An energy diagram for the molecular orbitals of period 2 diatomic molecules should be drawn and the difference in ordering for B 2 , C 2 and N 2 should be compared to O 2 , F 2 and Ne 2 . Concept introduction: MOT is more accurate theory than VBT . VBT fails to explain the magnetic behavior and bonding in electron-deficient compound. According to this theory, atomic orbitals combine to form molecular orbitals. The number of the molecular orbital is equal to atomic orbital according to this theory. ( i ) The molecular orbitals are formed by the linear combination of atomic orbitals. There are two type of combination ( a ) constructive ( b ) destructive interference ( ii )Molecular orbitals formed by constructive interference is known as bonding molecular orbital, and its energy is less than atomic orbital ( iii ) Molecular orbital formed by destructive interference is known as anti bonding molecular orbital and its energy is greater than atomic orbital. ( iv ) Electrons in molecular orbitals are filled according to Aufbau’s rule, Pauli’s Exclusion Principle, and Hund’s rule.
An energy diagram for the molecular orbitals of period 2 diatomic molecules should be drawn and the difference in ordering for B 2 , C 2 and N 2 should be compared to O 2 , F 2 and Ne 2 . Concept introduction: MOT is more accurate theory than VBT . VBT fails to explain the magnetic behavior and bonding in electron-deficient compound. According to this theory, atomic orbitals combine to form molecular orbitals. The number of the molecular orbital is equal to atomic orbital according to this theory. ( i ) The molecular orbitals are formed by the linear combination of atomic orbitals. There are two type of combination ( a ) constructive ( b ) destructive interference ( ii )Molecular orbitals formed by constructive interference is known as bonding molecular orbital, and its energy is less than atomic orbital ( iii ) Molecular orbital formed by destructive interference is known as anti bonding molecular orbital and its energy is greater than atomic orbital. ( iv ) Electrons in molecular orbitals are filled according to Aufbau’s rule, Pauli’s Exclusion Principle, and Hund’s rule.
Solution Summary: The author explains that MOT is more accurate than VBT, which fails to explain the magnetic behavior and bonding in electron-deficient compound.
Definition Definition Theory that explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. VBT gives a quantum mechanical approach to the formation of covalent bonds with the help of wave functions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
Chapter 7, Problem 19E
Interpretation Introduction
Interpretation:
An energy diagram for the molecular orbitals of period 2 diatomic molecules should be drawn and the difference in ordering for B2, C2 and N2 should be compared to O2, F2 and Ne2.
Concept introduction:
MOT is more accurate theory than VBT. VBT fails to explain the magnetic behavior and bonding in electron-deficient compound. According to this theory, atomic orbitals combine to form molecular orbitals. The number of the molecular orbital is equal to atomic orbital according to this theory.
(i) The molecular orbitals are formed by the linear combination of atomic orbitals. There are two type of combination (a) constructive (b) destructive interference
(ii)Molecular orbitals formed by constructive interference is known as bonding molecular orbital, and its energy is less than atomic orbital
(iii) Molecular orbital formed by destructive interference is known as anti bonding molecular orbital and its energy is greater than atomic orbital.
(iv) Electrons in molecular orbitals are filled according to Aufbau’s rule, Pauli’s Exclusion Principle, and Hund’s rule.
From the given compound, choose the proton that best fits each given description.
a
CH2
CH 2
Cl
b
с
CH2
F
Most shielded:
(Choose one)
Least shielded:
(Choose one)
Highest chemical shift:
(Choose one)
Lowest chemical shift:
(Choose one)
×
Consider this molecule:
How many H atoms are in this molecule?
How many different signals could be found in its 1H NMR spectrum?
Note: A multiplet is considered one signal.
For each of the given mass spectrum data, identify whether the compound contains chlorine, bromine, or neither.
Compound
m/z of M* peak
m/z of M
+ 2 peak
ratio of M+ : M
+ 2 peak
Which element is present?
A
122
no M
+ 2 peak
not applicable
(Choose one)
B
78
80
3:1
(Choose one)
C
227
229
1:1
(Choose one)
Chapter 7 Solutions
Chemistry: Structure and Properties Custom Edition for Rutgers University General Chemistry
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Quantum Molecular Orbital Theory (PChem Lecture: LCAO and gerade ungerade orbitals); Author: Prof Melko;https://www.youtube.com/watch?v=l59CGEstSGU;License: Standard YouTube License, CC-BY