Search results
Results From The WOW.Com Content Network
POCl 3 can also act as a Lewis base, forming adducts with a variety of Lewis acids such as titanium tetrachloride: POCl 3 + TiCl 4 → POCl 3 ·TiCl 4. The aluminium chloride adduct (POCl 3 ·AlCl 3) is quite stable, and so POCl 3 can be used to remove AlCl 3 from reaction mixtures, for example at the end of a Friedel-Crafts reaction.
Lewis structure of a water molecule. Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.
The nature of the P–O bond was once hotly debated. Some discussions invoked a role for phosphorus-centered d-orbitals in bonding, but this analysis is not supported by computational analyses. In terms of simple Lewis structure, the bond is more accurately represented as a dative bond, as is currently used to depict an amine oxide. [3] [4]
An optimal Lewis structure can be defined as that one with the maximum amount of electronic charge in Lewis orbitals (Lewis charge). A low amount of electronic charge in Lewis orbitals indicates strong effects of electron delocalization. In resonance structures, major and minor contributing structures may exist. For amides, for example, NBO ...
Functioning as a Lewis acid, it can gain a fluoride ion from a strong base to yield a tetrafluorooxychlorate(V) anion: ClOF 4 − ion. [7] These include KClOF 4, RbClOF 4, and CsClOF 4. [8] This allows purification of ClOF 3, as at room temperature a solid complex is formed, but this decomposes between 50 and 70 °C. Other likely impurities ...
This Lewis basicity is exploited in the Kinnear–Perren reaction to prepare alkylphosphonyl dichlorides (RP(O)Cl 2) and alkylphosphonate esters (RP(O)(OR') 2). Alkylation of phosphorus trichloride is effected in the presence of aluminium trichloride give the alkyltrichlorophosphonium salts, which are versatile intermediates: [ 16 ]
Move over, Wordle, Connections and Mini Crossword—there's a new NYT word game in town! The New York Times' recent game, "Strands," is becoming more and more popular as another daily activity ...
The structure of the inorganic chloropolymer product (Poly(dichlorophosphazene)) comprises a linear – (N=P(−Cl) 2 −) n chain, where n ~ 15000. [ 2 ] [ 4 ] It was first observed in the late 19th century and its form after chain cross-linking has been called "inorganic rubber" due to its elastomeric behaviour.