Calculating Hybridisation and Existence of a Compound with Boron

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Discussion Overview

The discussion revolves around the hybridization of boron in a compound and the existence of that compound, specifically focusing on the calculation of bond pairs and lone pairs, as well as the structural representation through Lewis diagrams. The scope includes theoretical aspects of hybridization and practical challenges in drawing Lewis structures.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants propose that the hybridization of boron can be calculated to be sp, but express doubt about the existence of the compound due to boron's electron deficiency.
  • One participant suggests drawing the Lewis structure as a method to clarify the doubts regarding hybridization and existence.
  • Another participant mentions sodium perborate as an example, indicating that the Lewis structure does not support sp hybridization for boron in that compound.
  • A later reply suggests that the hybridization is actually sp² and questions whether the structure is planar.
  • One participant contests the planarity, arguing that boron has more sp³ character and encourages checking the Lewis structure for further analysis.
  • There is a mention of the existence of BO3- and a clarification that BO3³- does exist, prompting a suggestion to verify the formula with an instructor.
  • A humorous note is made about the distinction between chemical and empirical formulas, indicating potential confusion in the discussion.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the existence of certain boron compounds and the correct hybridization. Multiple competing views on the hybridization and planarity of boron in these compounds remain unresolved.

Contextual Notes

Limitations include potential misunderstandings of chemical formulas, the need for clarification on the existence of specific boron species, and unresolved steps in calculating bond pairs and lone pairs.

Physics lover
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Homework Statement
The question asked the hybridisation and shape of ##BO_3^-##
Relevant Equations
N=##(X+Y-C+A)/2##
where C is positive charge on the compound
A is negative charge on the compound
X is valence electrons of central atom
Y is no. of univalent side atoms.
If N=2,then sp.
One would easily calculate its hybridisation by the above formula which comes out to be sp.
But my doubt is that will the compound even exist?As boron will become electron deficient and how we will calculate no. of bond pairs and lone pairs.Please clear my doubt.
 
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Physics lover said:
One would easily calculate its hybridisation by the above formula which comes out to be sp.
But my doubt is that will the compound even exist?As boron will become electron deficient and how we will calculate no. of bond pairs and lone pairs.Please clear my doubt.

Have you tried to draw the lewis structure??
 
Javier0289 said:
Have you tried to draw the lewis structure??
yes not able to draw it,that's why i asked here.
 
Physics lover said:
yes not able to draw it,that's why i asked here.
If your doubt is only the existence, there's sodium perborate. Check your notes and the formula because there isn't a sp Boron in the lewis structure of such compound
 
Javier0289 said:
If your doubt is only the existence, there's sodium perborate. Check your notes and the formula because there isn't a sp Boron in the lewis structure of such compound
Thanks i got it.It's ##sp^2## hybridised and i think it is planar too isn't it?
 
Physics lover said:
Thanks i got it.It's ##sp^2## hybridised and i think it is planar too isn't it?
I don't think is planar, the boron has more character $$sp^3$$... nevertheless you can check it out with the lewis structure in the internet and do an analysis (bond order, paired and unpaired electrons, etc)
 
Physics lover said:
Homework Statement: The question asked the hybridisation and shape of ##BO_3^-##

I don't think BO3- exists or if it does, it is not a very common species. [BO3]3- does exist, however. Perhaps you can clarify with your instructor if BO3- is the correct formula.
 
Ha ha! Formula for perborate this is...
Chemical formula is not the same as empirical formula. Tricksy, tricksy!
 

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