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
Filter
  • GdIII  (3)
  • Dicyclopentadienyl [bis(trimethylsilyl)phosphanido]titanium, [Cp2TiP(SiMe3)2]  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Thioureato-verbrückte zweikernige Komplexe der Lanthanoide Darstellung und Struktur von [{PhC(NPh)NC(S)NEt2}{Et2NC(S)NH}LnBr(thf)]2 (Ln = Gd, Sm)Professor Kurt Dehnicke zum 65. Geburtstag gewidmet (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 734-738 
    Details
    ISSN: 0044-2313
    Keywords: GdIII ; SmIII ; binuclear complex ; thioureato-ligand ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Thioureato Brigded Binuclear Complexes of the Lanthanides Synthesis and Crystal Structure of [{PhC(NPh)NC(S)NEt2}{Et2NC(S)NH}LnBr(thf)]2 (Ln = Gd, Sm)The reaction of potassium-N-(diethylaminothiocarbonyl)-N′-phenyl-benzamidinat with LnBr3 (Ln = Gd, Sm) leads to the formation of the binuclear complexes [{PhC(NPh)NC(S)NEt2}{Et2NC(S)N}LnBr(thf)]2} (Ln = Gd 1, Sm 2). The two bridging thiureatoligands are probably built during the reaction of potassium with the starting ligand. Coordination by one N-(diethylaminothiocarbonyl)-N′-phenylbenzamidinato-ligand, one Br-ion and one THF-ligand leads to square antiprismatic coordination of the lanthanoids. The structures of both compounds were characterized by X-ray analysis (1: P1 (Nr.2), Z = 1, a = 12,006(4) Å, b = 12,245(4) Å, c = 13,612(3) Å, α = 70,55(3)°, β = 68,21(3)°, γ = 81,31(3)° 2: P1 (Nr.2), Z = 1, a = 11,803(3) Å, b = 12,344(5) Å, c = 12,797(8) Å, α = 103,07(5)°, β = 101,76(3)°, γ = 114,13(3)°)
    Notes: Bei der Reaktion von Kalium-N-(diethylaminothiocarbonyl)-N′-phenyl-benzamidinat mit LnBr3 (Ln = Gd, Sm) bilden sich die zweikernigen Komplexe [{PhC(NPh)NC(S)NEt2}{Et2NC(S)N}LnBr(thf)]2} (Ln = Gd 1, Sm 2). Die Lanthanoidionen werden durch zwei Thioureatoeinheiten verbrückt, die sich vermutlich schon bei der Metallierung des Liganden bilden. Durch zusätzliche Koordination eines N-(Diethylaminothiocarbonyl)-N′-phenyl-benzamidinato-Liganden sowie eines THF-Moleküls und eines Brom-Atoms erhält jedes Lanthanoidion eine quadratisch antiprismatische Koordination.Der Aufbau dieser Verbindungen konnte durch Kristallstrukturuntersuchungen geklärt werden (1: P1 (Nr.2), Z = 1, a = 12,006(4) Å, b = 12,245(4) Å, c = 13,612(3) Å, α = 70,55(3)°, β = 68,21(3)°, γ = 81,31(3)° 2: P1 (Nr.2), Z = 1, a = 11,803(3) Å, b = 12,344(5) Å, c = 12,797(8) Å, α = 103,07(5)°, β = 101,76(3)°, γ = 114,13(3)°)
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966220429
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Zur Reaktion von [Cp2TiCl]2 und TiCl4 mit LiE(SiMe3)2 (E = P, As) und P(SiMe3)3 Die Kristallstrukturen von [Cp2TiP(SiMe3)2], [(Cp2Ti)2ClAs(SiMe3)2] und [TiCl3 {P(SiMe3)3}2]Professor Kurt Dehnicke zum 60. Geburtstage gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 595 (1991), S. 57-66 
    Details
    ISSN: 0044-2313
    Keywords: Dicyclopentadienyl [bis(trimethylsilyl)phosphanido]titanium, [Cp2TiP(SiMe3)2] ; μ-chloro-μ-bis(trimethylsilyl)arsanido-bis(dicyclopentadienyl)titanium, [(Cp2Ti)2ClAs(SiMe3)2] ; trichloro-bis[tris(trimethylsilyl)phosphane]titanium, [TiCl3{P(SiMe3)3}2] ; syntheses ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of [CpTiCl]2 and TiCl4 with LiE(SiMe3)2 (E = P, As) and P(SiMe3)3. The Crystal Structures of [Cp2TiP(SiMe3)2], [(Cp2Ti)2ClAs(SiMe3)2], and [TiCl3 {P(SiMe3)3}2][Cp2TiCl]2 reacts with LiP(SiMe3)2 to form the mono nuclear complex [Cp2TiP(SiMe3)2] (3). 3 has been characterized by X-ray crystal structure analysis. 3 is paramagnetic and Ti is coordinated by two Cp ligands and a P(SiMe3)2 group. The geometry about the phosphorus atom is nearly trigonal planar. As a result of π-interactions one can find a short Ti—P bond length of about 246.7 pm. In contrast to the formation of 3, the reaction of [Cp2TiCl]2 with LiAs(SiMe3)2 yields the dinuclear Ti complex [(Cp2Ti)2ClAs(SiMe3)2] (4). TiCl4 and P(SiMe3)3 react to from the complex [TiCl3{P(SiMe3)3}2] (2). The Ti atom in 2 is coordinated to three Cl1- and two P(SiMe3)3 ligands.
    Notes: [Cp2TiCl]2 reagiert mit LiP(SiMe3)2 zu dem einkernigen Komplex [Cp2TiP(SiMe3)2] (3). Die Struktur des paramagnetischen 3 konnte mit Hilfe einer Kristallstrukturanalyse aufgeklärt werden. Danach wird das Titanatom von 2 Cp-Liganden und einer P(SiMe3)2-Gruppe koordiniert. Die an P gebundenen Atome liegen dabei in einer Ebene mit dem P-Atom. Als ein Ergebnis der π-Wechselwirkung zwischen Ti und P beobachtet man eine kurze Ti—P-Bindungslänge von 246,7 pm. Dagegen reagiert [Cp2TiCl]2 mit LiAs(SiMe3)2 zu dem zweikernigen Komplex [(Cp2Ti)2ClAs(SiMe3)2] (4). Setzt man TiCl4 mit P(SiMe3)3 um, erhält man weiße Kristalle der Zusammensetzung [TiCl3 {P(SiMe3)3}2] (2). In 2 ist Ti trigonal bipyramidal an die Cl1-- und P(SiMe3)3-Liganden gebunden.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915950109
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Synthese und Struktur eines Molybdän-Gadolinium-Heterometall-Komplexes Die Struktur von [Li(thf)4]2[Cp2MoSGdBr4(thf)]2 (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 819-821 
    Details
    ISSN: 0044-2313
    Keywords: MoIV ; GdIII ; Mo—Gd heterobimetallic complex ; X-ray structure analysis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and structure of a Molybdenum-Gadolinium Heterometallic Complex. The Structure of [Li(thf)4]2[Cp2MoSGdBr4(thf)]2[Cp2MoHLi] reacts in THF with S and GdBr3 to yield the tetranuclear heterobimetallic complex [Li(thf)4]2[Cp2MoSGdBr4(thf)]2. The bonding situation and the structure of this compound were characterized by X-ray structure analysis (space group P1 (No. 2), Z = 1, a = 10.845(2) Å, b = 12.166(2) Å, c = 15.881(2) Å, α = 101.74(2)°, β = 97.62(2)°, γ = 103.97(2)°). Each S atom of the central Mo2S2-ring is coordinated by a GdBr4(thf) fragment. Additionally each Mo atom is connected to two Cp ligands. This leads to a tetrahedral coordination of the Mo atoms and a octahedral coordination of the Gd ions.
    Notes: [Cp2MoHLi] reagiert in THF mit S und GdBr3 zu dem vierkernigen Heterometallkomplex [Li(thf)4]2[Cp2MoSGdBr4(thf)]2. Die Bindungsverhältnisse und der Aufbau dieser Verbindung konnten durch eine Kristallstrukturanalyse geklärt werden (Raumgruppe P1 (Nr. 2), Z = 1, a = 10,845(2) Å, b = 12,166(2) Å, c = 15,881(2) Å, α = 101,74(2), β = 97,62(2)°, γ = 103,97(2)°). An den zentralen Mo2S2-Vierring koordiniert ein GdBr4(thf)-Fragment, so daß jedes Gd-Ion an sechs Liganden gebunden ist. Zusätzlich ist jedes Mo-Atom von zwei Cp-Liganden umgeben und erhält dadurch die Koordinationszahl 4.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200511
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Neue Benzylkomplexe der Lanthanoiden. Darstellung und Kristallstrukturen von [(C5Me5)2Y(CH2C6H5)(thf)], [(C5Me5)2Sm(CH2C6H5)2K(thf)2]∞ und [(C5Me5)Gd(CH2C6H5)2(thf)] (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1913-1919 
    Details
    ISSN: 0044-2313
    Keywords: YIII ; SmIII ; GdIII ; benzyl ; complexes ; synthesis ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Benzyl Complexes of the Lanthanides. Synthesis and Crystal Structures of [(C5Me5)2Y(CH2C6H5)(thf)], [(C5Me5)2Sm(CH2C6H5)2K(thf)2]∞, and [(C5Me5)Gd(CH2C6H5)2(thf)]YBr3 reacts with potassium benzyl and [K(C5Me5)] in THF to give KBr and the monobenzyl compound [(C5Me5)2 · Y(CH2C6H5)(thf)] 1. The analogous reaction with SmBr3 in THF leads to the polymeric product [(C5Me5)2Sm(CH2C6H5)2 ∞ K(thf)2]∞ 2, with GdBr3 to [(C5Me5)Gd(CH2C6H5)2(thf)] 3.The structures of 1-3 were determined by X-ray single crystal structure analysis: 1:Space group P1, Z = 2, a = 851.2(4) pm, b = 952.7(4) pm, c = 1858.6(8) pm, α = 79.90(4)°, β = 77.35(4)°, γ = 73.30(3)°.2:Space group P1, Z = 2, a = 903.3(2) pm, b = 1375.9(3) pm, c = 1801.1(4) pm, α = 100.92(3)°, β = 100.77°, γ = 98.25(3)°.3:Space group P21/n, Z = 8, a = 1458.2(5) pm, b = 927.8(3) pm, c = 3792.9(15) pm, β = 96.83(3)°.
    Notes: YBr3 reagiert in Gegenwart von K(C5Me5) mit Kaliumbenzyl in THF unter Abspaltung von KBr zu der Monobenzylverbindung [(C5Me5)2Y(CH2C6H5)(thf)] 1. Die entsprechende Umsetzung mit SmBr3 führt in THF zu der polymeren Verbindung [(C5Me5)2Sm(CH2C6H5)2K(thf)2]∞ 2, mit GdBr3 zu [(C5Me5)Gd(CH2C6H5)2(thf)] 3. Die Strukturen von 1-3 wurden jeweils durch Anfertigen einer Einkristallstrukturanalyse geklärt: 1: Raumgruppe P1, Z = 2, a = 851,2(4) pm, b = 952,7(4) pm, c = 1858,6(8) pm, α = 79,90(4)°, β = 77,35(4)°, γ = 73,30(3)°.2: Raumgruppe P1, Z = 2, a = 903,3(2) pm, b = 1375,9(3) pm, c = 1801,1(4) pm, α = 100,92(3)°, β = 100,77°, γ = 98,25(3)°.3: Raumgruppe P21/n, Z = 8, a = 1458,2(5) pm, b = 927,8(3) pm, c = 3792,9(15) pm, β = 96,83(3)°.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966221117
    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...