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  • Inorganic Chemistry  (9)
  • Atomic, Molecular and Optical Physics
  • Surface physics, nanoscale physics, low-dimensional systems
  • 42.75
  • 1975-1979  (10)
Collection
Keywords
Publisher
Year
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 12 (1977), S. 805-811 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The PCILO method was used to study systems with the following types of intermolecular hydrogen bonds, involving 2nd row atoms: N…H—S, S…H—S, N…H—Cl, Cl…H—F, Cl…H—Cl, P…H—N, P…H—P, P…H—F, S…H—F.In all the cases calculated, the PCILO method yields an accurate qualitative description of the stabilization energies and to some extent quantitatively good agreement with reliable ab initio and experimental results. The corresponding equilibrium distances are in almost all cases smaller (up to 0.6 Å) than the ab initio values of the same compounds.
    Additional Material: 2 Ill.
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  • 2
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluorine Exchange in Trifluorophosphine Metal Complexes. IX1. (Reactions of Tetrakis(trifluorophosphine)nickel(0) with Alkyl(trimethylsilyl)amines and Amides2)Alkylaminodifluorophosphine complexes Ni(PF3)4-n(PF2NHR)n (n = 1, 2, 3) 8-11 and Me3SiF are obtained, if alkyl(trimethylsilyl)amines NHR(SiMe3) (R=CH3 and n-C4H9) are reacted with Ni(PF3)4 (1). The mechanism of these peripheric reactions is discussed by assuming a four centered type intermediate. However reactions of 1 with the lithium amides LiNR(SiMe3) (R = CH3, C2H5, n-C4H9, and C6H5) yield LiF and the difluorotrimethylsilylaminophosphine complexes Ni(PF3)4-n[PF2NR(SiMe3)]n (n = 1, 3, 4) 12-18.
    Notes: Ni(PF3)4 (1) reagiert mit Alkyl(trimethylsilyl)aminen NHR(SiMe3) (R=CH3 und n-C4H9) unter Me3SiF-Abspaltung zu den Alkylaminodifluorphosphinkomplexen Ni(PF3)4-n(PF2NHR)n (n = 1, 2 und 3) 8-11. Der Reaktionsablauf wird anhand eines Vierzentren-Synchron-Mechanismus diskutiert. Hingegen liefern die Lithiumamide LiNR(SiMe3) (R=CH3, C2H5, n-C4H9 und C6H5) mit 1 unter LiF-Abspaltung die Organyl(trimethylsilyl)-aminodifluorphosphinkomplexe Ni(PF3)4-n[PF2NR(SiMe3)]n (n = 1, 3 und 4) 12-18.
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  • 3
    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 Phosphorus. 59. Synthesis and Structure of (C6H5PS)31,2,4-Triphenyl-1-thio-cyclo-3,5-dithia-1,2,4-triphosphane (C6H5PS)3 (1) is obtained in very good yield by the reaction of dipotassium triphenyltriphosphide (4) with dichloro trisulfane, as well as by the reaction of phenylphosphine with sulphur dichloride. Besides, 1 is formed, together with the cyclothiaphosphane (C6H5P)4 (3), by the reaction of a 1,2-diphenyl-1,2-dihalogen-diphosphane with hydrogen sulphide or disulfane and by the reaction of 4 and disulphur dichloride. - All of the spectroscopic data, especially the 31P nmr spectra, indicate unambiguously the heterocyclophosphane structure V with a five-membered P3S2-ring with isolated sulphur atoms, and with one of the directly connected phosphorus atoms bearing another sulphur atom in exo-position, in addition to the phenyl group.
    Notes: 1,2,4-Triphenyl-1-thio-cyclo-3,5-dithia-1,2,4-triphosphan (C6H5PS)3 (1) wird durch Reaktion von Dikalium-triphenyl-triphosphid (4) mit Dichlortrisulfan sowie durch Umsetzung von Phenylphosphin mit Schwefeldichlorid in sehr guter Ausbeute erhalten. Außerdem bildet sich 1 - zusammen mit dem Cyclo-thia-phosphan (C6H5P)4 (3) - bei der Umsetzung von 1,2-Diphenyl-1,2-dihalogen-diphosphanen mit Schwefelwasserstoff oder Disulfan sowie aus 4 und Dischwefeldichlorid. - Die Gesamtheit der spektroskopischen Befunde, insbesondere das 31P-Kernresonanzspektrum, ergibt für 1 eindeutig die Heterocyclophosphan-Struktur V mit fünfgliedrigem P3S2-Ring, in dem die S-Atome isoliert stehen und eines der direkt miteinander verbundenen P-Atome außer der Phenylgruppe noch ein exoständiges S-Atom trägt.
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  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metal Complexes with Anionic Ligands of Main Group IV Elements. XI. Substitution Reactions of Trichlorogermide and Trichlorostannide Ions with Metaltrifluorophosphine ComplexesThe photochemical reactions of [SnCl3]- in THF with the metal(0)-trifluorophosphine complexes of Ni, Fe, and Mo result in [Ni(PF3)3SnCl3]-, [Fe(PF3)3(SnCl2]-, and [Mo(PF3)5SnCl3]-. [GeCl3]-, in substitution reactions not as reactive as [SnCl3]-, does react under similar conditions with Fe(NO)2(PF3)2 only, to yield [Fe(NO)2(PF3)GeCl3]-. With CpMn(PF3)3 (Cp = h5-C5H5) by the intermediatly formed CpMn(PF3)2THF both substitution derivatives [CpMn(PF3)2ECl3]- (E = Ge, Sn) are found. The metallate(0) complexes are isolated as [As(C6H5))4]+- and [N(C2H5)4]+ -salts; the i.r.- and 19F-n.m.r.-spectra are reported.
    Notes: Unter UV-Bedingungen in THF liefern [SnCl3]--Ionen mit den Metall(0)-trifluorphosphinen von Nickel, Eisen und Molybdän die Metallat(0)-Komplexe [Ni(PF3)3SnCl3]-, [Fe(PF3)3(SnCl3)2]2- und [Mo(PF3)5SnCl3]-. Hingegen bildet das bei Substitutionsreaktionen hinter dem [SnCl3]-. Ion zurückstehende [GeCl3]-.-Ion unter ähnlich drastischen Bedingungen lediglich mit Fe(NO)2(PF3)2 das Monosubstitutionsprodukt [Fe(NO)2(PF3)GeCl3]-. Aus CpMn(PF3)3 (Cp = h5-C5H5) sind über den intermediär gebildeten Komplex CpMn(PF3)2THF beide Substitutionsderivate [CpMn(PF3)2ECl3]- (E=Ge, Sn) leicht zugänglich. Die Metallatkomplexe werden als [As(C6H5)4]+- bzw. [N(C2H5)4]+ -Salze isoliert; ihre IR- und 19F-NMR-Daten werden mitgeteilt.
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  • 5
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metal Complexes with Anionic Ligands of Elements of the Main Group IV. VII(1) Substitution Reactions of Carbonylnitrosyl and Nitrosyltrifluorophosphine Transition Metal Complexes with TrichlorostannidL-substitution by [SnCl3]- occurs if the nitrosyl complexes Co(NO)L3 and Fe(NO)2L2 (L = CO or PF3) are reacted with [N(C2H5)4][SnCl3] thermically in tetrahydrofuran as well as photochemically induced in methylenechloride. The complexes Co(NO)L3 yield the mono-substitution products [N(C2H5)4][Co(NO)L2SnCl3], with the iron compounds Fe(NO)2L2 only the disubstituted derivative [N(C2H5)4]2[Fe(NO)2(SnCl3)2] can be isolated. On the other hand CO substitution at (π-C5H5)Mo(NO)(CO)2 by UV irradiation did not suceed both with [SnCl3]- and with PF3. From the IR-spectroscopic data a leastly with PCl3 comparable π-acceptor ability is derived for the trichlorostannido ligand.
    Notes: Die Nitrosylkomplexe Co(NO)L3 und Fe(NO)2L2 (L = CO bzw. PF3) gehen sowohl unter thermischen Bedingungen in Tetrahydrofuran wie auch photochemisch induziert in Methylenchlorid mit [N(C2H5)4][SnCl3] L/SnCl3--Substitutionsreaktionen ein. Ausgehend von Co(NO)L3 erhält man die Tetraäthylammoniumsalze der Nitrosyltrichlorstannido-metallat-Komplexe [Co(NO)L2(SnCl3)]-. Bei Fe(NO)2L2 läuft die Reaktion stets zum allein isolierbaren [N(C2H5)4]2[Fe(NO)2(SnCl3)2] durch. Hingegen geht (π-C5H5)Mo(NO)(CO)2 weder mit [SnCl3]- noch mit PF3 unter UV-Bedingungen einen CO-Austausch ein. Aus den IR-spektroskopischen Daten wird für den Trichlorstannido-Liganden ein zumindest mit dem PCl3 vergleichbares π-Akzeptorvermögen abgeleitet.
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Redox-Studies on lodoboranes. XVI. Formation of Boron-Carbon Compounds: 1,2,5-Thiadiborolene, Cyano- and PhenylethynylboranesThe redox reaction of 3-iodo-4-dijodborylhexen-3 mit Trijodborthiin leads in 46% yield to the diiodo derivative of 1,2,5-thiadiborolene. Some of the properties of this new heterocyclic compound are reported. Redox reactions of iodoboranes with iodocyan and phenyliodoacetylene yield under elimination of iodine cyano- and phenylethynylboranes.
    Notes: Die Redox-Reaktion von 3-Jod-4-dijodborylhexen-3 mit Trijodborthiin führt in 46% Ausbeute zu dem Dijodderivat des 1,2,5-Thiadiborolens. Einige Eigenschaften dieser neuen heterocyclischen Verbindung werden mitgeteilt. Durch Umsetzung von Jodboranen mit Jodcyan bzw. Phenyljodacetylen entstehen unter Freisetzung von Jod Cyan- bzw. Phenyläthinylborane.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 449 (1979), S. 167-173 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Elementorganic Amine/Imine Compounds. XX. N,N′-Dimethyl-P,P-dialkyl-N-dimethylphosphinylaminoiminophosphoranes The reaction between H3C(R)P(NCH3)NCH3Li and dimethylchlorophosphine gives the N,N′-dimethyl-P,P-diakyl-N-dimethylphosphinylaminoiminophosphoranes 2 (R = CH3, C(CH3)3). 2 can be oxidized by elemental sulfur and selenium with formation of the double ylides H3C(R)P(NCH3)NCH3P(X)(CH3)2 (3) (R = CH3, C(CH3)3; X = S, Se). The NMR spectra of 2 and 3 are discussed.
    Notes: H3C(R)P(NCH3)NCH3Li bildet mit Dimethylchlorphosphin die N,N′-Dimethyl-P,P-dialkyl-N-dimethylphosphinyl-aminoiminophosphorane 2 (R = CH3, C(CH3)3). Ihre Oxydation mit elementarem Schwefel und Selen ergibt die Doppelylide H3C(R)P(NCH3)NCH3P(X)-(CH3)2 (3) (R = CH3, C(CH3)3; X = S, Se). Die NMR-Spektren von 2 und 3 werden diskutiert.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 411 (1975), S. 192-192 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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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: Metal Complexes with Anionic Ligands of Elements of the Main Group IV. VIII Pentacarbonyltrihalogenostannidometalate(O) Complexes of Chromium, Molybdenum, and Tungsten with Fluorine and Iodine Containing Trihalogenostannido LigandsIn methylenechloride [As(C6H5)4][SnF3] readily reacts with the metalhexacarbonyls forming the arsoniumsalts of the pentacarbonyltrifluorostannidometalate(O) complexes, [M(CO)5SnF3]- (M = Cr, Mo, W). Exclusively by the reaction of the intermediately formed complex Cr(CO)5THF only one pure triiodostannidometalate(O) Complex, [N(C2H5)4][Cr(CO)5SnJ3], could be isolated. The trihalogenostannidometalate(O) complexes [M(CO)5SnClX2]- (X = F: M = Cr, Mo, W; X = J: M = Cr) could be prepared by SnX2-insertion reactions of the [M(CO)5Cl]- complexes. The bonding properties of the halogenostannide ions are discussed on the bases of the IR spectra of their metalate(O) complexes.
    Notes: In Methylenchlorid setzt sich [As(C6H5)4][SnF3] glatt mit den Metallhexacarbonylen zu den Arsoniumsalzen der Pentacarbonyl-trifluorstannido-metallat(O)-Komplexe [M(CO)5SnF3]- (M = Cr, Mo, W) um. Mit [N(C2H5)4][SnJ3] konnte in THF-Lösung nur über das Zwischenprodukt Cr(CO)5 THF ein Trijodstannidochromat(O)-Komplex [N(C2H5)5][Cr(CO)5SnJ3] rein erhalten werden. Durch SnF2-bzw. SnJ2-Insertionsreaktionen an den [M(CO)5Cl]--Komplexen erhält man die Trihalogenstannidometallat(O)-Komplexe [M(CO)5SnClX2]- (X = F: M = Cr, Mo, W; X = J: M = Cr). Anhand der IR-Spektren wird das Bindungsverhalten halogenhaltiger Stannid-Ionen 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: Metal Complexes with Anionic Ligands of the Main Group IV Elements. IX. Reactions of Trichlorostannide and Trichlorogermide Ions with Complexes of Transition Metals in Low Oxidation StatesCarhonyl trichlorostannido- and carbonyl trichlorogermido-metalate complexes have been synthesized both by photochemical and thermical substitution reactions of [ECl3]- ions (E = Sn, Ge) with M(CO)6, (M = Cr, Mo, W), Fe(CO)5 Fe3(CO)12, Co2(CO)8, as well as with the metalcarbonyl derivatives (π-arene)M(CO)3, (M = Cr, Mo), (h5-C5,H5,)V(CO)4, Mn(CO)5,Cl, Co(NO)(CO)3, and Fe(NO)2,(CO)2. Mainly the bonding properties of the [ECl3]- ligands are discussed by means of i.r. spectroscopic investigations. The progress of the reactions and the necessary reaction conditions show that the nucleophilic properties oft both anions [ECl3]- are unexpectedly small. The slightly weaker hasicity of [SnCl3]- compared with [GeC13]- arreared, when both anions were reacted with Co2,(CO)8, forming the substitution product. [Co2,(CO)7,SnCl3]- and the products of a “base reaction” Cl3GcCo(CO)4, and [Co(CO)4]-.
    Notes: Unter photochemischen wie auch thermischen Bedingungen werden insbesondere Carbonyl-trichlorstannido (bzw. trichlorgermido)-metallat-Komplexe durch Substitutionsreaktionen von [SnCl3]-- bzw. [GeCl3]--Ionen an den Metallcarbonylen M(CO)6 (M = Cr, Mo, W), Fe(CO)5, Fe3(CO)12 und Co2(CO)8 sowie an den Metallcarbonylderivaten π-ArenM(CO)3 (M = Cr, Mo), (h5-C5H5)V(CO)4, Mn(CO)5Cl, Co(NO)(CO)3 und Fe(NO)2(CO)2 dargestellt und als [N(C2H5)4]+ - bzw. [As(C6H5)4]+-Salze isoliert. Anhand der IR-Spektren werden ihre Bindungsverhältnisse diskutiert. Aus den Reaktionsabläufen und den hierzu erforderlichen Reaktionsbedingungen darf eine unerwartet geringe Nukleophilie der beiden [ECl3]--Liganden (E = Ge, Sn) abgeleitet werden. Obgleich das Trichlorstannid-Ion  -  das mit Oktacarbonyldikobalt immerhin noch das Substitutionsprodukt [Co2(CO)7SnCl3]- liefert, während [GeCl3]- unter analogen Bedingungen bereits eine „Basenreaktion“ zum Cl3GeCo(CO)4 und [Co(CO)4]- indiziert  -  im Vergleich zum Trichlorgermid-Ion die am schwächsten ausgeprägte Basizität besitzt, kann ein prinzipiell unterschiedliches komplexchemisches Reaktionsverhalten beider Anionen nicht festgestellt werden.
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