For a benzene shown in a skeletal structure, what does a substituent to the center of the ring mean?...
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This question already has an answer here:
Structural representation of substituted benzene
2 answers
I have seen diagrams with both the substituents attached to the benzene ring by the edges and other occasions directly to the delocalized ring. What does signify?
organic-chemistry aromatic-compounds notation
edited Apr 30 at 14:25
Karsten Theis
6,3961049
asked Apr 30 at 12:26
madeye moodymadeye moody
905
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marked as duplicate by Mithoron, Todd Minehardt, Tyberius, Waylander, Mathew Mahindaratne May 1 at 17:14
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
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This question already has an answer here:
Structural representation of substituted benzene
2 answers
I have seen diagrams with both the substituents attached to the benzene ring by the edges and other occasions directly to the delocalized ring. What does signify?
organic-chemistry aromatic-compounds notation
edited Apr 30 at 14:25
Karsten Theis
6,3961049
asked Apr 30 at 12:26
madeye moodymadeye moody
905
$endgroup$
marked as duplicate by Mithoron, Todd Minehardt, Tyberius, Waylander, Mathew Mahindaratne May 1 at 17:14
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
9
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It means "must be someplace there, dunno where exactly". Also, methanol group is not a thing at all; that's methoxy group.
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– Ivan Neretin
Apr 30 at 12:40
5
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Related: Structural representation of substituted benzene
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– Loong♦
Apr 30 at 12:44
add a comment |
$begingroup$
This question already has an answer here:
Structural representation of substituted benzene
2 answers
I have seen diagrams with both the substituents attached to the benzene ring by the edges and other occasions directly to the delocalized ring. What does signify?
organic-chemistry aromatic-compounds notation
edited Apr 30 at 14:25
Karsten Theis
6,3961049
asked Apr 30 at 12:26
madeye moodymadeye moody
905
$endgroup$
This question already has an answer here:
Structural representation of substituted benzene
2 answers
I have seen diagrams with both the substituents attached to the benzene ring by the edges and other occasions directly to the delocalized ring. What does signify?
This question already has an answer here:
Structural representation of substituted benzene
2 answers
organic-chemistry aromatic-compounds notation
organic-chemistry aromatic-compounds notation
edited Apr 30 at 14:25
Karsten Theis
6,3961049
asked Apr 30 at 12:26
madeye moodymadeye moody
905
edited Apr 30 at 14:25
Karsten Theis
6,3961049
asked Apr 30 at 12:26
madeye moodymadeye moody
905
edited Apr 30 at 14:25
Karsten Theis
6,3961049
edited Apr 30 at 14:25
Karsten Theis
6,3961049
edited Apr 30 at 14:25
Karsten Theis
6,3961049
6,3961049
asked Apr 30 at 12:26
madeye moodymadeye moody
905
asked Apr 30 at 12:26
madeye moodymadeye moody
905
asked Apr 30 at 12:26
madeye moodymadeye moody
905
905
marked as duplicate by Mithoron, Todd Minehardt, Tyberius, Waylander, Mathew Mahindaratne May 1 at 17:14
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Mithoron, Todd Minehardt, Tyberius, Waylander, Mathew Mahindaratne May 1 at 17:14
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
9
$begingroup$
It means "must be someplace there, dunno where exactly". Also, methanol group is not a thing at all; that's methoxy group.
$endgroup$
– Ivan Neretin
Apr 30 at 12:40
5
$begingroup$
Related: Structural representation of substituted benzene
$endgroup$
– Loong♦
Apr 30 at 12:44
add a comment |
9
$begingroup$
It means "must be someplace there, dunno where exactly". Also, methanol group is not a thing at all; that's methoxy group.
$endgroup$
– Ivan Neretin
Apr 30 at 12:40
5
$begingroup$
Related: Structural representation of substituted benzene
$endgroup$
– Loong♦
Apr 30 at 12:44
9
9
$begingroup$
It means "must be someplace there, dunno where exactly". Also, methanol group is not a thing at all; that's methoxy group.
$endgroup$
– Ivan Neretin
Apr 30 at 12:40
$begingroup$
It means "must be someplace there, dunno where exactly". Also, methanol group is not a thing at all; that's methoxy group.
$endgroup$
– Ivan Neretin
Apr 30 at 12:40
5
5
$begingroup$
Related: Structural representation of substituted benzene
$endgroup$
– Loong♦
Apr 30 at 12:44
$begingroup$
Related: Structural representation of substituted benzene
$endgroup$
– Loong♦
Apr 30 at 12:44
add a comment |
1 Answer
1
active
oldest
votes
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Here the bond connecting the substituent with the center of the ring suggests that the substituent may be located on any of the three positions (ortho-, meta-, para-). From Graphical representation standards for chemical structure diagrams (IUPAC Recommendations 2008), section GR-9.1 Small substituents [1, p. 393] (emphasis mine):
Parent structures with a substituent that is attached at one of several ring atoms may be depicted by drawing that substituent attached to a bond that extends into the center of a ring. In printed works, it is assumed that the substituent may then be attached to any of the ring atoms as is allowed by normal bonding rules. When working in electronic formats, it may be possible to specify that the substituent
can be attached to certain of the ring atoms and not to others, depending on the capabilities of the software being used. If more than one substituent may be independently connected to various ring atoms, the bonds attached to those substituents should both extend toward the center of the ring, but should not
themselves be connected to each other.
References
- Brecher, J. Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008). Pure and Applied Chemistry 2009, 80 (2), 277–410. https://doi.org/10.1351/pac200880020277. (Free Access)
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
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4
$begingroup$
For the sake of completeness, very related: Markush Structure.
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– Martin - マーチン♦
Apr 30 at 13:30
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Here the bond connecting the substituent with the center of the ring suggests that the substituent may be located on any of the three positions (ortho-, meta-, para-). From Graphical representation standards for chemical structure diagrams (IUPAC Recommendations 2008), section GR-9.1 Small substituents [1, p. 393] (emphasis mine):
Parent structures with a substituent that is attached at one of several ring atoms may be depicted by drawing that substituent attached to a bond that extends into the center of a ring. In printed works, it is assumed that the substituent may then be attached to any of the ring atoms as is allowed by normal bonding rules. When working in electronic formats, it may be possible to specify that the substituent
can be attached to certain of the ring atoms and not to others, depending on the capabilities of the software being used. If more than one substituent may be independently connected to various ring atoms, the bonds attached to those substituents should both extend toward the center of the ring, but should not
themselves be connected to each other.
References
- Brecher, J. Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008). Pure and Applied Chemistry 2009, 80 (2), 277–410. https://doi.org/10.1351/pac200880020277. (Free Access)
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
$endgroup$
4
$begingroup$
For the sake of completeness, very related: Markush Structure.
$endgroup$
– Martin - マーチン♦
Apr 30 at 13:30
add a comment |
$begingroup$
Here the bond connecting the substituent with the center of the ring suggests that the substituent may be located on any of the three positions (ortho-, meta-, para-). From Graphical representation standards for chemical structure diagrams (IUPAC Recommendations 2008), section GR-9.1 Small substituents [1, p. 393] (emphasis mine):
Parent structures with a substituent that is attached at one of several ring atoms may be depicted by drawing that substituent attached to a bond that extends into the center of a ring. In printed works, it is assumed that the substituent may then be attached to any of the ring atoms as is allowed by normal bonding rules. When working in electronic formats, it may be possible to specify that the substituent
can be attached to certain of the ring atoms and not to others, depending on the capabilities of the software being used. If more than one substituent may be independently connected to various ring atoms, the bonds attached to those substituents should both extend toward the center of the ring, but should not
themselves be connected to each other.
References
- Brecher, J. Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008). Pure and Applied Chemistry 2009, 80 (2), 277–410. https://doi.org/10.1351/pac200880020277. (Free Access)
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
$endgroup$
4
$begingroup$
For the sake of completeness, very related: Markush Structure.
$endgroup$
– Martin - マーチン♦
Apr 30 at 13:30
add a comment |
$begingroup$
Here the bond connecting the substituent with the center of the ring suggests that the substituent may be located on any of the three positions (ortho-, meta-, para-). From Graphical representation standards for chemical structure diagrams (IUPAC Recommendations 2008), section GR-9.1 Small substituents [1, p. 393] (emphasis mine):
Parent structures with a substituent that is attached at one of several ring atoms may be depicted by drawing that substituent attached to a bond that extends into the center of a ring. In printed works, it is assumed that the substituent may then be attached to any of the ring atoms as is allowed by normal bonding rules. When working in electronic formats, it may be possible to specify that the substituent
can be attached to certain of the ring atoms and not to others, depending on the capabilities of the software being used. If more than one substituent may be independently connected to various ring atoms, the bonds attached to those substituents should both extend toward the center of the ring, but should not
themselves be connected to each other.
References
- Brecher, J. Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008). Pure and Applied Chemistry 2009, 80 (2), 277–410. https://doi.org/10.1351/pac200880020277. (Free Access)
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
$endgroup$
Here the bond connecting the substituent with the center of the ring suggests that the substituent may be located on any of the three positions (ortho-, meta-, para-). From Graphical representation standards for chemical structure diagrams (IUPAC Recommendations 2008), section GR-9.1 Small substituents [1, p. 393] (emphasis mine):
Parent structures with a substituent that is attached at one of several ring atoms may be depicted by drawing that substituent attached to a bond that extends into the center of a ring. In printed works, it is assumed that the substituent may then be attached to any of the ring atoms as is allowed by normal bonding rules. When working in electronic formats, it may be possible to specify that the substituent
can be attached to certain of the ring atoms and not to others, depending on the capabilities of the software being used. If more than one substituent may be independently connected to various ring atoms, the bonds attached to those substituents should both extend toward the center of the ring, but should not
themselves be connected to each other.
References
- Brecher, J. Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008). Pure and Applied Chemistry 2009, 80 (2), 277–410. https://doi.org/10.1351/pac200880020277. (Free Access)
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
answered Apr 30 at 12:41
andselisk♦andselisk
20.9k773141
20.9k773141
4
$begingroup$
For the sake of completeness, very related: Markush Structure.
$endgroup$
– Martin - マーチン♦
Apr 30 at 13:30
add a comment |
4
$begingroup$
For the sake of completeness, very related: Markush Structure.
$endgroup$
– Martin - マーチン♦
Apr 30 at 13:30
4
4
$begingroup$
For the sake of completeness, very related: Markush Structure.
$endgroup$
– Martin - マーチン♦
Apr 30 at 13:30
$begingroup$
For the sake of completeness, very related: Markush Structure.
$endgroup$
– Martin - マーチン♦
Apr 30 at 13:30
add a comment |
9
$begingroup$
It means "must be someplace there, dunno where exactly". Also, methanol group is not a thing at all; that's methoxy group.
$endgroup$
– Ivan Neretin
Apr 30 at 12:40
5
$begingroup$
Related: Structural representation of substituted benzene
$endgroup$
– Loong♦
Apr 30 at 12:44