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Beryllium fluoride has distinctive optical properties. In the form of fluoroberyllate glass, it has the lowest refractive index for a solid at room temperature of 1.275. Its dispersive power is the lowest for a solid at 0.0093, and the nonlinear coefficient is also the lowest at 2 × 10 −14.
Similar compounds have magnesium or zinc in a similar position as beryllium, e.g. K 2 [MgF 4] (potassium tetrafluoromagnesate) or [NH 4] 2 [ZnF 4] (ammonium tetrafluorozincate) but these are not as stable. [12] Tetrafluoroberyllate has a biological effect by inhibiting F-ATPase adenosine triphosphate producing enzymes in mitochondria and bacteria.
Structure of beryllium fluoride (BeF 2), a compound with a linear geometry at the beryllium atom.. The linear molecular geometry describes the geometry around a central atom bonded to two other atoms (or ligands) placed at a bond angle of 180°.
Fluorine's chemistry includes inorganic compounds formed with hydrogen, metals, nonmetals, and even noble gases; as well as a diverse set of organic compounds. [note 1] For many elements (but not all) the highest known oxidation state can be achieved in a fluoride. For some elements this is achieved exclusively in a fluoride, for others ...
Wouldn't those compounds have more ionic character than BeF2? Perhaps they might even be "true" ionic compounds as well. Seeing as how PtF6 can oxidize oxygen (0) to oxygen (1/2) and xenon to xenon (II), it certainly has at least a chance of oxidizing Be to Be2+. I added the word "binary" to emphasize that we are only talking about binary ...
Ammonium bifluoride, as its name indicates, contains an ammonium cation ([NH 4] +), and a bifluoride (or hydrogen difluoride) anion ([HF 2] −).The triatomic bifluoride anion features a strong three-center four-electron bond with a bond energy greater than 155 kJ/mol, [2] and an H-F length of 114 pm. [3]
Organoberyllium chemistry involves the synthesis and properties of organometallic compounds featuring the group 2 alkaline earth metal beryllium (Be). [2] The area remains less developed relative to the chemistry of other main-group elements , because Be compounds are toxic and few applications have been found.
Molten FLiBe flowing; this sample's green tint is from dissolved uranium tetrafluoride.. FLiBe is a molten salt made from a mixture of lithium fluoride (LiF) and beryllium fluoride (BeF 2).