ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
  • Titanium  (4)
  • Metallaheterocycles  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 1345-1346 
    ISSN: 0009-2940
    Keywords: Sulphur-nitrogen ring ; Titanium ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Adduct of a Five-Membered Trisulfurdinitrogen Dioxide Ring with Titanium TetrachlorideReaction of S6N4O4 with TiCl4 lead to [(S3N2O2)TiCl4]2 (2). Single crystals of 2 were obtained by recrystallization from liquid SO2. 2 forms chains of five-membered S3N2O2 rings connected by Ti2Cl8 units. The S2N2 part of the five-membered ring may be described as a 6-π electron system.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 1641-1643 
    ISSN: 0009-2940
    Keywords: Metallaheterocycles ; Niobium heterocycles ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and X-ray Structure of a Nine-Membered Heterocycle Containing Niobium and Oxidic and Nitridic Structural Elements(Me3SiN—PPh2CH2)2 (1) reacts with NbCl5 to form (H2C—PPh2=NNbCl4)2 (2). The reaction of 2 with THF yields the nine-membered metallaheterocycle (3). Simultaneously, (ClCH2CH2)2 is produced. The X-ray structure of 3 is reported.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 753-756 
    ISSN: 0009-2940
    Keywords: Metal chelates ; Tetrachloroimidodiphosphates of Al, Ga, In, Sn, Ti ; Metallaheterocycles ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis of Imidodiphosphates of Aluminum, Gallium, Indium, Tin, and Titanium.Me3SiN[P(O)Cl2]2, (1) and Me3SnN[P(O)Cl2]2 (2) are synthesized from NaN[P(O)Cl2]2 and Me3SiCl or Me3SnCl, respectively. Treatment of 1 with AlCl3, GaCl3 InCl3, Me2SnCl2, and TiCl4 yields (3), (4), (5), (6), and (7), respectively. Reaction of LiN[P(O)Ph2]2 with TiCl4 leads to (8). NMR spectra demonstrate that the tetrachloroimidodiphosphate ligand coordinates through the oxygen atoms towards the metal atom.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 1787-1790 
    ISSN: 0009-2940
    Keywords: Silicon ; Titanium ; Diazadisilatitanacyclopentane ; Aminodisilanes ; Tetrachlorodisilanes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reaction of two equivalents of N-trimethylsilylaniline (1) with two equivalents of n-butyllithium, followed by subsequent treatment with Si2Cl6 (2) leads to the formation of the tetrachlorodisilane RSiCl2SiCl2R (3) (R = PhNSiMe3). 3 is converted to RSi(NH2)2Si(NH2)2R (4) by reaction with liquid ammonia. 4 reacts with cp*TiMe3 (5) (cp* = η5-CsMe5) to yield the diazadisilatitanacyclopentane RSi(NH2)NHTiMe(cp*)NHSi(NH2)R (6). The crystal structure of 6 is reported.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 0009-2940
    Keywords: Organometallic fluorides ; Titanium ; π1-Complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Preparation and Reactions of (η51-Pentamethylcyclopentadienyl)1- and (η51-Ethyltetramethylcyclopentadienyl)titanium Trifluoride[1]Compound Cp*TiCl3 (1, Cp*=η51-Me5C5) reacts with an excess of AsF3 to yield the crystalline complex [Cp*TiF3]2·2 AsF3 (2). AsF3 can be removed from 2 in vacuo to give Cp*TiF3 (3). Complex (η51-EtMe4C5)TiCl3 (4) is converted by an excess of AsF3 to (η51-EtMe4C5)TiF3 (5). Compound 3 reacts with a lithium 1,3-diketonate to form the hexacoordinated complex (6) and with a lithium benzamidinate to yield pentacoordinated Cp*TiF2[(Me3SiN)2 C-C6H4OMe-(4)] (7): The reaction of 3 with Ph3PNSiMe3 and C2H2(Ph2PNSiMe3)2 leads to Cp*TiF2NPPh3 (8) and (Cp*TiF2NPPh2)2C2H2 (9), respectively. X-Ray structure analyses of compounds 2 and 5-9 have been performed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 399-404 
    ISSN: 0009-2940
    Keywords: Disilylamides ; Group 4 Complexes ; Polymerization ; Metallacycles ; Titanium ; Zirconium ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A series of metallacyclodisiladiazanes has been prepared. Lithiated (SiMe2NHtBu)2 (1) reacts with TiCl4 · 2 THF to give (SiMe2NtBu)2TiCl (4). Methylation or fluorination of 4 leads to (SiMe2NtBu)2TiMe2 (8) and (SiMe2MtBu)2TiF2 (9), respectively. The reaction of ZrCl4 · 2 THF with lithiated 1 or [SiMe2NH(4-FC6J4)]2 (2) yields (SiMe2NtBu)2ZrCl2 (5) and [SiMe2N(4-FC6H4)]ZrCl2 · THF (7), respectively. The lithiated ligand [SiMe2NH(2,6-iPr2C6H3)]2 (3) reacts with noncoordinated ZrCl4 to give [SiMe2N(2,6-iPr2C6H3)]2ZrCl2 (6). X-ray structural analysis of 9 showed it to be a fluorine-bridged dimer in the solid state. Compounds 4, 6, 8 and 9 were found to be catalysts for the polymerization of ethylene.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 1247-1254 
    ISSN: 0009-2940
    Keywords: Ferrocenyl-substituted heterocycles ; Heterocycles with As, N, P, S ; Metallaheterocycles ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Inorganic Ring System Containing Ferrocenyl SubstituentsThree-, four-, five-, and eight-membered heterocycles are synthesized starting from FcPCl2 (1), FcPH2 (2), FcAsCl2 (3) and Fe(C5H4AsCl2)2 (4) (Fc = Ferrocenyl). Treatment of 1 with 2 in the presence of DBU yields (FcP)n, which reacts with (Ph3P)2Pt(C2H4) to give (7). The corresponding As2Pt ring system 9 is available in high yield via (FcAs)3 (8). The reduction of 1 with LiAlH4 yields (FcP)4 (10). A five-membered arsenic sulfur heterocycle, Fc2As2S3 (12), is formed in the reaction of FcAs=P(2,4,6-tBu3C6H2) (11) with sulfur. FcAsCl2 (3) reacts with Me3SiNSNSiMe3 to give FcAs(NSN)2AsFc (13), which contains an eight-membered As2S2N4 ring. Its complexation with (norbornadiene)M(CO)4 leads to the tetracarbonyl complexes [FcAs(NSN)2AsFc]M(CO)4 (14, 15; M = Cr, Mo). An arsenic-bridged ferrocenophane 16 can be isolated from the reaction of Fe(C5H4Li)2 x TMEDA with AsCl3. The reaction of 4 with Me3SiNSNSiMe3 also produces a condensed ferrocenophane derivative, (C5H4)2FeAs2N6S4 (17). The molecular structures of 13 and 17 have been determined by X-ray diffraction.
    Notes: Ausgehend von FcPCl2 (1), FcPH2 (2), FcAsCl2 (3) und Fe(C5H4AsCl2)2 (4) werden drei-, vier-, fünf- und achtgliedrige Heterocyclen mit Ferrocenyl-Substitutenten synthetisiert (Fc = Ferrocenyl). Durch Umsetzung von 1 mit 2 in Gegenwart von DBU entsteht (FcP)n, das mit (Ph3P)2Pt(C2H4) zu (7) reagiert. Der analoge As2Pt-Ring 9 ist über (FcAs)3 (8) in guter Ausbeute zugänglich. Die Reduktion von 1 mit LiAlH4 liefert (FcP)4 (10). Ein fünfgliedriger Arsen-Schwefel-Heterocyclus, Fc2As2S3 (12), entsteht durch Umsetzung von FcAs=P(2,4,6-tBu3C6H2) (11) mit Schwefel. FcAsCl2 (3) reagiert mit Me3SiNSNSiMe3 zu FcAs(NSN)2AsFc (13), das einen achtgliedrigen As2S2N4-Ring enthält. Dessen Komplexierung mit (Norbornadien)M(CO)4 führt zu den Tetracarbonyl-Komplexen [FcAs(NSN)2AsFc]M(CO)4 (14, 15; M = Cr, Mo). Ein Arsenüberbrücktes Ferrocenophan 16 kann bei der Reaktion von Fe(C5H4Li)2 × TMEDA mit AsCl3 isoliert werden. Auch die Umsetzung von 4 mit Me3SiNSNSiMe3 liefert ein kondensiertes Ferrocenophan-Derivat der Zusammensetzung (C5H4)2FeAs2N6S4 (17). Die Molekülstrukturen von 13 und 17 wurden röntgenographisch bestimmt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...