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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Silicon Sulfur Compounds. XXXVIII. Hexa(tri-t-butoxy)disiloxane and Hexa(tri-t-butoxy)disilthianeHexa(tri-t-butoxy)disiloxane 1 and Hexa(tri-t-butoxy)disilthiane 2 were prepared by reaction of R3SiONa with R3SiCl and R3SiSNa with R3SiCl (R = tri-t-butoxy), respectively. The mass spectra show characteristic series of fragments. A large 29Si n.m.r. chemical shift of about  - 103.55 ppm is observed with 1, whereas the value of 2 is  - 75.99 ppm. The crystal structure analysis of 1 result first in a colinear molecule (Si—;O—;Si = 180°) with 1 symmetry and relative short mean bond lengths of about d(Si—;O) = 155.6 pm, but with large and strong anisotropic ellipsoids. Their quantitative rigid body analyses yield decisive corrections, namely a bent molecule with an Si—;O—;Si angle of 144.0° and d̄corr = 163.5 pm. Molecule 2 is also bent as expected (Si—;S—;Si = 110.5°, d̄(Si—;S) = 211.9 pm and after rigid body correction 108.0° and dcorr = 215.2 pm, respectively). The results of our investigations will be discussed corresponding to the energy differences of the varying configurations at the bridging atoms.
    Notes: Hexa(tri-t-butoxy)disiloxan 1 bzw. hexa(tri-t-butoxy)disilthian 2 werden beim Umsatz von R3SiONa mit R3SiCl bzw. von R3SiSNa mit R3SiCl erhalten (R = tri-t-butoxy). Die Massenspektren ergeben charakteristische Serien von Bruchstücken. Das 29Si-NMR-Spektrum von 1 weist eine große chemische Verschiebung von  - 103,55 pm auf, während für 2 diese Verschiebung  - 75,99 ppm beträgt. Die Kristallstrukturanalyse von 1 ergab zunächst ein lineares Molekül (Si—;O—;Si = 180°) mit l̄1-Symmetrie und kurzen mittleren Bindungsabständen d(Si—;O) = 155,6 pm, jedoch mit großen und stark anisotropen thermischen Ellipsoiden. Deren quantitative Analyse im Modell starrer Körper erbrachte dann entscheidende Korrekturen, nach denen tatsächlich ein gewinkeltes Molekül mit Si—;O—;Si = 144,0° und d̄korr = 163,5 pm vorliegt. Auch Molekül 2 ist (erwartungsgemäß) gewinkelt mit Si—;S—;Si = 110,5° und d̄(Si—;S) = 211,9 pm bzw. nach Korrektur auf die thermische Bewegung als starrer Körper 108,0° und 215,2 pm. Die Ergebnisse werden im Zusammenhang mit den Energiedifferenzen der verschiedenen Konfigurationen an den Brückenatomen diskutiert.
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  • 2
    ISSN: 0044-2313
    Keywords: Polyphosphides ; Zintl-phases M3X11 (M = Na, K, Rb, Cs; X = P, As) ; P113-, As113- cage anion ; preparation ; vibrational spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemistry and Structural Chemistry of Phosphides and Polyphosphides. 53. Preparation, Properties, and Vibrational Spectra of the Cage Anions P113- and As113-The Zintl-phases M3X11 (M = Na, K, Rb, Cs; X = P, As) are prepared from the elements or from M3X7 and X. The compounds undergo a first-order phase transition from the crystalline to the plastically crystalline state. Unit cell and space group of both modifications and the transition temperature Tc are determined. The vibrational spectra of the crystalline compounds and the Raman spectrum of the P113- anion in en-solution as well are measured. The assignment of the frequencies is given, based on the 32-D3 symmetry of the X113- cage anion. Normal coordinate analysis is carried out in terms of Cartesian coordinates to avoid the problem of redundancies in using internal coordinates. The force constants [mdyn Å-1] obtained for the characteristic bonds r, s, and t are: fppr = 1.34, fpps = 1.20, fppt = 1.08; fAsAsr = 1.1, fAsAss = 0.91. Normal vibrations and the potential energy distribution (PED) are discussed.
    Notes: Die Zintl-Phasen M3X11 (M = Na, K, Rb, Cs; X = P, As) werden aus den Elementen oder aus M3X7 und X synthetisiert. Die Verbindungen durchlaufen einen Phasenübergang 1. Ordnung vom kristallinen zum plastisch-kristallinen Zustand. Elementarzelle und Raumgruppe beider Modifikationen sowie Übergangstemperaturen Tc wurden bestimmt. Die Schwingungsspektren der kristallinen Verbindungen sowie das Raman-Spektrum des Anions P113- in en-Lösung wurden gemessen. Die Zuordnung der Schwingungsfrequenzen gelingt auf der Basis der Symmetrie 32-D3 der Käfiganionen X113-. Die Normalkoordinatenanalyse erfolgte in kartesischen Koordinaten, wodurch das in inneren Koordinaten auftretende Redundanzproblem vermieden wird. Auf diesem Wege erhaltene Kraftkonstanten [mdyn Å-1] der charakteristischen Bindungen r, s und t sind: fppr = 1, 34, fpps = 1, 20, fppt = 1, 08; fAsAsr = 1, 1, fAsAss = 0, 96, fAsAst = 0, 91. Die Normalschwingungen und die Verteilung der potentiellen Energie (PED) werden diskutiert.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 608 (1992), S. 131-134 
    ISSN: 0044-2313
    Keywords: Tetrahetero-tetrahedrane anions ; G44-, Sn44; ; infrared, Raman spectra; ; internal vibrations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Internal Vibration of the Tetrahetero-Tetrahedrane Anions Ge44-, Sn44-, and Pb44The Frequencies of the internal vibrations ν1 (A1), ν2(E), ν3(T2) of the tetrahetero-tetrahedrane an ions Ge44- and Sn44- are determined from the infrared and Raman spectra of K7LiGe8 and KSn, respectively. A comparison of the characteristic vibration of tetrahedrane anions X44- (X = Si, Ge, Sn)and the isoelectronic neutral tetrahedranes Y4 of the neighbouring elements (Y = P, As, Sb) shows a rather constant ratio of the corresponding frequencies k = v˜(X44-) = 0,77. This allows for an estimate of v˜(Pb44-) from the known Bi4data. In the inflated spectrum of KPb bands are observed in the predicted frequency range.
    Notes: Aus den Infrarot-und Raman-Spektren von K7LiGe8 und KSn werden die Frequenzen der inneren Schwingungen ν1(A1), ν2(E) und ν3(T3) der Tetrahetero-Tetrahedran -Anionen Ge44- und Sn44- bestimmt. Der Vergleich der charakteristischen Schwingungen von Tetrahedran-Anionen X44-(X = Si, Ge, Sn) und isoelektronischen neutralen Tetrahedranen Y4 der Nachbarelemente (Y = P,As, Sb)ergibt ein nahezu konstantes Verhältnis für die einander entsprechenden Frequenzen k = v˜(X44-)/v˜(Y4) = 0,77. Damit werden aus den Frequenzen v˜(Bi4) Werte für v˜(Pb44-) abgeschätzt, welche mit Banden im Infrarot-Spektrum von KPb übereinstimmen.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 771-774 
    ISSN: 0044-2313
    Keywords: Zirconocene complexes ; crystal structure cyclopentadienyl compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Molecular Structure of [1,3-(Me3Si)2C5H3](Me3SiC5H4)ZrCl2.The unsymmetrically substituted zirconocene dichloride was prepared by reaction of trimethylsilylcyclopentadienyl lithium and 1,3-bis(trimethylsilyl)cyclopentadienyl lithium with ZrCl4 · 2 THF. The molecular structure was determined (P21/a; a = 1 357.9, b = 1 900.0, c = 1 043.2 pm, β = 105,16°). The Zr—Cl distance are remarkably short.
    Notes: Das unsymmetrisch substituierte Zirconocendichlorid entsteht aus (Trimethylsilyl-cyclopentadienyl)lithium und 1,3-[Bis(trimethylsilyl)cyclopentadienyl]lithium mit ZrCl4 · 2 THF. Die Molekülstruktur wurde ermittelt (P21/a; a = 1 357,9, b = 1 900,0, c = 1 043,2 pm, β = 105,16°), auffallend sind kurze Zr—Cl-Abstände.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 377-384 
    ISSN: 0044-2313
    Keywords: One-pot reactions of tri-t-butoxychlorosilane, K-t-butanolate and substituted anilines. Crystal structure analyses of N-(tri-t-butoxysilyl)-aniline, C18H33NO3Si ; N-(tri-t-butoxysilyl)-p-nitroaniline, C18H32N2O5Si ; N-Methyl-(N-tri-t-butoxysilyl)-p-nitroaniline C19H34N2O5Si ; N-(tri-t-butoxysilyl)-p-cyanoaniline, C19H32N2O3Si ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation and Structures of N-(tri-t-butoxysilyl)aniline CompoundsPara-substituted N-(tri-t-butoxysilyl)anilines (t-BuO)3SiNRC4H4X-p, R = H, CH3, with substituents of high electron affinity (X = CN, NO2) were prepared by a one-pot reaction of tri-t-butoxychlorsilane, potassium t-butanolate and substituted anilines. Corresponding compounds with substituents of low electron affinity (X = OMe, H) preferably were prepared by metalation of anilines with sodium amide. Four crystal structures were determined. N-(tri-t-butoxysilyl)-p-nitro-aniline, N-methyl-(N-tri-t-butoxysilyl)-p-nitroaniline and N-(tri-t-butoxysilyl)-p-cyanoaniline crystallize at 298 K monoclinically, N-(tri-t-butoxysilyl)aniline crystallizes orthorhombically.
    Notes: Derivate des para-substituierten N-(Tri-t-butoxysilyl)anilins (t-BuO)3SiNRC6H4X-p, R = H, CH3 mit Substituenten hoher Elektronenaffinität (X = CN, NO2) wurden nach einem neuen Eintopfverfahren aus Tri-t-butoxychlorsilan, Kalium-t-butanolat und dem entsprechend substituierten Anilin dargestellt. Für Substituenten niederer Elektronenaffinität (X = OMe, H) wird die Methode der Metallierung von Anilinen mit Natriumamid bevorzugt. Vier Kristallstrukturen wurden bestimmt. N-(Tri-t-butoxysilyl)-p-nitroanilin, N-Methyl-(N-tri-t-butoxysilyl)-p-nitroanilin und N-(Tri-t-butoxysilyl)-p-cyanoanilin kristallisieren bei 298 K monoklin, N-(Tri-t-butoxysilyl)anilin kristallisiert orthorhombisch.
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  • 6
    ISSN: 0044-2313
    Keywords: Carbosilanes ; Cu-catalyzed reactions of silicon with C-chlorinated 1,1,3,3,5,5-hexachloro-1,3,5-trisilacyclohexanes ; crystal structures of hexadecachloro-1,3,5,7,9,11,13,14-octasiladispiro[5.1.5.1]tetradecane ; decachloro-1,3,5,7,9,11-hexasilatricyclo[6.4.0.02,7]dodecane and decachloro-2-trichlorosilyl-1,3,5,7,9,11-hexasilatricyclo[6.4.0.02,7]dodecane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation of Organosilicon Compounds 113. Reactions of C-chlorinated 1,1,3,3,5,5-Hexachloro-1,3,5-trisilacyclohexanes with Si(Cu cat.). Structures of Hexadecachloro-1,3,5,7,9,11,13,14-octasiladispiro[5.1.5.1]tetradecane 12, Decachloro-1,3,5,7,9,11-hexasilatricyclo[6.4.0.02,7]dodecane 13 and Decachloro-2-trichlorosilyl-1,3,5,7,9,11-hexasilatricyclo[6.4.0.02,7]dodecane 14Elemental Si(Cu cat.) was treated with 1,1,2,2,3,3,5,5-octachloro-1,3,5-trisilacyclohexane 3, 1,1,2,2,3,3,4,4,5,5-decachloro-1,3,5-trisilacyclohexane 4 and with (Cl2Si—CCl2)3 5, resp., in a stirred bed reactor at 330°C. The products can be understood as to be formed by silylation, hydrogenation, degradation, rearrangement and condensation reactions all of them starting from the CCl2 groups of the trisilacyclohexanes. Especially remarkable is Si8C6H8Cl16 12 with a C-spiro linked framework formed by a trisilacyclohexane, a disilacyclobutane and another trisilacyclohexane building block. In two further tricyclic carbosilanes Si6C6H10Cl10 13 and Si7C6H9Cl13 14, two trisilacyclohexane rings each share an opposite Si—C bond with a disilacyclobutane. Another group of compounds includes compounds consisting of two 1,3,5-trisilacyclohexane rings linked by either a C=C or a C=C=C unit. Moreover some derivatives of 1,3-disilacyclopentenes are formed obviously by a contraction of the C-chlorinated 1,3,5-trisilacyclohexane rings. Compound 12 crystallizes in the monoclinic space group P21/n (no. 14) with a = 1 307.8, b = 1 184.2, c = 984.4 pm, β = 93.58° and Z = 2 molecules per unit cell. 13 crystallizes in the triclinic space group P1 (no. 2) with a = 885.7, b = 911.6, c = 868.3 pm, α = 113.15°, β = 75.36° γ = 119.22° and Z = 1. 14 crystallizes in the monoclinic space group P21/c (no. 14) with a = 1853.2, b = 912.9, c = 1725.3 pm, β = 112.69° and Z = 4.
    Notes: 1,1,2,2,3,3,5,5,-Octachlor-1,3,5-trisilacyclohexan 3, 1,1,2,2,3,3,4,4,5,5-Decachlor-1,3,5-trisilacyclohexan 4 und (Cl2Si—CCl2)3 5 wurden mit Si(Cu) bzw. Cu im Rührbett bei 330°C umgesetzt. Die Reaktionen gehen von den CCl2-Gruppen der Trisilacyclohexane aus, und die verschiedenen Reaktionsprodukte sind durch Silylierung, Hydrierung, Kondensation und Umlagerung zu erklären. Besonders bemerkenswert ist das Si8C6H8Cl16 12, in dessen Grundgerüst zwei 1,3,5-Trisilacyclohexane über einen Disilacyclobutanring C-spiroverbrückt sind. In zwei tricyclischen Carbosilanen, Si6C6H10Cl10 13 und Si7C6H9Cl13 14, sind zwei Trisilacyclohexane über einen Disilacyclobutanring verbunden, der unter Ausbildung von zwei Si—C-Bindungen zwischen gegenüberliegenden SiCl- und CCl-Gruppen aufgebaut ist. Eine weitere Gruppe enthält Verbindungen, in denen zwei 1,3,5-Trisilacyclohexanringe entweder über eine C=C- oder C=C=C-Gruppe verbunden sind. Es entstehen auch 1,3-Disilacyclopentenderivate, deren Bildung auf eine Ringverengung der C-chlorierten 1,3,5-Trisilacyclohexane zurückgeführt wird. Verbindung 12 kristallisiert monoklin in der Raumgruppe P21/n (Nr. 14) mit a = 1 307,8, b = 1 184,2, c = 984,4 pm, β = 93,58° und Z = 2 Molekülen pro Elementarzelle; 13: triklin in der Raumgruppe P1 (Nr. 2) mit a = 885,7, b = 911,6, c = 868,3 pm, α = 113,15°, β = 75,36°, γ = 119.22° und Z = 1; 14: monoklin in der Raumgruppe P21/c (Nr. 14) mit a = 1 853,2, b = 912,9, c = 1 725,3 pm, β = 112.69° und Z = 4.
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  • 7
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The VIS-laser irradiation of enol lactones 1a, b and benzoquinone in an argon atmosphere led to the fenestrane-type oxetane 2a and the propellane-type oxetane 2b, with regioselective preference for the acetal structure. Under an oxygen atmosphere both regioisomeric fenestrane-type 1,2,4-trioxanes 4a and 5a were obtained from enol lactone 1a, while no oxygen trapping to the propellane-type trioxanes was observed with 1b. Significant quantities of photooxygenation products were obtained from both enol lactones 1a, b due to singlet oxygen derived from oxygen quenching of benzoquinone triplets. The present study demonstrates that Qinghaosu analoga are accessible via trapping of Paterno-Büchi triplet 1,4-diradicals by molecular oxygen.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 523 (1985), S. 169-179 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Silicon Sulfur Compounds. XXXII. The Structure of Spiro-bis (ethylendithia) silaneThe reaction between sodium methylene dimercaptide with SiCl4 yielded spiro-bis (ethylendithia)silane. The colorless title compound crystallizes monoclinically with Z = 4 molecules per elementary cell (space group C2/c; a = 1058.4, b = 950.7, c = 1011.9 pm, β = 120.07°; 902 observed unique reflections, R = 0.026). The 4, 4-spiro system nearly is of 222-D2 symmetry. The twisted five-membered rings as well as the deformation of the spiro angle (ε = 74.4°) result in the deviation from mm2-C2 symmetry. The mean bond length [d(Si—S) = 211.6pm] was found to be very short. Comparative MNDO/1-calculations of the molecule and for some ortho-acids give no energy minimum for the observed configuration (ε = 74.4°) but show a reduction of the torsional potential to energies comparable to van der Waals interactions, which are caused at the spiro silicon atom by the twisted 5-membered rings.
    Notes: Spiro-bis(ethylendithia)silan wurde durch Umsetzung von Natrium-ethylendimercaptid mit SiCl4 erhalten. Die farblose Verbindung kristallisiert monoklin mit Z = 4 Molekülen pro Elementarzelle (Raumgruppe C2/c; a = 1058,4 pm; b = 950,7 pm; c = 1011,9 pm; β = 120,07°; 902 Reflexe; R = 0,026). Das aus zwei Fünfringen gebildete Spirosystem besitzt angenähert die Symmetrie 222-D2. Die Abweichungen von der Symmetrie mm2—C2v resultieren aus der Verdrillung der Fünfringe (Twist-Konformation) und einer bemerkenswerten Deformation am Spiro-Siliciumatom (Spirowinkel ε = 74,4°). Die Bindungsabstände d(Si—S) sind mit 211,6 pm sehr kurz. Vergleichende MNDO/1-Rechnungen am Molekül und an einigen Orthosäuren zeigen kein Energiemininum für die beobachtete Konfiguration (ε = 74,4°), jedoch eine Verringerung der Torsionsenergie auf Beträge der van der Waals-Wechselwirkungen durch die Beteiligung verdrillter Fünfring am Spiro-Siliciumatom.
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  • 9
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemistry and Structural Chemistry of Phosphides and Polyphosphides. 42. Trilithiumheptaphosphide Li3P7: Preparation, Structure, and PropertiesTrilithium heptaphosphide, Li3P7, has been prepared by reaction of the elements at 870 K in Nb and Ta ampoules, respectively. The bright yellow (solventfree) substance crystallizes in a new structure type (P212121; a = 974.2(1) pm; b = 1053,5(1) pm; c = 759,6(1) pm; Z = 4). The structure is closely related to the plastically crystalline Rb3P7 type of structure (Li3Bi variant). The heptaphosphanortricyclene anions P73- are surrounded by 12 Li cations and connected one to each other in a complex manner. The anion exhibits a differentation of distances and angles typical for ionic nortricyclenes X73- (P—P distances: d̄(basis) = 224.9 pm; d̄(basis-bridge) = 214.7 pm; d̄(bridge-bridgehead) = 217.6 pm). The distances Li to P are in the range of 250 ≤ d(Li—(2b)P-) ≤ 270 pm. The P—P and Li—P bond distances are equivalent to meaningful Pauling bond orders PBO. On heating in closed ampoules, Li3P7 shows an endothermic effect at 900 K, corresponding to a first order phase transition into a HT phase of unknown nature up to now. On thermal decomposition no congruent dissociative sublimation occurs in contrast to the other heptaphosphides M3P7, but LiP and Li3P are formed, the latter evaporates congruently dissociative, Solutions of Li3P7 in en show valence fluctuation of the P73- anions already at room temperature (δ 31P-NMR = - 122.1). Further reactions of Li3P7 are reported as well as the structural differences between Li3P7 and the solvates Li3P7solv3 are discussed.
    Notes: Trilithiumheptaphosphid, Li3P7, wird durch Umsatz der Elemente bei 870 K in Nb- bzw. Ta-Ampullen erhalten. Die leuchtend gelbe (solvensfreie) Substanz kristallisiert in einem neuen Strukturtyp (P212121; a = 974,2(1) pm; b = 1053,5(1) pm; c = 759,6(1) pm; Z = 4). Die Struktur hat enge Beziehung zu den plastisch-kristallinen Phasen vom Rb3P7-Typ (Li3Bi-Variante). Die Heptaphosphanortricyclen-Anionen P73- sind jeweils von 12 Li-Kationen umgeben und in komplexer Weise miteinander verknüpft. Das Anion zeigt die für ionische Nortricyclene X73- typische Differenzierung von Abständen und Winkeln (P—P-Abstände: d̄(Basis) = 224,9 pm; d̄(Basis-Brücke) = 214,7 pm und d̄(Brücke-Spitze) = 217,6 pm). Die Abstände Lithium-Phosphor liegen im Bereich 250 ≤ d(Li—(2b)P-) ≤ 270 pm. Den Bindungsabständen P—P und Li—P entsprechen sinnvolle Pauling-Bindungsordnungen PBO. Li3P7 zeigt beim Erhitzen in geschlossenen Ampullen einen thermischen Effekt bei 900 K, der einem Phasenübergang 1. Ordnung in eine noch unbekannte HT-Phase entspricht. Beim thermischen Abbau erfolgt keine kongruente dissoziative Sublimation wie bei den anderen Heptaphosphiden M3P7, sondern Zersetzung zu LiP bzw. Li3P, welches dann kongruent dissoziativ verdampft. Lösungen von Li3P7 in en zeigen schon bei Raumtemperatur Valenzfluktuation des P73--Anions (δ31P-NMR = -122,1). Über weitere Umsetzungen von Li3P7 wird berichtet. Die strukturellen Unterschiede zwischen Li3P7 und Solvaten Li3P7solv3 werden diskutiert.
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  • 10
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation and Structure of tert-Butyl(tert-butylamino) [tris(tert-butyloxy)silylthio]-boraneThe smooth addition of the SH bond of (tBuO)3SiSH to the BN bond of tBuB≡NtBu gives the title compound, which crystallizes in the triclinic system, space group P1, with an unexpectedly short BN bond, d(BN) = 137 pm, in a Z configuration.
    Notes: Die SH-Bindung von (tBuO)3SiSH addiert sich glatt an die BN-Bindung von tBuB≡NtBu unter Bildung der Titelverbindung. Diese kristallisiert triklin, Raumgruppe P1, mit einer unerwartet kurzen, Z-konfigurierten BN-Bindung, d(BN) = 137 pm.
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