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Germanium Compounds Cyclic

"Synthesis and Characterization of Luminescent Cyclic ...

The vision in the field of organic electronics is the realization of flexible, easily manufactured, low cost optoelectronics for use in organic light emitting diodes (OLEDs) for large area displays and lighting applications, organic photovoltaic cells, and organic field-effect transistors. The active layers within such devices are composed of semiconducting small molecules or polymers.

Synthesis and properties of cyclic ethynyl compounds of ...

高达10%返现 · Synthesis and properties of cyclic ethynyl compounds of silicon and germanium. N. A. Vasneva 1, O. N. Gavrilova 1 & A. M. Sladkov 1 Bulletin of the Academy of Sciences of the USSR, Division of chemical science volume 27, pages 1898–1899 (1978)Cite this article

Germanium Compounds - an overview | ScienceDirect Topics

Germanium compounds containing dithiocarbonate 179 and dithiophosphate 180,181 ligands which have Ge–S bonds have been prepared and structurally characterized. Compounds containing germanium and other group 14 elements held together by chalcogenide bridges have been synthesized such as the heavy bicyclo[2.2.2]octane derivatives which contain germanium and silicon in the

GeR4 Compounds and Ge(CH3) 3R Compounds up to Cyclic Alkyl ...

GeR4 Compounds and Ge (CH3) 3R Compounds up to Cyclic Alkyl Groups. The present volume opens the Gmelin series on organogermanium compounds, that is, those compounds containing at least one germanium-to-carbon bond. This whole series is being coordinated by Professor J. Satge of the Universite Paul Sabatier in Toulouse.

Insertions of Cyclic and Acyclic Germanium and Tin ...

The sterically least-encumbered phosphines were more reactive, while the cyclic stannylene 2 was the most reactive and the acyclic germylene 3 was the least reactive. All but one of the products were either mono- or diinsertion compounds, the lone exception being a distannane derived from 2. Semikinetic and structural data suggest that the ...

Applications of Germanium Compounds - Gelest

Germanium compounds have emerged as critically important materials in the fabrication of microelectronics, optics and sensors. Potential new applications in organic transformations and polymer synthesis have also been ... Repeating germanium-oxygen bonds tend to form cyclic structures in preference to extended linear polymers. In contrast to ...

Acyclic germylones: congeners of allenes with a central ...

Compounds 1 and 2 are the first acyclic germylones containing each one germanium atom and two cAAC: molecules. EPR measurements on compounds 1 and 2 confirmed the singlet spin ground state. DFT calculations on 1/2 revealed that the singlet ground state is more stable by ~16 to 18 kcal mol(-1) than that of the triplet state.

Synthesis and properties of cyclic ethynyl compounds of ...

Synthesis and properties of cyclic ethynyl compounds of silicon and germanium. N. A. Vasneva 1, O. N. Gavrilova 1 & A. M. Sladkov 1 Bulletin of the Academy of Sciences of the USSR, Division of chemical science volume 27, pages 1898–1899 (1978)Cite this article

Applications of Germanium Compounds - Gelest

Germanium compounds have emerged as critically important materials in the fabrication of microelectronics, optics and sensors. Potential new applications in organic transformations and polymer synthesis have also been ... Repeating germanium-oxygen bonds tend to form cyclic structures in preference to extended linear polymers. In contrast to ...

GeR4 Compounds and Ge(CH3) 3R Compounds up to Cyclic

GeR4 Compounds and Ge (CH3) 3R Compounds up to Cyclic Alkyl Groups. The present volume opens the Gmelin series on organogermanium compounds, that is, those compounds containing at least one germanium-to-carbon bond. This whole series is being coordinated by Professor J. Satge of the Universite Paul Sabatier in Toulouse.

Insertions of Cyclic and Acyclic Germanium and Tin ...

The sterically least-encumbered phosphines were more reactive, while the cyclic stannylene 2 was the most reactive and the acyclic germylene 3 was the least reactive. All but one of the products were either mono- or diinsertion compounds, the lone exception being a distannane derived from 2. Semikinetic and structural data suggest that the ...

Investigation of electrochemical reduction of GeO2 to Ge ...

Nov 20, 2014 · Cyclic voltammetry and potentiostatic electrolysis were applied to study the GeO 2-loaded metallic cavity electrode. ... Ge intermetallic compounds might form. These results gave an appropriate potential range between -1.10 and -1.40 V for the production of pure germanium.

Metalloid compounds as drugs

Metalloid compounds generate various biological effects on cells and tissues and their therapeutic and potential uses have been evolving over centuries, starting, for example, with the empiric use of arsenic in ancient times up to the current Food and Drug Administration approval of As 2 O 3 for the treatment of acute promyelocytic leukemia in human. . However, opportunities remain unrealised ...

Category:Germanium compounds - Wikipedia

For germanium compounds. Wikimedia Commons has media related to Germanium compounds. Subcategories. This category has the following 3 subcategories, out of 3 total. G. Germanates‎ (3 P) Germanides‎ (4 P) O. Organogermanium compounds‎ (1 C,

"Synthesis and Characterization of Luminescent Cyclic ...

Synthesis and Characterization of Luminescent Cyclic Germanium Compounds. Teresa Lynn Bandrowsky, University of Missouri-St. Louis. Abstract. The vision in the field of organic electronics is the realization of flexible, easily manufactured, low cost optoelectronics for use in organic light emitting diodes (OLEDs) for large area displays and lighting applications, organic photovoltaic cells ...

Characterisation of the solid electrolyte interface during ...

Cyclic voltammetry (CV) and infrared ... germanium nanostructures also have gained a lot of attention due to their high specific capacity (4200 mA h g 1 for Li ... mation of compounds such as Li 2O, LiOH, Li 2S 2O 4,Li yC 2F x etc.15 Al macroporous structures and Al nanowires, both grown

Germanium compounds - Rohm and Haas Electronic Materials L ...

What is claimed is: 1. A method of depositing a film containing germanium on a substrate comprising the steps of: a) conveying two or more germanium compounds in a gaseous phase to a deposition chamber containing the substrate, wherein a first germanium compound is a halogermanium compound of the formula X 1 4-a GeR a, wherein a=0-3, each X 1 is independently a halogen, and

Synthesis and Characterization of Luminescent Cyclic ...

Synthesis and Characterization of Luminescent Cyclic Germanium Compounds . By Teresa Lynn Bandrowsky. Get PDF (14 MB) Abstract. The vision in the field of organic electronics is the realization of flexible, easily manufactured, low cost optoelectronics for use in organic light emitting diodes (OLEDs) for large area displays and lighting ...

Crystals | Free Full-Text | Comparative Study of Phase ...

Single-crystal germanium is a semiconductor material which shows complicated phase transformation under high pressure. In this study, new insight into the phase transformation of diamond-cubic germanium (dc-Ge) was attempted by controlled cyclic nanoindentation combined with Raman spectroscopic analysis. Phase transformation from dc-Ge to rhombohedral phase (r8-Ge) was

heterocyclic compound - Rings with uncommon heteroatoms ...

heterocyclic compound - heterocyclic compound - Rings with uncommon heteroatoms: In addition to the nitrogen, oxygen, and sulfur atoms commonly found in heterocycles, a large number of other elements form such rings—of greater or lesser stability. Such compounds are as yet of little practical importance. Some of the main classes are described below according to the elements they contain.

Characterisation of the solid electrolyte interface during ...

Cyclic voltammetry (CV) and infrared ... germanium nanostructures also have gained a lot of attention due to their high specific capacity (4200 mA h g 1 for Li ... mation of compounds such as Li 2O, LiOH, Li 2S 2O 4,Li yC 2F x etc.15 Al macroporous structures and Al nanowires, both grown

Fluorescence and phosphorescence study of germanium ...

Oct 06, 2015 · Synthesis and optical properties of skipped polyynes comprising germanium–acetylene units are presented. The prepared germanium polymers were investigated by UV-vis, fluorescence, and phosphorescence spectroscopy and DFT calculations. The optical properties were compared to those of cyclic compounds, germa[N

Investigation of electrochemical reduction of GeO2 to Ge ...

Nov 20, 2014 · Cyclic voltammetry and potentiostatic electrolysis were applied to study the GeO 2-loaded metallic cavity electrode. ... Ge intermetallic compounds might form. These results gave an appropriate potential range between -1.10 and -1.40 V for the production of pure germanium.

Determination of Total Germanium in Chinese Herbal ...

Germanium compounds display a number of biological activities ... Cyclic voltammograms (in the range from −0.5 to −1.0 V) of the Ge(IV)-pyrogallol complex with and without Ge(IV) after preconcentration at the BiFE were shown in Figure 3.

Germanium chips, 99.999% trace metals basis | 7440-56-4

The electrodeposition of germanium from the ionic liquid 1-butyl-1-methylpyrrolidinium dicyanamide ([BMP][DCA]) and a mixture of [BMP][DCA] and 1-butyl-1-methylpyrrolidinium chloride ([BMP]Cl) was studied using cyclic voltammetry and using an electrochemical quartz crystal microbalance (EQCM).

RATIONAL SYNTHESIS AND PROPERTIES OF NEW LONG

germanium compounds are minimal. The longest linear oligogermane completely characterized, including its structure, is the perphenylated pentagermane, Ge 5 Ph 12. Due to their inherent properties, it is of interest to synthesize longer, linear oligomeric germanium compounds. It is proposed that if a long enough chain of germanium atoms is

Controlling Catenation in Germanium(I) Chemistry through ...

May 03, 2021 · While dimetallynes represent a key contribution to the chemistry of group 14 compounds in the formal +1 oxidation state, other isolable systems include radicals (e.g. V) 22 and zwitterions. 23 Polyhedral clusters also constitute an important contribution to low-valent germanium chemistry, 24 as do catenated chain compounds composed of E−E bonds.

Germanium (Ge) - Chemical properties, Health and ...

Germanium is stable in air and water, and is unaffected by alkalis and acids, except nitric acid. Applications. Germanium is an important semiconductor, mainly used in transistors and integrated circuits. They are often made from germanium to which small amounts of arsenic, gallium, or other metals. Germanium forms many compounds.

Periodic Table of Elements: Germanium - Ge ...

There are several compounds which contain germanium. "Germaine" or germanium hydride is a colorless gas GeH4 prepared by the action of lithium aluminum hydride on germanium halide in an ether solution. Germaine is a hazardous substance UN2192 which is classified as a poisonous gas (2.3). It is also a flammable gas (2.1).

Absorption, electrochemical, theoretical, and 73Ge NMR ...

The germanium-based neo-pentane analogue (Me3Ge)4Ge has been characterized by UV/visible spectroscopy, cyclic voltammetry, and 73Ge NMR spectroscopy as

Germanium, Chemical Element - reaction, water, uses ...

Germanium is not thought to be essential to the health of plants or animals. Some of its compounds present a hazard to human health, however. For example, germanium chloride and germanium fluoride (GeF 4 ) are a liquid and gas, respectively, that can be very irritating to the eyes, skin, lungs, and throat.

Photoinduced Electron Transfer from Cyclic Organogermanium ...

With the decay of T C 60 *, the absorption bands of the radical anion of C 60 appeared at 1070 nm, showing that the electron transfer takes place from organogermanium compounds to T C 60 *. The efficiencies and rates of the electron-transfer reactions vary with

Inorganic Compounds | Products made by Indium Corporation

Germanium Compounds. Our germanium compounds include germanium tetrachloride (GeCl 4) and germanium oxide (germanium dioxide, GeO 2). We supply both materials at high purities. The optical fiber and semiconductor industries are the main users of these compounds.

Analysis of Germanium Hydride Molecular Clusters ...

Jan 28, 2011 · Germanium in hydrides was revealed to be not only four-coordinated but to sometimes form only two bonds in linear chain or cyclic structures. The planar digermene H 2 Ge = GeH 2 form is the transition state in the interconversion of the germylgermylene H 3 Ge–GeH structure, which was found to correspond to minimum enthalpy [ 5 ].