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Reaction of GeF 4 with fluoride sources produces GeF 5 − anions with octahedral coordination around Ge atom due to polymerization. [6] The structural characterization of a discrete trigonal bipyramidal GeF 5 − anion was achieved by a "naked" fluoride reagent 1,3-bis(2,6-diisopropylphenyl)imidazolium fluoride.
Download as PDF; Printable version; In other projects Wikidata item; ... GeF 4, a colorless ... This page was last edited on 10 January 2019, ...
Under normal conditions germanium tetraiodide (GeI 4) is a solid, germanium tetrafluoride (GeF 4) a gas and the others volatile liquids. For example, germanium tetrachloride , GeCl 4 , is obtained as a colorless fuming liquid boiling at 83.1 °C by heating the metal with chlorine. [ 35 ]
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Crosstalk has also been shown between GEFs and multiple GTPase signaling pathways. For example, SOS contains a Dbl homology domain in addition to its CDC25 catalytic domain. SOS can act as a GEF to activate Rac1, a RhoGTPase, in addition to its role as a GEF for Ras. SOS is therefore a link between the Ras-Family and Rho-Family GTPase signaling ...
Germanium difluoride (GeF 2) is a chemical compound of germanium and fluorine. It is a white solid with a melting point of 110 °C, and can be produced by reacting germanium tetrafluoride with germanium powder at 150–300 °C.
Abundances are given as pollution free monthly mean mole fractions in parts-per-trillion. Atmospheric concentration of CF 4 (PFC-14) vs. similar man-made gases (right graph). Note the log scale. Tetrafluoromethane is a potent greenhouse gas that contributes to the greenhouse effect.
The 2015 version of this article was updated by an external expert under a dual publication model. The corresponding academic peer reviewed article was published in Gene and can be cited as: Kenji Sugawara; Tadao Shibasaki; Harumi Takahashi; Susumu Seino (18 September 2015). "Structure and functional roles of Epac2 (Rapgef4)". Gene. Gene Wiki ...