Germanium Compounds Cyclic
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Germanium Compounds Cyclic

CYCLIC GERMANIUM COMPOUNDS AND APPLICATIONS

CYCLIC GERMANIUM COMPOUNDS AND APPLICATIONS THEREOF . United States Patent Application 20150166581 . Kind Code: A1 . Abstract: The present disclosure provides a new series of compounds exhibiting high fluorescence quantum yields in the solid state. In one embodiment, the compounds include a series of 2,3,4,5-tetraphenylgermoles with the same or ...

CYCLIC GERMANIUM COMPOUNDS AND APPLICATIONS THEREOF

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"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.

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

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

Isolation of Transient Acyclic Germanium(I) Radicals ...

Herein, we report the synthesis of acyclic neutral germanium(I) radicals Cy-cAAC:GeN(SiMe 3)Dip (1) and Me-cAAC:GeN(SiPh 3)Mes (2) obtained by the reduction of [Ar(SiR 3)NGeCl 3] with KC 8 in the presence of cAAC. Compounds 1 and 2 are well characterized by single crystal X-ray structural analysis, cyclic voltammetry, and EPR spectroscopy.

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 ...

Germanium, isotope of mass 72 | Ge - PubChem

Germanium, isotope of mass 72 | Ge | CID 44152739 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...

Three-membered cyclic digermylenes stabilised by an N ...

Treatment of potassium salts of silole dianions with donor stabilised germanium dichlorides gave the anticipated silagermafulvenylidenes R 2 Si = Ge(Do) (R 2 Si = 1-silacyclopentadiendiyl, Do = N-heterocyclic carbene (NHC)) only as transient intermediates in a side reaction. They were detected by NMR spectroscopy and, in one case, the formal dimer, 2,4-disila-1λ 3,3λ 3-digermetane, was isolated.

Comparative chemistry of isolable divalent compounds of ...

Comparative chemistry of isolable divalent compounds of silicon, germanium, and tin. Kira M (1), Ishida S, Iwamoto T. Recent studies of the synthesis, structures, spectroscopic properties, and reactions of a series of isolable metallylenes (R2E:, E = Si (1), Ge (2), and Sn (3); R2 = 1,1,4,4-tetrakis (trimethylsilyl)butane-1,4-diyl) are ...

A Neutral Germanium/Phosphorus Frustrated Lewis Pair ...

Sep 07, 2021 · In 2016, Zhu and co-coworkers reported the amino group combined Ge/P FLPs (Chart 1, I) that could react with alkynes affording zwitterionic cyclic vinyl compounds. 36 A germanium-containing FLPs (Chart 1, II) featuring the pronounced electron-withdrawing pentafluoroethyl groups on germanium atom was exposed by Mitzel etc., which exhibits high ...

Chalcogeno[bis(phosphaalkenyl)] Germanium and Tin Compounds

The cyclic Ge2Se74- anion contains two tetrahedral GeSe4 building units linked at one corner Se atom and through an Se-Se bond. 1 also contains a novel complex cation in which Mn(II) atoms are ...

Heterocyclic compound - Wikipedia

A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and applications of these heterocycles.. Examples of heterocyclic compounds include all of the nucleic acids, the majority of drugs, most biomass (cellulose ...

Classification of Organic Compounds | Cyclic and Acyclic ...

Sep 09, 2021 · #Chemistry#FSC#AmjadUmerAcademy#ProfessorOfChemistryThis video explains classification of Organic Compounds.Organic Compounds have

ChemInform Abstract: Synthesis, Structure and Chemical ...

Jan 07, 1995 · Read "ChemInform Abstract: Synthesis, Structure and Chemical Properties of Hypervalent Germanium Compounds. Derivatives of Lactams with the Cyclic C(O)NCH2Ge Fragment, ChemInform" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Synthesis and Characterization of Luminescent Cyclic ...

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Germanium powder, −100 mesh, ≥99.999% trace metals basis ...

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). [GeCl4(BuIm)2] (BuIm = N-butylimidazole) was used as...

heterocyclic compound | chemistry | Britannica

heterocyclic compound, also called heterocycle, any of a major class of organic chemical compounds characterized by the fact that some or all of the atoms in their molecules are joined in rings containing at least one atom of an element other than carbon (C). The cyclic part (from Greek kyklos, meaning “circle”) of heterocyclic indicates that at least one ring structure is present in such ...

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

Germanium Compounds | Gelest, Inc.

To search by structure, left click in the box below to display the chemdraw toolbar. Then, draw the chemical structure of interest in the box using the toolbar.

Germanium analogue of cyclobutadiene isolated | Research ...

The tetragermacyclobutadiene has a planar diamond-like four-membered germanium ring with no bond alternation, but charge separation on the four germanium atoms. Bulky EMind (EMind = 1,1,7,7-tetraethyl-3,3,5,5- tetramethyl-s-hydrindacen-4-yl) groups stabilise the structure.

What is Germanium - Chemical Properties of Germanium ...

Nov 21, 2020 · Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. The chemical symbol for Germanium is Ge. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The nucleus is composed of protons and neutrons.

Isolation of Transient Acyclic Germanium(I) Radicals ...

Herein, we report the synthesis of acyclic neutral germanium(I) radicals Cy-cAAC:GeN(SiMe3)Dip (1) and Me-cAAC:GeN(SiPh3)Mes (2) obtained by the reduction of [Ar(SiR3)NGeCl3] with KC8 in the presence of cAAC. Compounds 1 and 2 are well characterized by single crystal X-ray structural analysis, cyclic voltammetry, and EPR spectroscopy.

Therapeutic effects of organic germanium

Germanium is present in all living plant and animal matter in micro-trace quantities. Its therapeutic attributes include immuno-enhancement, oxygen enrichment, free radical scavenging, analgesia and heavy metal detoxification. Toxicological studies document Germanium's rapid absorption and eliminati

A Neutral Germanium/Phosphorus Frustrated Lewis Pair ...

Sep 07, 2021 · In 2016, Zhu and co-coworkers reported the amino group combined Ge/P FLPs (Chart 1, I) that could react with alkynes affording zwitterionic cyclic vinyl compounds. 36 A germanium-containing FLPs (Chart 1, II) featuring the pronounced electron-withdrawing pentafluoroethyl groups on germanium atom was exposed by Mitzel etc., which exhibits high ...

Advances in Effect of Germanium or Germanium

germanium compound [37], are being synthesized and applied in an increasing-ly large scale in animal production. Studying all of the germanium compounds pave the way for the search of more effective anticancer drugs containing ger-manium, and lay a foundation for the studying the biological functions of the germanium or germanium compounds. 4.

Cyclic Organosilicon Compounds. I. Synthesis of Compounds ...

Cyclic Organosilicon Compounds. II. Reactions Involving Certain Functional and Related Dibenzosilole Compounds. Journal of the American Chemical Society 1958, 80 (13) , 3243-3246. DOI: 10.1021/ja01546a017. Dietmar Wittenberg, Henry Gilman.

Germanium - Element information, properties and uses ...

Germanium is a semiconductor. The pure element was commonly doped with arsenic, gallium or other elements and used as a transistor in thousands of electronic applications. Today, however, other semiconductors have replaced it. Germanium oxide has a high index of refraction and dispersion.

Germanium(II) hydrides - Wikipedia

The synthesis and isolation of two digermanium germanium(II) hydrides have also been reported. One of these compounds was formed by the addition of L-selectride to a bulky germanium(II) chloride in ether, while the other was formed by the addition of L-selectride to the same germanium(II) chloride in toluene, followed by filtration and the dropwise addition of PMe 3.

Category:Germanium compounds - Wikimedia Commons

Media in category "Germanium compounds" The following 63 files are in this category, out of 63 total. (4+1)cycloaddition of digermyne-pngversion.png. Acido germanico.png 800 × 440; 7 KB. Addition reaction of digermynes with alcohols and water.png. AJA

Germanium | History, Uses, Facts, Physical & Chemical ...

Germanium is used in making optical fibers and solar cells. Germanium is used to make nanowires, which is one of its most recent usages. Various organic compounds of germanium have diverse applications, such as tetraethyl germane is widely used in the

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.

7 Uses of Germanium in Everyday Life - Characteristics ...

Jul 11, 2017 · Germanium is insoluble in the acids and alkalis while it slowly dissolves in the hot sulfuric and nitric acids. In this mix, germanium will react with melted alkalis to form germinates. The common presence of germanium is in its oxidation state +4 even though we also notice some of its +2 oxidation state compounds.

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