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1 year ago

In the molecular orbital model of cyclobutadiene, how many -antibonding molecular orbitals are there?

Chemistry

1 answer:

Citrus2011 [14]1 year ago

4 0

There are one antibonding molecular orbitals present in molecular orbital model of c.

The cyclobutadiene has a pi system comprised of four individual atomic p - orbital and thus should have a four pi molecular orbitals. The compound is the prototypical antiaromatic hydrocarbon with 4 $\pi$ - electrons . Its rectangular structure is the result of jahn teller reaction which disorder the molecule and lowers its symmetry , converting the triplet to a singlet ground state. It is a small annulene . The delocalisation energy of the $\pi$ electrons of the cyclobutene is predicted to be zero .

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2 years ago

All organic compound soluble in WATEe and conduct electrically

Delvig [45]

Explanation:

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2 years ago

The compound adrenaline contains 56.7 % c, 6.56 % h, 28.37% o and 8.28 % n by mass. what is the empirical formula for adrenaline

-Dominant- [34]

Answer:- An empirical formula of adrenaline is $C_8H_1_1O_3N$ .

Solution:- Convert given percentages to moles and then calculate the mol ratio to get the simplest whole number ratio of moles of atoms which is the empirical formula of the compound.

$C=\frac{56.7}{12}$ = 4.725 mol

$H=\frac{6.56}{1}$ = 6.56 mol

$O=\frac{28.37}{16}$ = 1.773 mol

$N=\frac{8.28}{14}$ = 0.591 mol

let's calculate the mol ratio now. To calculate the mole ratio, we divide the moles of each by moleso f N as it's the least one:

$C=\frac{4.725}{0.591}$ = 8

$H=\frac{6.56}{0.591}$ = 11

$O=\frac{1.773}{0.591}$ = 3

$N=\frac{0.591}{0.591}$ = 1

So, an empirical formula of adrenaline is $C_8H_1_1O_3N$ .

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2 years ago

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A better explanation of these systems is given using molecular orbital theory.

<h3>What is the valence bond theory?</h3>

The valence bond theory hold that a bond is formed by the sharing of two electron in a covalent bond. This bond does not account for certain systems that occur in multiple bonded systems where the simple two electron bonding model does not suffice.

Thus, valence bond theory is inadequate for describing systems with multiple adjacent bonds that overlap, as in aromatic molecules. a better explanation of these systems is given using molecular orbital theory.

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1 year ago

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