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Valence shell electron pair repulsion (VSEPR) theory (/ ˈ v ɛ s p ər, v ə ˈ s ɛ p ər / VESP-ər, [1]: 410 və-SEP-ər [2]) is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. [3]
PCl 3 + 3 H 2 O → H 3 PO 3 + 3 HCl. Phosphorus trichloride is the precursor to organophosphorus compounds. It reacts with phenol to give triphenyl phosphite: 3 PhOH + PCl 3 → P(OPh) 3 + 3 HCl (Ph = C 6 H 5) Alcohols such as ethanol react similarly in the presence of a base such as a tertiary amine: [9] PCl 3 + 3 EtOH + 3 R 3 N → P(OEt) 3 ...
O=PCl 3 + 3 H 2 O → O=P(OH) 3 + 3 HCl. Intermediates in the conversion have been isolated, including pyrophosphoryl chloride, O(−P(=O)Cl 2) 2. [9] Upon treatment with excess alcohols and phenols, POCl 3 gives phosphate esters: O=PCl 3 + 3 ROH → O=P(OR) 3 + 3 HCl. Such reactions are often performed in the presence of an HCl acceptor such ...
According to VSEPR theory, T-shaped geometry results when three ligands and two lone pairs of electrons are bonded to the central atom, written in AXE notation as AX 3 E 2. The T-shaped geometry is related to the trigonal bipyramidal molecular geometry for AX 5 molecules with three equatorial and two axial ligands.
Tesla last year abandoned plans to build a cheaper vehicle platform for the mass market, often called the Model 2, Reuters reported in April. Instead, Musk said the company will use its current ...
Early considerations of the geometry of hypervalent molecules returned familiar arrangements that were well explained by the VSEPR model for atomic bonding. Accordingly, AB 5 and AB 6 type molecules would possess a trigonal bi-pyramidal and octahedral geometry, respectively.
The company was weighed down in large part by a $5 billion operating loss at its Model E electric vehicle division. Ford's share price fell 6% to $9.53 in pre-market trading as investors digested ...
The recall involves Samurai-branded white-and-silver plastic mini smoke alarms, model number SM1, which is indicated on the packaging. Recalled Samurai Mini Smoke Alarm — front / Credit: U.S ...