Linked Questions
40 questions linked to/from Why does F replace the axial bond in PCl5?
6
votes
1
answer
6k
views
Why are axial bonds are longer than equatorial bond in sp3d hybridized atoms?
Why are axial bonds are longer than equatorial bond in case of $\mathrm{sp^3d}$ hybridization? I have done some research but I can't seem to find the answer.
4
votes
1
answer
3k
views
Comparing SN2 reaction rate for phenacyl chloride and methyl chloride
KI in acetone undergoes $\mathrm{S_N2}$ reaction with (1) and (2). Compare the rates of the reactions.
Like many kinds of these questions there are many factors involved. One is the steric effect, ...
1
vote
2
answers
11k
views
Are there square planar complexes with sp2d hybridization?
We were taught (Under the section 'Valence Bond Theory') seven types of geometries a transition metal complex may assume and its corresponding hybridization states,
Linear - $\ce{sp}$
Trigonal planar ...
3
votes
1
answer
22k
views
Bond Lengths: Equatorial vs Axial in Trigonal Bipyramidal
Why is it that the axial bond length is less than equatorial bond length in $\ce{PF2Cl3}$ and $\ce{SF2Cl2}$ even though both have trigonal bi-pyramidal geometry?
I know that in general axial bond ...
9
votes
2
answers
755
views
Bonding in hypervalent molecules
I don't know where they go the electrons of the extended-valence in molecules like $\ce{SF6}$ or $\ce{PCl5}$ for instance because my teacher said that the d orbitals can't interact with s and p (or ...
14
votes
1
answer
2k
views
Bonding in Square Antiprismatic Compounds
Both $\ce{IF_8^-}$ and $\ce{XeF_8^{2-}}$ have (distorted) square antiprismatic geometries.
I've been wondering how to explain the bonding in such compounds. Hypercoordinate bonding (as used to ...
2
votes
1
answer
8k
views
Which species occupy the equatorial positions in VSEPR's trigonal bipyramidal and octahedral geometry
Which species (electronegative, double and triple bonded atoms, ions, lone pair etc.) occupy the equitorial position in the trigonal bipyramidal and octahedral geometry when we find the shape using ...
8
votes
1
answer
2k
views
What is θ in Bent's rule equation (%s - character)?
I was learning about Bent's Rule. I came across a formula
$$\cos\theta = \frac{s}{s-1}$$
I am quite confused about $\theta$. I know that it represents bond angle. But for a compound like $\ce{PCl5}$, ...
2
votes
2
answers
2k
views
Structure of AsF3Cl2
Since the molecule has 5 bonding pairs and zero lone pairs, the shape should be trigonal bipyramidal. But one thing i am confused about is which atom(s) will occupy the axial and the planar positions, ...
4
votes
2
answers
2k
views
Is ClH7 possible? [duplicate]
Chlorine can be $sp^3d^3$ hybridized.
If so, it can form $\ce{ClH_7}$ and then chlorine, being more electronegative, will have (-7) as its oxidation number. But we know that the oxidation number of $\...
3
votes
2
answers
1k
views
Structure of phosphorus pentachloride
Why is the shape of $\ce{PCl5}$ trigonal bipyramidal? All the $\ce{Cl}$ atoms must be at equal distances forming a star like shape. However, in the actual shape, the distance between the $\ce{Cl}$ ...
6
votes
2
answers
5k
views
Geometry of AsF5 molecule
Which of the following is the best description of the arrangement of fluorine atoms around the arsenic atom in a molecule of $\ce{AsF5}$?
(a) trigonal bipyramid
(b) octahedron
(c) tetrahedron
(d) ...
8
votes
1
answer
3k
views
Geometries of SCl2(OCH3)2 and SF2(OCH3)2
I am not able to understand the difference between structure of $\ce{SCl_{2}(OCH_{3})_{2}}$ and $\ce{SF_{2}(OCH_{3})_{2}}$.
I am already well versed with Molecular Orbital and VSEPR theories. I found ...
2
votes
1
answer
2k
views
Suggest possible structures for the compound PF3(Ph)(NMe2) using the NMR data
use these data to suggest the possible structure for the compound PF3(Ph)(NMe2):
19F Spectrum, two signals:
a doublet of doublets, J=56 and 819Hz, -39.5ppm, relative intensity 2
a doublet of ...
2
votes
1
answer
989
views
Would the lone pair be in the equatorial plane or the axial plane for bromine pentafluoride? [duplicate]
I've been learning chemical bonding and I'm confused about the structure of $\ce{BrF5}$.
It has a square bipyramidal geometry but a square pyramidal shape - I got that.
I don't get why the lone pair ...