen von Di-tert-butyl(trimethylsilyl)phosphin (1) und Dichlordimethylstannan bzw. Trichlor(methyl)stannan reagieren unter Bildung von Di-tert-butyl(chlordimethylstannyl)-phosphin (2) und Di-tert-butyl[dichlor(methyl)stannyl]phosphin (3). Die Umsetzung von 1 mit Trichlor(methyl)stannan im Molverhältnis 2:1 führt glatt zu Chlor(methyl)stannandiylbis(di-tert-butylphosphin) (4). Die Versuche, ein entsprechendes (Chlordimethylstanny)diphenyl-phosphin zu synthetisieren, schlugen dagegen fehl. Diäthyl(chlordimethylstannyl)amin (6) und Diäthyl(bromdimethylstannyl)amin (7) werden durch Spaltung von Bis(diäthylamino)dimethylstannan mit Chlor- bzw. Bromtrimethylsilan dargestellt. IR- und NMR-Spektren werden diskutiert.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090123
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Triorganophosphin-dichlorgermylene (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3419-3425 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Triorganophospine-dichlorogermylenesTriphenylphosphine, triethylphosphine and tri-tert-butylphosphine react with equimolar amounts of germaniumdichloride.dioxane yielding triorganylphosphine-dichlorogermylenes R3PGeCl2 (R=C2H5, C6H5, t-C4H9). With tri-n-butylphosphine only a mixture of dioxane-stabilized and phosphine-stabilized GeCl2 was obtained. Formation and properties as well as n. m. r., infrared and raman spectra of the new compounds are discussed.
    Notes: Triphenylphosphin, Triäthylphosphin und Tri-tert-butylphosphin reagieren mit dem Germanium-dichlorid-Dioxan-Komplex unter Verdrängung von Dioxan zu den Triorganylphosphin-dichlorgermylenen R3PGeCl2 (R=C2H5, C6H5, t-C4H9). Mit Tri-n-butylphosphin wird lediglich ein Gemisch von dioxanstabilisiertem und phosphinstabilisiertem GeCl2 erhalten. Bildungsweise und Eigenschaften sowie 1H-NMR-, 31P-NMR-, infrarot- und ramanspektroskopische Daten der Verbindungen werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761091019
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Pentacarbonyl[di-tert-butyl(chlordimethylgermyl- und -stannyl)phosphin]chrom(0), -molybdän(0) und -wolfram(0) (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 246-252 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Pentacarbonyl[di-tert-butyl(chlorodimethylgermyl- and -stannyl)phosphine]chromium(0), -molybdenum(0) and -tungsten(0)Di-tert-butyl(chlorodimethylgermyl)phosphine (1) and di-tert-butyl(chlorodimethylstannyl)phosphine (2) react with pentacarbonyl(tetrahydrofurane(chromium(0),-molybdenum(0) and -tungsten- (0) to form the corresponding pentacabonyl[di-tert-butyl(chlorodimethylgermyl- and -stannyl)- phosphine]-metal(0) complexes 3a-c and 4a-c, respectively. The vibrational- and nuclear magnetic resonance spectra are discussed.
    Notes: Di-tert-butyl(chlordimethylgermyl)phosphin (1) bzw. Di-tert-butyl(chlordimethylstannyl)phosphin (2) reagieren mit Pentacarbonyl(tetrahydrofuran)chrom(0), -molybdän(0)und -wolfram(0)unter Bildung der entsprechenden Pentacarbonyl[di-tert-butyl(chlordimethylgermyl- bzw. -stannyl)phosphin]-metall(0)-Komplexe 3a-c bzw. 4a-c. Die Schwingungs- und Kernresonanzspektren werden diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090124
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Substitutionsreaktionen an Di-tert-butyl(chlordimethylstannyl bzw. germyl)phosphin (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 1017-1022 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Substitution reactions at Di-tert-butyl(chlorodimethylstannyl)phosphine and Di-tert-butyl(chlorodimethylgermyl)phosphineDi-tert-butyl(chlorodimethylstannyl)phosphine (2) reacts with di-tert-butyl(trimethylsilyl) phoshine (1) or sodium trimethylsilanolate to form dimethylstannanediylbis(di-tert-butylphosphine) (4) or di-tert-butyl[dimethyl(trimethylsiloxy)stannyl]phosphine (7), respectively, In contrast the analogous di-tert-butyl(chlorodimethylgermyl)phosphine (6) does not react with 1 but only with sodium trimethylsilanolate yielding di-tert-butyl[dimethyl(trimethylsiloxy)germyl]phosphine (8). The vibrational and n. m. r. spectra of the new compounds are discussed.
    Notes: Di-tert-butyl(chlordimethylstannyl)phosphin (2) reagiert mit Di-tert-butyl(trimethylsilyl)phosphin (1) zu dimethylstannandiylbis(di-tert-butylphosphin) (4), mit Natrium-trimethylsilanolat zu Di-tert-butyl[dimethyl(trimethylsiloxy)stannyl]phosphin (7). Di-tert-butyl(chlordimethylgermyl)phosphin (6) reagiert dagegen nicht mit 1, bildet aber bei der Umsetzung mit Natrium-trimethylsilanolat Di-tert-butyl[dimethyl(trimethylsiloxy)germyl]phosphin (8) Die Schwingungs- und Kernresonanzspektren der neuen Verbindungen werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090322
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Interpretation of the real plate number concept: A fundamental analysis (1978)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 1 (1978), S. 41-46 
    Details
    ISSN: 0935-6304
    Keywords: Chromatography ; Theory ; Chromatographic systems analysis ; Real plate number ; Fundamental interpretation ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The real plate number concept is interpreted in terms of the fundamental properties of a chromatograph. It is shown that the linear relationship between the total peak width at half height, (b0.5)T, t, and k is only an approximation of the more general linear relationship between (b0.5)2T, t and (1 + k)2. In the case where the relationship between (b0.5)T, t and k approaches linearity, it is concluded, firstly, that b0 = a, i. e., b0 is a column property and independent of extra-column phenomena and, secondly, that nreal=ntheor. When the relationship becomes non-linear, b0 is determined partly by extra-column phenomena, but not in terms of a useful relationship. It is concluded that it is unnecessary to introduce the parameters a, b0 and nreal, since they all have counterparts in the established theory of chromatography. These counterparts prove to be equally useful in the practical analysis of chromatographic systems.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240010109
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Gas chromatographic conditions for the linearity of the relationship between σT,t and tR in open tubes (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 456-460 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary ; Theory ; Linearity between peak width and retention data ; Evaluation of GC equipment ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The linearity of the relationship between σT,t2 and (1 + k)2 is studied with the view of using it for the evaluation of GC equipment. Based on appropriate analytical expressions it is concluded that in general this relationship is not linear and that practical procedures for column evaluation should be developed that take this non-linearity into account.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020716
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Die Reduktion von Germanium- und Zinntetrabromid durch Tri-tert-butylphosphin: Brom-tri-tert-butylphosphonium-SalzeProfessor Kurt Issleib zum 60. Geburtstage gewidmet (1979)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 458 (1979), S. 85-88 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reduction of Germanium and Tin Tetrabromide by Tri-tert-butylphosphine: Bromo-tri-tert-butylphosphonium IonsTri-tert-butylphosphine react with equimolar amounts of germanium or tin tetrabromide with formation of “1:1 adducts”. The new compounds are characterized as bromo-tri-tert-butylphosphonium salts (t-C4H9)3PBr+MBr3- by 1H n.m.r., 31P n.m.r., infrared and Raman spectroscopy (M = Ge, Sn).
    Notes: Germanium- und Zinntetrabromid reagieren mit Tri-tert-butylphosphin unter Bildung von 1:1 „Addukten“ der Zusammensetzung (t-C4H9)3PMBr4 (M = Ge, Sn). Die neuen Verbindungen werden durch 1H- und 31P-NMR-Spektren sowie durch Infrarot- und Ramanspektren als Brom-tri-tert-butylphosphoniumsalze (t-C4H9)3PBr+MBr3- charakterisiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19794580111
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...