1188-14-3Relevant academic research and scientific papers
Chemical Vapour Deposition of Germanium Films by Laser-induced Photolysis of Ethylgermanes
Pola, Josef,Parsons, Jonathan P.,Taylor, Roger
, p. 1637 - 1642 (1992)
Excimer laser photolysis of ethylgermanes EtnGeH4-n (n = 1-4) at 193 nm yields ethane, ethene and butane along with germanium deposited on the inner surface of the reactor.The distribution of gaseous products is remarkably different
Investigation of the reaction of bis(triethylgermyl)cadmium with titanium tetrachloride
Lomakova, I.V.,Patrikeeva, N. B.,Domrachev, G. A.,Petrov, B. I.
, p. 1242 - 1244 (1994)
The reaction between (Et3Ge)2Cd and TiCl4 in the presence of α,α'-bipyridyl afforded a compound with a Ge-Cd-Ti group.This compound was characterized by IR and ESR spectroscopy.Thermal decomposition of this compound at 130 and 160 deg C and its interaction with gaseous HCl were studied.A novel complex, (Et3Ge)2Cd*bpy, was obtained as a by-product of the reaction, and some its physicochemical characteristics were determined.Based on the experimental results, a scheme for the interaction of (Et3Ge)2Cd with TiCl4 has been suggested. - Key words: mixed organo-Cd, Ti compounds.
The reaction of ethylene with digermane: ethylpolygermanes
Mackay,Watt
, p. 123 - 129 (1968)
Ethylene reacts directly with digermane at 120-160° and 5-10 atm pressure to yield not only digermanes, EtnGe2H6-n, but also monogermanes and trigermanes. Ethyldigermane and the new compounds 1,1- and 1,2-diethyldigermane,
REDUCTION OF ALKOXYSILANES, HALO-SILANES AND -GERMANES WITH LITHIUM ALUMINIUM HYDRIDE UNDER PHASE-TRANSFER CONDITIONS
Gevorgyan, V. N.,Ignatovich, L. M.,Lukevics, E.
, p. C31 - C32 (1985)
In the presence of phase-transfer catalysts, silicon and germanium organohydrides were obtained in high yield by reduction of the corresponding halo and alkoxy derivatives with lithium aluminium hydride in the solid LiAlH4/hydrocarbon two-phase system.
R3E+ carborane salts of the heavier group 14 elements: E = Ge, Sn, and Pb
Wright, James H.,Mueck, Gabriel W.,Tham, Fook S.,Reed, Christopher A.
, p. 4066 - 4070 (2010)
The synthetic and structural chemistry of catalytically useful trialkylsilylium salts with weakly coordinating carborane anions, R 3Si(CHB11X11), has been extended to the heavier group 14 elements. Et3Ge(CHB11H5Br 5) was prepared from Et3GeH and trityl CHB 11H5Br6-. Its X-ray crystal structure shows ion-like character very similar to its Si congener. The heavier element analogues, Et3E(CHB11H5Br6) (E = Sn, Pb), were prepared by chloride ion abstraction from Et3SnCl and Et3PbCl, respectively, using Et3Si(CHB 11H5Br6). Their crystal structures differ from those of the four-coordinate lighter elements by adopting five-coordinate trigonal-bipyramidal stereochemistries, reflecting the periodic table transition of these elements from semi-metals to metals. The carborane anions are weak, bridging, axial ligands connecting trigonal Et3E+ cation-like moieties in polymeric chain structures. When the less coordinating CHB11Cl11- anion is used, excess germane competes with the carborane anion for coordination to Ge and a salt of the new hydride-bridged cation [Et3Ge-H-GeEt3]+ can be isolated. It has a distinctive αGeHGe IR band at ca. 1740 cm-1 analogous to the 1875 cm-1 band of the [Et3Si-H-Si-Et 3]+ cation. Comparable chemistry is not observed for the Sn and Pb congeners.
Use of neodymium diiodide in the synthesis of organosilicon, -germanium and -tin compounds
Balashova, Tatyana V.,Kusyaev, Dmitry M.,Kulikova, Tatyana I.,Kuznetsova, Olga N.,Edelmann, Frank T.,Giessmann, Stephan,Blaurock, Steffen,Bochkarev, Mikhail N.
, p. 256 - 260 (2007)
The reactivity of neodymium diiodide, NdI2 (1), towards organosilicon, -germanium and -tin halides has been investigated. Compound 1 readily reacts with Me3SiCl in DME to give trimethylsilane (6 %), hexamethyldisilane (4 %) and (Mes
Access to Fully Alkylated Germanes by B(C6F5)3-Catalyzed Transfer Hydrogermylation of Alkenes
Keess, Sebastian,Oestreich, Martin
, p. 1898 - 1901 (2017/04/11)
Various cyclohexa-2,5-dien-1-yl-substituted germanes are shown to serve as easy-to-handle surrogates of hydrogermanes, including gaseous MeGeH3 and Me2GeH2. The Ge-H functional group is liberated by treatment with catalytic amounts of B(C6F5)3 and participates in situ in the B(C6F5)3-catalyzed hydrogermylation of alkenes. The range of suitable alkenes is broad, and the overall procedure provides a convenient access to tetraalkyl-substituted germanes at room temperature. Transfer hydrogermylation of internal alkynes works equally well and selectively forms the trans or cis diastereomer depending on the electronic bias of the C≡C bond.
Syntheses of di- and trinuclear platinum complexes with multibridged germanium centers derived from unsymmetrical digermanes
Arii, Hidekazu,Hashimoto, Rei,Mochida, Kunio,Kawashima, Takayuki
, p. 6635 - 6641 (2012/11/07)
A trigonal-bipyramidal Pt3Ge2 cluster was synthesized by the reaction of the zerovalent platinum complex [Pt(dppe)(η2- C2H4)] (dppe = 1,2-bis(diphenylphosphino)ethane) with the unsymmetrical digermane H3GeGeEt3 at a 3/2 molar ratio. The platinum centers formed a triangular plane bridged by two germylyne ligands, one of which maintained the Ge-Ge bond. To investigate the Pt 3Ge2 cluster formation process, the phenyl-substituted digermanes HPh2GeGeMe3 and H2PhGeGeR 3 (R = Me, Et), in which two hydrogen atoms and one hydrogen atoms of the reactive GeH3 moiety were replaced by the bulkier phenyl group(s) together with the substitution of the GeEt3 group by a GeMe3 group, respectively, were used to simplify the reaction system. They provided the digermylplatinum hydride [Pt(dppe)(H)(GePh 2GeMe3)] (2) and the bis(μ-germylene)diplatinum complexes [Pt2(dppe)2(μ-GeHPh)(μ-Ge(Ph)GeR 3)] (3, R = Me; 4, R = Et) in moderate yields, respectively. For 3 and 4, the first-formed digermylplatinum hydride I-1 underwent dissociation of one of the phosphorus donors followed by 1,2-germyl migration to give the corresponding bis(germyl)platinum complex I-2, as observed in the previously reported silicon system. On the one hand, the germyl migration did not take place in the case of 2, owing the Ge-Ge bond being less reactive than the Si-Si bond. Intermediates I-1 and I-2 coupled to each other to afford the germylene-bridged diplatinum complexes 3 and 4 accompanied by extrusion of H2 and R3GeH. In the case of H3GeGeEt 3, the corresponding bis(μ-germylene)diplatinum complex reacted with [Pt(dppe)(η2-C2H4)], resulting in the formation of the desired Pt3Ge2 cluster. The spiro-type Pt4Ge complex was obtained only by changing mole equivalents of [Pt(dppe)(η2-C2H4)], demonstrating the usefulness of the present method using H3GeGeEt3, which can readily regulate the molar ratio.
Reaction of organoelement hydrides R3EH (E = Si, Ge) with metal tert-butylate (M = Al, Ti)-tert-butyl hydroperoxide oxidative systems
Stepovik,Gulenova,Martynova,Skvortsov,Cherkasov
, p. 1098 - 1107 (2007/10/03)
Trialkyl(aryl)silanes and -germanes effectively react with metal (Al, Ti) tert-butylate-tert-butyl-hydroperoxide under mild conditions (room temperature, benzene or tetrachloromethane) mainly by the element-hydrogen bond. The character of the products depends on the nature of the element, the structure of the radical bound to it, and the solvent. The process is radical in nature. It includes the stages of formation of element-centered radicals and their reaction with the oxygen generated by the system. The intermediate organometallic peroxides can also acts as oxidants for the element (Si, Ge)-hydrogen bonds. 2005 Pleiades Publishing, Inc.
Molecular hydrides of samarium and europium LnH2(THF)2 (Ln = Sm or Eu): Synthesis and properties
Fedorova,Trifonov,Kirillov,Bochkarev
, p. 946 - 948 (2007/10/03)
The molecular hydrides Ln11H2(THF)2(Ln = Sm or Eu) were prepared by hydrogenolysis of the naphthalene complexes of divalent samarium and europium C10H8Ln(THF)2 (Ln = Sm or Eu, respectively)
