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Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

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BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

Many structures of phosphorus-containing compounds are drawn with some P9O bonds. These bonds are not the typical π bonds we’ve considered, which involve the overlap of two p orbitals. Instead, they result from the overlap of a d orbital on the phosphorus atom with a p orbital on oxygen. This type of π bonding is sometimes used as an explanation for why H3PO3 has the first structure below rather than the second:

Chapter 20, Problem 100CP, Many structures of phosphorus-containing compounds are drawn with some P9O bonds. These bonds are

Draw a picture showing how a d orbital and a p orbital overlap to form a π bond.

Interpretation Introduction

Interpretation: Two structures of H3PO3 is given. A picture is to be drawn to show the overlapping of d orbital and p orbital in the first structure to form π bond.

Concept introduction: The bond that is formed due to side to side overlap is known as pie bond.

To determine: A pictorial representation to show the overlapping of d orbital and p orbital in the first structure of H3PO3 to form π bond

Explanation

Explanation

The given structure of H3PO3 is,

Figure 1

The atomic number of central atom phosphorous (P) is 15 and its electronic configuration is,

1s22s22p63s23p3

The valence electron of phosphorous is 5

The atomic number of oxygen (O) is 8 and its electronic configuration is,

1s22s22p4

The valence electron of oxygen is 6 .

The atomic number of hydrogen is 1 and its electronic configuration is,

1s1

The valence electron of hydrogen is 1 .

The formula of number of electron pairs is,

X=V+M±C2

Where,

  • X is the number of electron pairs.
  • V is the valence electrons of central atom

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