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
  • Chemistry  (24)
  • X-ray structure  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Titanium-magnesium complexes containing perpendicularly bridging bis(trimethylsilyl) acetylene ligands
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 475 (1994), S. 127-137 
    Details
    ISSN: 0022-328X
    Keywords: Bis(trimethylsilyl)acetylene ; Bridging ligand ; Magnesium ; Titanium ; X-ray structure
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-328X(94)84015-6
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Tricyclische Übergangsmetallkomplexe mit Silicium-haltigen Ringsystemen: Die Strukturen von Ni(C6H17N5S4Si2) und Co(C4H12N4S4OSi2)Frau Professor Margot Becke-Goehring zum 60. Geburtstage gewidmet (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 406 (1974), S. 319-328 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tricyclic Transition Metal Complexes with Ring Systems Containing Silicon: The Structures of Ni(C6H17N5S4Si2) und Co(C4H12N4S4OSi2)Crystals of Ni(C6H17N5S4Si2) 3 b are orthorhombic, space group Pbcn, with a = 10.341, b = 11,650, c = 14.163 Å and Z = 4 and crystals of Co(C4H12N4S4OSia) 4b are monoclinic, space group P21/c, with a = 7.304, b = 17.866, c = 11.805 Å, β = 100.88° and Z = 4. The structures have been determined by an X-ray crystallographic analysis and were refined to R = 0.060 for 3b and 0.114 for 4b. The two almost planar MN3S2 chelate rings per molecule intersect with an angle pf 16.2° in 3 b and 27.0° in 4 b. The six-membered rings containing silicon are puckered in such a way that both molecules exhibit (approximate) C2 symmetry.
    Notes: Der Komplex Ni(C6H17N5S4Si2) 3b kristallisiert in der orthorhombischen Raumgruppe Pbcn mit a = 10.341, b = 11.650, c = 14.163 Å und Z = 4 und der Komplex Co(C4H12N4S4OSi2) 4b kristallisiert in der monoklinen Raumgruppe P21/c mit a = 7.304, b = 17.866, c = 11,805 Å, β= 100.88° und Z = 4. Die Strukturen wurden röntgenographisch bestimmt und bis zu R = 0.060 bzw. 0.114 verfeinert. Die praktisch ebenen MN2S2-Chelatringe bilden Flächenwinkel von 16.2° in 3b und 27.0° in 4b. Die Silicium enthaltenden sechsgliedrigen Ringe sind derart gewellt, daß beide Moleküle die (angenäherte) Eigensymmetrie C2 aufweisen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744060227
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Mehrkernige Kobaltkomplexe: Die Struktur von Bis(tri-μ-hydroxo-bis{triamminkobalt(III)}) trisdithionat (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 412 (1975), S. 29-36 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Polynuclear Cobalt Complexes: The Structure of Bis(tri-μ-hydroxo-bis{triammine-cobalt(III)})trisdithionateThe binuclear complex [(NH3)3Co · μ(OH, OH, OH) · Co(NH3)3]2(S2O6)3 crystallizes in the monoclinic space group P21/c with lattice constants a = 10.970, b = 9.412, c = 16.069 Å and β = 117.10°. The unit cell contains four cations and six anions. The structure has been determined by an X-ray crystallographic analysis and was refined to R = 0.052.
    Notes: Der Zweikernkomplex [(NH3)3Co · μ(OH, OH, OH) · Co(NH3)3]2(S2O6)3 kristallisiert in der monoklinen Raumgruppe P21/c mit den Gitterkonstanten a = 10.970, b = 9.412, c = 16.069 Å und β = 117.10°; in der Elementarzelle befinden sich vier Kationen und sechs Anionen. Die Struktur wurde röntgenographisch bestimmt und bis zu R = 0.052 verfeinert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754120105
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Über Reaktionen Oxygenierter Kobalt (II)-Komplexe. X. 1,4,7,10-Tetraazadecan-kobalt (II) und 4, 7-dimethyl-1,4,7,10-tetraazadecan-kobalt (II) als sauerstoffträgerIX: siehe [1].Herrn Prof. Dr. Edgardo Giovannini zu seinem 70. Geburtstag gewidmet (1979)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 62 (1979), S. 1804-1815 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reactions of oxygenated cobalt (II) complexes. X. 1,4,7,10-tetraazadecanecobalt (II) and 4,7-dimethyl-1,4,7,10-tetraazadecanecobalt (II) as dioxygen carriersIX: siehe [1].Oxygenation of cobalt (II) chelates with fourdentate amines such as 1,4,7,10-tetraazadecane (= tad) in aqueous solution yields μ-peroxo-μ-hydroxo-dicobalt (III) complexes. Due to facultative ligand disposition of the amine, 8 different diastereoisomers are possible. Introducing methyl groups in positions 4 and 7 of tad destabilizes the isomers with β-configuration. A crystallized perchlorate, obtained by oxygenation of 4, 7-dimethyl-1,4,7,10-tetraazadecanecobalt (II) (= dmtad) in alcaline solution, proved to be of the expected μ-peroxo-μ-hydroxo type. The ligand configuration is and lattice constants a (ΔΔ/ΛΛ). The X-ray structure was solved by Patterson's method and refined to R = 0.093. The crystals are orthorhombic with space group Pna21 and lattice constants a = 14.632 (4), b = 17.525 (5), c = 12.888 (5) Å. In its UV./VIS. absorption spectrum and its solution reactivity the binuclear cation is closely related to oxygenation products obtained with the chelate of unsubstituted tad. The kinetic parameters of the decomposition reaction of the μ-peroxo complexes in acidic solution are compared. The binuclear cations with 4, 7-dimethyl-1,4,7,10-tetraazadecane as ligand are generally more reactive. In slightly alcaline solution isomerization of the μ-peroxo-μ-hydroxo complexes has been observed.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19790620612
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der Metall-Schwefelstickstoff-Verbindungen. VII. Umsetzungen von [Ni(HN2S2)2] mit Glyoxal und Alkoholen (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 352 (1967), S. 225-230 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Whereas [Ni(HN2S2)2] and glyoxal react in acetone to the above-formulated new compound II, in the presence of alcohols further complexes are formed, in which one or two OH groups of II are replaced by OR groups: Methanol gives a mono-methyl ether and two optically isomeric di-ethers which, during chromatography on Al2O3, yield a further complex by elimination of methanol; ethanol reacts analogously. From [Ni(HN2S2)2], glyoxal and glycol compound VI (see „Inhaltsübersicht“) results.
    Notes: Während [Ni(HN2S2)2] und Glyoxal in acetonischer Lösung nur eine neue Verbindung bilden, entstehen bei Gegenwart von Alkoholen daneben weitere Komplexe, in denen die OH-Gruppen ganz oder teilweise veräthert sind. Mit Methanol erhält man einen mono-Methyläther und zwei optisch isomere di-Methyläther, die beim Chromatographieren an Al2O3 unter Abspaltung von Methanol einen weiteren Komplex bilden. Mit Äthanol entstehen die analogen Produkte. Aus [Ni(HN2S2)2], Glyoxal und Glycol bildet sich
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673520502
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der Metall-Schwefelstickstoff-Verbindungen. IX Die Struktur von [Ni(HN2S2)2] und [Pd(HN2S2)2] (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 363 (1968), S. 159-165 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: As further examples for [M(HN2S2)2] complexes, the structures of the Ni and Pd compound have been elucidated by means of X-ray techniques. Analogous to the Pt compound, there is a planar chelate coordination, with the HN2S2 groups in cis positions (see structure formula in “Inhaltsübersicht”).
    Notes: Aus der Reihe der Komplexe [Me(HN2S2)2] wurde die Struktur der Nickel- und der Palladium-Verbindung röntgenographisch bestimmt. Es sind, wie die früher untersuchte Platin-Verbindung, ebene Chelatkomplexe, die beiden HN2S2-Gruppen stehen in cis-Stellung.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683630308
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Kobalt-Komplexe mit O2-Brücken: Die Struktur der Kationen μ-Hydroxo-μ-peroxo-bis[bis(äthylendiamin) kobalt(III)]3+ und μ-Hydroxo-μ-superoxo-bis[bis (äthylendiamin)kobalt(III)]4+ (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 419 (1976), S. 163-170 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cobalt Complexes with O2 Bridges: The Structure of the Cations μ-Hydroxo-μ-peroxo-bis[bis(ethylenediamine) cobalt (III)]3+and μ-Hydroxo-μ-superoxo-bis [bis (ethylenediamine) cobalt (III)]4+X-ray structure determinations of one salt of each of the two chemically and structurally closely related dinuclear cobalt cations [(en)2Co · μ(OH, O2) · Co(en)2]3+ 1a and [(en)2Co · μ(OH, O2) · Co(en)2]4+ 1b have been performed. In both cases the cations exist as racemic mixtures of ΔΔ and ΔΔ isomers. The O-O distance in the μ-peroxo cation 1a is 1.465 Å and the Co-O-O-Co torsion angle is 60.7°. The corresponding values for the μ-superoxo cation 1b are 1.339 Å and 22.0°.
    Notes: An je einem Salz der beiden chemisch und strukturell in enger Beziehung zueinander stehenden zweikernigen Co(III)-Komplexkationen [(en)2Co · μ(OH, O2) · Co(en)2]3+ 1a und [(en)2Co · μ(OH, O2) · Co(en)2]4+ 1b, haben wir eine Röntgenstrukturanalyse durchgeführt. In beiden Fällen liegen Racemate von ΔΔ- und ΔΔ-Kation-Isomeren vor. Der O-O-Abstand und der Co-O-O-Co-Torsionswinkel in dem μ-Peroxo-Kation 1a sind 1,465 Å bzw. 60,7°. Die entsprechenden Werte für das μ-Superoxo-Kation 1b betragen 1,339 Å und 22,0°.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764190209
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Die Kristall- und MolekülStruktur von N,N′-Bis-(trimethylsilyl)-oximidsäure-bis(trimethylsilyl)-ester (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 420 (1976), S. 51-54 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal and Molecular Structure of N,N′-Bis(trimethylsilyl) Oximidic Acid Bis (trimethylsilyl) EsterThe X-ray structure analysis of the reaction product of oxalyl chloride with sodium bis(trimethylsilyl) amide formulated by PUMP and ROCHOW as N,N′-bis(trimethylsilyl) oximidic Acid bis (trimethylsilyl) ester shows that the suggested structure is correct for the solid state. The compound crystallizes in the space group P1 with a = 9.948(4), b = 6.612(3), c = 10.370(4) Å, α = 88.87(6), β = 116.95(4), γ = 98.23(6)°, and Z = 1. The molecule manifests symmetry 1.
    Notes: Die Röntgenstrukturanalyse des von PUMP und ROCHOW als N,N′-Bis(trimethylsilyl)-oximidsäure-bis(trimethylsilyl)-ester formulierten Reaktionsprodukts von Oxalylchlorid mit Natrium-bis(trimethylsilyl)-amid zeigt, daß diese Formulierung für den festen Zustand zutrifft. Die Verbindung kristallisiert in der Raumgruppe P1 mit a = 9,948(4), b = 6,612(3), c = 10,370(4) Å, α = 88,87(6), β = 116,95(4), γ = 98,23(6)° und Z = 1. Die Molekel besitzt die Eigensymmetrie 1.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764200106
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Die Struktur von N, N′-Bis(trimethylsilyl)-dithiooxamid (1978)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 443 (1978), S. 185-188 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Structure of N, N′-Bis (trimethylsilyl) DithiooxamideAn X-ray analysis of a compound prepared by WALTER et al. and formulated as N, N′-bis(trimethylsily1) dithiooxamide proves that the suggested structure is correct for the solid state. The compound crystallizes in the orthorhombic space group Pbcn with lattice constants a = 10.702, b = 12.485, c = 11.733 Å and Z = 4. The molecular symmetry is 1.
    Notes: Die Röntgenstrukturanalyse der von WALTER u. Mitarb. dargestellten und als N, N′-Bis(trimethylsilyl)-dithiooxamid formulierten Verbindung ergibt, daß diese Formulierung für den festen Zustand zutrifft. Die Verbindung kristallisiert in der orthorhombischen Raum-gruppe Pbcn mit den Gitterkonstanten a = 10,702, b = 12,485, c = 11,733 Å und Z = 4. Die Mole-krl besitzt die kristallographische Eigensymmetrie 1.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19784430119
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    S4N4 und seine Derivate: [Cu(CH3CN)Cl2]2S2N2, ein Übergangsmetallkomplex mit dem S2N2-Ligand (1980)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 462 (1980), S. 214-220 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: S4N4 and its Derivatives: [Cu(CH3CN)CL2]2S2N2, a Transition Metal Complex with the S2N2 LigandS4N4 reacts with CuCl2 · 2H2O in acetonitrile to give among other products the polymer copper(II) complex [Cu(CH3CN)Cl2]2S2N2, This complex crystallizes in the space group P21/c with a = 9.635(4), b = 7.270(4), c = 10.009(6) Å, β = 93.16(6)°, and Z = 2. An X-ray structure analysis (R = 0,065) shows the crystal to.contain parallel chains with copper atoms bridged by Cl and S2N2 bridges. The coordination of the Cu atom is square pyramidal. The S2N2 ring is planar. The SN bond distances are 1.633 and 1.641 Å.
    Notes: Bei der Umsetzung von S4N4 mit CuCl2 · 2H2O in Acetonitril entsteht neben anderen Produkten der polymer gebaute Kupfer(II)-Komplex [Cu(CH3CN)Cl2]2S2N2. Er kristallisiert in der Raumgruppe P21/c mit a = 9,635(4), b = 7,270(4), c = 10,009(6) Å, β = 93,16(6)° und Z = 2. Eine Röntgenetrukturanalyse (R = 0,065) ergibt, daß im Kristall parallele Ketten vorliegen, wobei die Kupferatome alternierend durch zwei Cl-Brücken und durch eine S2N2-Gruppe verknüpft sind. Die Koordination des Kupfers ist quadratisch pyramidal. Der S2N2-Ring ist eben gebaut. Die SN-Bindungsabstände betragen 1,633 und 1,641 Å.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19804620124
    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...