Planar structure trigonal

Three equivalent p -hybridized orbitals achieve maximum distance from one another when they arrange in a trigonal planar structure ... 

Bis(amido)-germylene and -stannylene react with [Pt(COD)2] to give the platinum(O) complexes [Pt(M NTMS 2)3], M = Ge or Sn.78 The stannylene complex has a trigonal-planar structure with Pt—Sn bond lengths of 2.47-2.50 A.79... 

The carbocation has a trigonal planar structure => It may react with a nucleophile from either the front side or the back side ... 

It should be clear that we can expect boron to form three equivalent covalent bonds with 120° bond angles. As a result, boron halides have the following trigonal planar structure (D3h symmetry). 

The H3+ ion has a trigonal planar structure. Rationalize this structure in terms of electron density within the structure. If one, two, or three H2 molecules add to the H3+ ion, where and how would they bond Sketch these structures. 

This structure is isoelectronic with (Si03)36 and (P03)33-. Gaseous S03 has a trigonal planar structure that has several contributing resonance structures. When the structure is drawn with only one double bond, the sulfur atom has a +2 formal charge that is relieved by stmctures having two double bonds. Therefore, multiple bonding is extensive. 

Boron trifluoride has a trigonal-planar structure. Formulate the bonding in terms of molecular orbitals for the Dsjj symmetry. In addition, construct wave functions for three equivalent sp2 hybrid orbitals, using the 2px, 2p, and 2s boron valence orbitals, which may be used to form three localized bonds with the three fluorines. Compare and contrast the molecular-orbital and the hybrid-orbital descriptions. 

Monomeric selenium trioxide (Se03) and tellurium trioxide (Te03) have a trigonal planar structure in the gas phase. In the solid state, Se03 forms cyclic tetramers (Se03)4, in which each Se atom connects two bridging O atoms and two terminal O atoms, with Se-Ob 177 pm and Se-Ot 155 pm (AX4 type). 

The absence of compounds that contain the simple H+ ion has been discussed here. However, the solvated species are not the only species known that contain H+ in some form. A series of cations have been identified in mass spectrometry that result from the attachment of a hydrogen molecule to H+. The simplest of these is the H3+ ion that has a trigonal planar structure. The electrostatic interaction of a proton with H2 occurs at the shared pair of electrons that can be shown as follows ... 

Addition of excess iodide to the insoluble Hgl2 results in the formation of soluble mercury iodo complex [Hgl3] , with a trigonal planar structure. The ion is solvated in water and converts to a tetrahedral structure. Further, addition of H leads to tetrahedral [Hg ] ". Reaction of iodide salts with Hg can be used to produce mercury iodo complexes. Other halide and pseudohalides also form [HgXj] and [HgX4] . The tetrahalo anions see Anion) are usually tetrahedral, while the trihalo ions readily add solvent molecules to form distorted tetrahedral or Trigonal Bipyramidal structures. 

Coordination number 3 also is more likely with d ions, with a trigonal-planar structure being the most common. Three-coordinate Au(I) and Cu(I) complexes that are... 

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