Mixing
Bonding in Zeise's salt
Clash Royale CLAN TAG#URR8PPP
up vote
2
down vote
favorite
I am not sure I completely understand the bonding in coordination compounds formed by donation of pi electron cloud by the ligands to the central atom.
For example, consider Ziese's salt:
I came across a question which asked the total number of sigma bonds in the salt. I expected the bond between ethene and platinum to be a sigma bond too because it appears as if it is formed by overlap of the orbitals along the axis and hence my answer was 9. But the answer given was 8 and the answer key didn't consider that bond as a sigma bond.
So is the bond between platinum and ethene a $pi$ bond? If yes, then how?
What orbitals are actually involved in that bond?
bond coordination-compounds valence-bond-theory crystal-field-theory
asked 5 hours ago
Abcd
2,3033929
add a comment |Â
up vote
2
down vote
favorite
I am not sure I completely understand the bonding in coordination compounds formed by donation of pi electron cloud by the ligands to the central atom.
For example, consider Ziese's salt:
I came across a question which asked the total number of sigma bonds in the salt. I expected the bond between ethene and platinum to be a sigma bond too because it appears as if it is formed by overlap of the orbitals along the axis and hence my answer was 9. But the answer given was 8 and the answer key didn't consider that bond as a sigma bond.
So is the bond between platinum and ethene a $pi$ bond? If yes, then how?
What orbitals are actually involved in that bond?
bond coordination-compounds valence-bond-theory crystal-field-theory
asked 5 hours ago
Abcd
2,3033929
I suppose they assumed that a bond is something that is between two atoms. The bond between platinum and ethene isn't.
– Ivan Neretin
5 hours ago
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I am not sure I completely understand the bonding in coordination compounds formed by donation of pi electron cloud by the ligands to the central atom.
For example, consider Ziese's salt:
I came across a question which asked the total number of sigma bonds in the salt. I expected the bond between ethene and platinum to be a sigma bond too because it appears as if it is formed by overlap of the orbitals along the axis and hence my answer was 9. But the answer given was 8 and the answer key didn't consider that bond as a sigma bond.
So is the bond between platinum and ethene a $pi$ bond? If yes, then how?
What orbitals are actually involved in that bond?
bond coordination-compounds valence-bond-theory crystal-field-theory
asked 5 hours ago
Abcd
2,3033929
I am not sure I completely understand the bonding in coordination compounds formed by donation of pi electron cloud by the ligands to the central atom.
For example, consider Ziese's salt:
I came across a question which asked the total number of sigma bonds in the salt. I expected the bond between ethene and platinum to be a sigma bond too because it appears as if it is formed by overlap of the orbitals along the axis and hence my answer was 9. But the answer given was 8 and the answer key didn't consider that bond as a sigma bond.
So is the bond between platinum and ethene a $pi$ bond? If yes, then how?
What orbitals are actually involved in that bond?
bond coordination-compounds valence-bond-theory crystal-field-theory
bond coordination-compounds valence-bond-theory crystal-field-theory
asked 5 hours ago
Abcd
2,3033929
asked 5 hours ago
Abcd
2,3033929
edited 5 hours ago
asked 5 hours ago
Abcd
2,3033929
asked 5 hours ago
Abcd
2,3033929
asked 5 hours ago
Abcd
2,3033929
2,3033929
I suppose they assumed that a bond is something that is between two atoms. The bond between platinum and ethene isn't.
– Ivan Neretin
5 hours ago
add a comment |Â
I suppose they assumed that a bond is something that is between two atoms. The bond between platinum and ethene isn't.
– Ivan Neretin
5 hours ago
I suppose they assumed that a bond is something that is between two atoms. The bond between platinum and ethene isn't.
– Ivan Neretin
5 hours ago
I suppose they assumed that a bond is something that is between two atoms. The bond between platinum and ethene isn't.
– Ivan Neretin
5 hours ago
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
3
down vote
The bond between $ce Pt $ and ethene is not purely a $sigma $ bond and also not a pure $pi $ bond. The bonding actually consists of a combination of both bonding and back-bonding effect.
If you look into the Molecular Orbital Diagram of Ethene, the picture will be more clear. For the formation of bond between the metal and the ligand, electrons from filled $pi $-bonding MO of ethene ($pi_b $) is donated to the vacant orbitals of Platinum. And electrons from the filled orbitals of $ce Pt $ is back-donated to the vacant $pi^*$ orbitals of ethene. Thus the bonding would have been a $sigma $ bond if the electrons are donated from a $sigma_b $ or $sigma_nb $ orbitals. But here the bonding mainly is $pi $ donation and $pi$ acceptance ( known as Synergic effect).
Thus, it would be better not to consider the bond as $sigma $ bond, but may be considered more of a $pi $ type but also not a pure one due to the back-bonding.
answered 4 hours ago
Soumik Das
3,177218
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
The bond between $ce Pt $ and ethene is not purely a $sigma $ bond and also not a pure $pi $ bond. The bonding actually consists of a combination of both bonding and back-bonding effect.
If you look into the Molecular Orbital Diagram of Ethene, the picture will be more clear. For the formation of bond between the metal and the ligand, electrons from filled $pi $-bonding MO of ethene ($pi_b $) is donated to the vacant orbitals of Platinum. And electrons from the filled orbitals of $ce Pt $ is back-donated to the vacant $pi^*$ orbitals of ethene. Thus the bonding would have been a $sigma $ bond if the electrons are donated from a $sigma_b $ or $sigma_nb $ orbitals. But here the bonding mainly is $pi $ donation and $pi$ acceptance ( known as Synergic effect).
Thus, it would be better not to consider the bond as $sigma $ bond, but may be considered more of a $pi $ type but also not a pure one due to the back-bonding.
answered 4 hours ago
Soumik Das
3,177218
add a comment |Â
up vote
3
down vote
The bond between $ce Pt $ and ethene is not purely a $sigma $ bond and also not a pure $pi $ bond. The bonding actually consists of a combination of both bonding and back-bonding effect.
If you look into the Molecular Orbital Diagram of Ethene, the picture will be more clear. For the formation of bond between the metal and the ligand, electrons from filled $pi $-bonding MO of ethene ($pi_b $) is donated to the vacant orbitals of Platinum. And electrons from the filled orbitals of $ce Pt $ is back-donated to the vacant $pi^*$ orbitals of ethene. Thus the bonding would have been a $sigma $ bond if the electrons are donated from a $sigma_b $ or $sigma_nb $ orbitals. But here the bonding mainly is $pi $ donation and $pi$ acceptance ( known as Synergic effect).
Thus, it would be better not to consider the bond as $sigma $ bond, but may be considered more of a $pi $ type but also not a pure one due to the back-bonding.
answered 4 hours ago
Soumik Das
3,177218
add a comment |Â
up vote
3
down vote
up vote
3
down vote
The bond between $ce Pt $ and ethene is not purely a $sigma $ bond and also not a pure $pi $ bond. The bonding actually consists of a combination of both bonding and back-bonding effect.
If you look into the Molecular Orbital Diagram of Ethene, the picture will be more clear. For the formation of bond between the metal and the ligand, electrons from filled $pi $-bonding MO of ethene ($pi_b $) is donated to the vacant orbitals of Platinum. And electrons from the filled orbitals of $ce Pt $ is back-donated to the vacant $pi^*$ orbitals of ethene. Thus the bonding would have been a $sigma $ bond if the electrons are donated from a $sigma_b $ or $sigma_nb $ orbitals. But here the bonding mainly is $pi $ donation and $pi$ acceptance ( known as Synergic effect).
Thus, it would be better not to consider the bond as $sigma $ bond, but may be considered more of a $pi $ type but also not a pure one due to the back-bonding.
answered 4 hours ago
Soumik Das
3,177218
The bond between $ce Pt $ and ethene is not purely a $sigma $ bond and also not a pure $pi $ bond. The bonding actually consists of a combination of both bonding and back-bonding effect.
If you look into the Molecular Orbital Diagram of Ethene, the picture will be more clear. For the formation of bond between the metal and the ligand, electrons from filled $pi $-bonding MO of ethene ($pi_b $) is donated to the vacant orbitals of Platinum. And electrons from the filled orbitals of $ce Pt $ is back-donated to the vacant $pi^*$ orbitals of ethene. Thus the bonding would have been a $sigma $ bond if the electrons are donated from a $sigma_b $ or $sigma_nb $ orbitals. But here the bonding mainly is $pi $ donation and $pi$ acceptance ( known as Synergic effect).
Thus, it would be better not to consider the bond as $sigma $ bond, but may be considered more of a $pi $ type but also not a pure one due to the back-bonding.
answered 4 hours ago
Soumik Das
3,177218
answered 4 hours ago
Soumik Das
3,177218
answered 4 hours ago
Soumik Das
3,177218
answered 4 hours ago
Soumik Das
3,177218
3,177218
add a comment |Â
add a comment |Â
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fchemistry.stackexchange.com%2fquestions%2f103126%2fbonding-in-zeises-salt%23new-answer', 'question_page');
);
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
I suppose they assumed that a bond is something that is between two atoms. The bond between platinum and ethene isn't.
– Ivan Neretin
5 hours ago