Library

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
  • 11
    Electronic Resource
    Electronic Resource
    Characterization of an Fe4S4 (‘P’) cluster containing species from the nitrogenase MoFe protein ofAzotobacter vinelandii (1991)
    Springer
    Naturwissenschaften 78 (1991), S. 460-462 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01134383
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    Isolation of the first crystallined-penicillamine complex of iron (1992)
    Springer
    Naturwissenschaften 79 (1992), S. 323-325 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01138712
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    Kristallstruktur von Na3(NH4)12[Mo57Fe6(NO)6O174(OH)3(H2O)24]·76H2O, einer Verbindung mit einem ungewöhnlichen Clusteranion (1994)
    Springer
    Monatshefte für Chemie 125 (1994), S. 525-533 
    Details
    ISSN: 1434-4475
    Keywords: Cluster ; Crystal structure ; Polyoxometalate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The X-ray crystal structure of the compound Na3(NH4)12[Mo57Fe6(NO)6O174(OH)3(H2O)24]·76H2O (3) [P63/mmc;a=2380.6(5),c=2763.4(7),Z=2], the giant cluster anion of which has the shape of a doughnut, shows remarkable details: The cluster [{Fe(H2O)2}6{Mo(μ-H2O)2(μ-OH)Mo}3{ Mo15(MoNO) 2 3+ O58(H2O)2}3]15− can be described as being composed of three transferable {Mo17} ligands bridged by cationic centers and contains a novel nanodimensional central cavity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811844
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    (NPr 4 n )[SRev(S4)(S3CMe 2)]: Ein [SRev(S4)2]−-Derivat (1993)
    Springer
    Monatshefte für Chemie 124 (1993), S. 857-866 
    Details
    ISSN: 1434-4475
    Keywords: Crystal structure ; Polysulfido ligands ; Synthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The preparation of (NPr 4 n )[SRe(S4)(S3CMe 2)] (1), (NPr 4 n )[SRe(S4)2] (2), (NBu 4 n )[SRe(S4)2] (3) and a new modification of (PPh 4)[SRe(S4)2] (4) are reported, including the X-ray structures of1 and4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00816408
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    Bemerkenswerte Wirt-Gast-Beziehungen in Tetraphenylphosphoniumsalzen vontris-Trithiocarbonato-Komplexen des As(III), Bi(III) und Fe(III) (1996)
    Springer
    Monatshefte für Chemie 127 (1996), S. 43-49 
    Details
    ISSN: 1434-4475
    Keywords: Trithiocarbonato complexes ; Tetraphenylphosphonium salts ; Host-guest chemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The structure and packing of the lattice of the compounds (PPh4)3[As(CS3)3] (1), (PPh4)3[Bi(CS3)3] (2), and (PPh4)3[Fe(CS3)3]·H2O (3) is discussed in terms of hostguest chemistry in a “soft” matrix of large cations. The hitherto unknown Fe-complex was characterized by elemental analysis and single crystal structure analysis. Here CS 3 2− acts as a classical bidentate ligand, whereas in the case of the arsenic and bismut complexes, the coordination of this ligand is essentially unidentate due to an interaction with the lone pair on the central atom. For the last two complexes, there seems to be an influence of the packing on the coordination geometry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00807407
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 16
    Electronic Resource
    Electronic Resource
    (PPh4)[(ReO2S2)CuI] und (NEt4)2[(ReOS3)Cu3Cl4]: Fixierung der bisher nicht isolierten Ionen [ReO2S2]- und [ReOS3]- durch Ausnutzung der Stabilität der CuS2(Re)- und Cu3S3(Re)-Fragmente (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 614 (1992), S. 115-120 
    Details
    ISSN: 0044-2313
    Keywords: Oxothioperrhenate ions, ReO2S2-, ReOS3- ; preparation ; crystal structure ; IR, UV/Vis spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: (PPh4)[(ReO2S2)CuI] and (NEt4)2[ReOS3)Cu3Cl4]: Fixation of the up to now not Isolated Ions [ReO2S2]- and [ReOS3]- Utilizing the Stability of the CuS2(Re) and Cu3S3(Re) Fragments(PPh4)[(ReO2S2)CuI] (1) and (NEt4)2[ReOS3)Cu3Cl4] (2) containing the up to now not isolated oxothioperrhenate ions [ReO2S2]- and [ReOS3]- as ligands, have been prepared by the reaction of (NEt4)[ReS4] with PPh3 and CuI in acetone in the presence of (PPh4)I ((1)) or with CuCl in CH2Cl2 in the presence of (NEt4)Cl ((2)), respectively. 1 and 2 have been characterized by X-ray structure analysis, elemental analysis and spectroscopic studies (IR, UV/Vis). The electronic spectra show bands which can approximately be assigned to interesting low-energy charge-transfer-transitions of the type d(Cu) → d(Re).For crystal data see Inhaltsübersicht.
    Notes: (PPh4)[(ReO2S2)CuI] (1) und (NEt4)2[(ReOS3)Cu3Cl4] (2), die die bisher nicht isolierten Oxothioperrhenat-Ionen [ReO2S2]- und [ReOS3]- als Liganden enthalten, wurden durch Reaktion von (NEt4)[ReS4] mit PPh3 und CuI in Aceton in Gegenwart von (PPh4)I ((1) bzw. entsprechend mit CuCl in CH2Cl2 in Gegenwart von (NEt4)Cl ((2) erhalten. 1 und 2 wurden durch Einkristall-Röntgenstrukturanalyse, Elementaranalyse, sowie spektroskopische Untersuchungen (IR, UV/Vis) charakterisiert. In den Elektronenspektren findet man Banden, die interessanten niederenergetischen Charge-Transfer-Übergängen des Typs d(Cu) → d(Re) näherungsweise zugeordnet werden können.Kristalldaten: 1P21/n, a = 1162,2(4), b = 1395,7(6), c = 1612,3(9)pm, β = 96,53(4)° V = 2598(2) · 106pm3, R = 0,049 für 4623 unabhängige Reflexe (F0≥4,0σ(F0)).2C2/c, a = 2059,0(5), b = 1352,9(3), c = 2217,1(5)pm, β = 90,26(22)° V = 6176(2) · 106pm3, R = 0,080 für 3162 unabhängige Reflexe (F0≥4,0σ(F0)).
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926140820
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 17
    Electronic Resource
    Electronic Resource
    Penicillamin-Komplexe des Nickels, Chroms und Molybdäns  -  Strukturelle Besonderheiten und biologische/medizinische Relevanz (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1037-1046 
    Details
    ISSN: 0044-2313
    Keywords: Nickel ; chromium ; molybdenum ; penicillamine ; complexes ; synthesis ; crystal structure ; antidot ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Penicillamine Complexes of Nickel, Chromium, and Molybdenum  -  Structural Particularity and Biological/Medical RelevanceThe compounds Tl2[NiII(H2O)6][NiII(D-pen)(L-pen)]2[NiII(SCN)2(H2O)4] 1, Tl[NiII(D-pen)2H] · H2O 2, Tl[CrIII(D-pen)2] 3, and Na2[Mo2VO4(pen)2] · 3 CH3OH · 3 H2O 4 have been prepared by the reaction of nickel nitrate (for 1), nickel acetate (for 2), potassium chromate (for 3), and sodium molybdate (for 4) with D- and D, L-penicillamine, respectively. They were characterized by single-crystal X-ray structure analysis and other physical methods. Whereas penicillamine acts as a bidentate (N, S)-ligand in 1 and 2, CrIII (in 3), and MoV (in 4) are coordinated to the three ligand atoms N, O, and S. The presence of three different types of NiII-complexes a cationic, a neutral, and an anionic one in 1 is remarkable.For crystal data see Inhaltsübersicht.
    Notes: Die Verbindungen Tl2[NiII(H2O)6][NiII(D-Pen)(L-Pen)]2[NiII(SCN)2(H2O)4] 1, Tl[NiII(D-Pen)2H] · H2O 2, Tl[CrIII(D-Pen)2] 3 und Na2[Mo2VO4(Pen)2] · 3 CH3OH · 3 H2O 4 wurden durch Umsetzung von Nickelnitrat (für 1), Nickelacetat (für 2), Kaliumchromat (für 3) und Natriummolybdat (für 4) mit D- bzw. D, L-Penicillamin in wäßriger Lösung dargestellt und durch Einkristallstrukturanalyse und andere physikalische Methoden charakterisiert. Während in den Ni-Pen-Komplexen von 1 und 2 Penicillamin als zweizähniger Ligand (N, S) fungiert, sind CrIII in 3 und MoV in 4 über N, O und S koordiniert. Bemerkenswert ist, daß in 1 drei verschiedene Ni-Komplexe und zwar ein kationischer, ein neutraler und ein anionischer in einer Elementarzelle vorliegen.1: C2/m, a = 1 484,6(4), b = 1 358,7(4), c = 1 204,7(3) pm, β = 103,75(2)°, V = 2 360,4(11) ° 106 pm3, R = 0,042 für 1 633 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 2.2: C2, a = 2 279,9(7), b = 613,1(1), c = 1 275,2(3) pm, β = 110,94(2)°, V = 1 664,8(6) · 106 pm3, R = 0,056 für 1 413 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 4.3: C2, a = 2 054,0(3), b = 592,1(1), c = 606,7(1) pm, β = 92,89(1)°, V = 736,95(17) · 106 pm3, R = 0,028 für 862 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 2.4: P1, a = 996,2(4), b = 1 222,2(7), c = 1 395,3(7) pm, = 114,27(4), β = 104,55(4), γ = 95,63(4)°, V = 1 459,4(13) · 106 pm3, R = 0,072 für 3 763 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 2.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190614
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 18
    Electronic Resource
    Electronic Resource
    New Perspectives in Polyoxometalate Chemistry by isolation of compounds containing very large moieties as transferable building blocks: (NMe4)5[As2Mo8V4AsO40] · 3H2O, (NH4)21[H3Mo57V6(NO)6O183(H2O)18] · 65 H2O, (NH2Me2)18(NH4)6[Mo57V6(NO)6O183(H2O)18] · 14 H2O, and (NH4)12[Mo36(NO)4O108(H2O)16] · 33 H2O (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 599-619 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Neue Perspektiven in der Polyoxometallatchemie durch Isolierung von Verbindungen mit sehr großen übertragbaren Baueinheiten: (NMe4)5[As2Mo8V4AsO40] · 3H2O, (NH4)21[H3Mo57V6(NO)6O183(H2O)18] · 65 H2O, (NH2Me2)18(NH4)6[Mo57V6(NO)6O183(H2O)18] · 14 H2O und (NH4)12[Mo36(NO)4O108(H2O)16] · 33 H2ODie Verbindungen (NMe4)5[As2Mo8V4AsO40] · 3 H2O 2a, (NH4)21[H3Mo57V6(NO)6O183(H2O)18] · 65 H2O 3a, (NH2Me2)18(NH4)6[Mo57V6(NO)6O183(H2O)18] · 14 H2O 3b und (NH4)12[Mo36(NO)4O108(H2O)16] · 33 H2O 4a (3a und 4a sind in der Literatur bezüglich ihrer Zusammensetzung, Strukturen und der Oxidationszustände der Metallzentren nicht korrekt beschrieben worden), die zum Teil extrem große isolierte anionische Spezies enthalten, wurden dargestellt (darunter 3a, 3b und 4a in relativ hoher Ausbeute) und durch vollständige Kristallstrukturanalyse sowie durch IR-/Raman-, UV/VIS/NIR- und ESR-spektroskopische Methoden sowie mit Hilfe von vorläufigen magnetischen Suszeptibiltätsmessungen, Redoxtitrationen, Bindungsvalenzsummierungen, Elementaranalysen und thermogravimetrischen Studien charakterisiert. Perspektiven hinsichtlich der Synthese besonders großer nanodimensionierter Spezies werden im Zusammenhang mit den, in den Verbindungen 3a, 3b und 4a auftretenden, großen übertragbaren {Mo17} Baueinheiten diskutiert. Diese {Mo17} Baueinheit ist auch am Aufbau der Verbindung Na3(NH4)12[H15Mo57Fe6(NO)6O183(H2O)18] · 76 H2O 7a beteiligt.
    Notes: The compounds (NMe4)5[As2Mo8V4AsO40] · 3 H2O 2a, (NH4)21[H3Mo57V6(NO)6O183(H2O)18] · 65 H2O 3a, (NH2Me2)18(NH4)6[Mo57V6(NO)6O183(H2O)18] · 14 H2O 3b and (NH4)12[Mo36(NO)4O108(H2O)16] · 33 H2O 4a (3a and 4a were not correctly reported in the literature regarding to their composition, structures and the oxidation states of the metal centres) which contain large isolated anionic species, have been prepared (among them 3a, 3b, and 4a in rather high yield) and characterized by complete crystal structure analysis as well as IR/Raman, UV/VIS/NIR, ESR spectroscopy and magnetic susceptibility measurements, redox titrations, bond valence sum calculations, elemental analyses and thermogravimetric studies. Perspectives for polyoxometalate chemistry referring to the synthesis of “extremely” large nanoscaled species are discussed, together with the occurrence of a large transferable {Mo17} building block in the compounds 3a, 3b and 4a which also exists in the corresponding iron compound Na3(NH4)12[H15Mo57Fe6(NO)6O183(H2O)18] · 76 H2O 7a.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200405
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 19
    Electronic Resource
    Electronic Resource
    Heterometall-Komplexe mit Dithiometallaten des Typs [M′(MO2S2)2]2- (M = Mo, W; M′ = Co, Ni); Darstellung und spektroskopische Eigenschaften (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 483 (1981), S. 69-74 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Heterometal Complexes with Dithiometallates of the Type [M′(MO2S2)2]2- (M = Mo, W; M′ = Co, Ni); Preparation and Spectroscopic PropertiesThe preparation of R2[Co(MoO2S2)2], R2[Co(WO2S2)2], R2[Ni(MoO2S2)2], and R2[Ni(WO2S2)2] (R = [(C6H5)4P]) is described in detail. The compounds can be isolated under certain conditions inspite of the instability of the dithiometallates in solution. The i. r. and electronic absorption spectra as well as the reversible redox behaviour (from preliminary CV data) are discussed in relation to the molecular and electronic structure of the complexes.
    Notes: Die Darstellung der Verbindungen R2[Co(MoO2S2)2], R2[Co(WO2S2)2], R2[Ni(MoO2S2)2] und R2[Ni(WO2S2)2] (R = [(C6H5)4P]) wird detailliert beschrieben. Die Substanzen lassen sich unter Einhaltung bestimmter Versuchsbedingungen trotz der Instabilität der Dithiometallate in Lösung rein isolieren. Die IR- und Elektronenabsorptionsspektren sowie das reversible Redoxverhalten (vorläufige CV-Daten) werden im Zusammenhang mit der Molekül- und Elektronenstruktur der komplexen Anionen diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814831209
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 20
    Electronic Resource
    Electronic Resource
    Über [Ag(S9)]-, ein symmetrisches zehngliedriges Ringsystem Darstellung, Struktur und spektroskopische Charakterisierung der schwefelreichen Verbindung [(PPh3)2N][Ag(S9)] · S8 (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 534 (1986), S. 69-76 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About [Ag(S9)]-, a Symmetric Ten-Membered Ring System; Preparation, Structure, and Spectroscopic Characterization of the Sulfur Rich Compound [(PPh3)2N][Ag(S9)] · S8Orange [(PPh3)2N][Ag(S9)] · S8 (1) could be obtained by reaction of a definite Sx2--solution with AgNO3 and characterized by vibrational spectra (IR/Raman) and X-ray structure analysis. The anion [Ag(S9)]- shows a symmetric conformation of a ten-membered ring system. 1 crystallizes in the triclinic space group P1 (a = 1383.8(4), b = 1429.5(4), c = 1540.5(5) pm, α 62.38(2), β 68.05(2), γ 65.86(2)°, V = 2399.1 · 106 pm3, Z = 2; R = 0.077 for 5433 independent reflections (F0 〉 3.92 σ(F0))).
    Notes: Orangefarbenes [(PPh3)2N][Ag(S9)] · S8 (1) wird durch Umsetzung einer definierten Sx2--Lösung mit AgNO3 dargestellt und durch Schwingungsspektren (IR/Raman) sowie Kristallstrukturanalyse charakterisiert. Das [Ag(S9)]--Anion weist eine symmetrische Konformation eines zehngliedrigen Ringsystems auf. 1 kristallisiert triklin in der Raumgruppe P1 (a = 1383,8(4), b = 1429,5(4), c = 1540,5(5) pm, α 62,38(2), β 68,05(2), γ = 65,86(2)°, V = 2399,1 · 106 pm3, Z = 2; R = 0,077 für 5433 unabhängige Reflexe (F0 〉 3,92 σ(F0))).
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865340309
    Library Location Call Number Volume/Issue/Year 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...