Questions tagged [structural-formula]
This tag should be applied to questions about structural diagrams - diagrams used to show the crude location of possible existent bonds and lone pairs of electrons in a chemical species. Do not use this tag if your question is about Lewis structures, use [lewis-structures] instead.
162
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What is the criss-cross C-N bond in furazolidone? [duplicate]
What is the cross C-N bond in the structure of furazolidone? I have never seen this notation before and couldn't find anything on it.
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1
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What do the arrows mean in the Structural Formula of Oxaliplatin? [duplicate]
What do the arrows mean in the Structural Formula of Oxaliplatin? I haven't seen these and couldn't find anything explaining them.
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1
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How to calculate oxidation number for silver hexafluorophosphate (AgPF6)? [closed]
I'm doing some exercise of assigning oxidation numbers and I am stuck with this compound:
$$\ce{AgPF6}$$
According to the guidelines fluorine is always -1. But how do I know how to split the +6 among ...
5
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1
answer
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From chemfig to .mol file/SMILES
I usually draw molecules using the markup language known as LaTeX. In particular, I use the chemfig package. I much prefer this method over WYSIWYG apps because it ...
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1
answer
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How many aldehydes and ketones can be formed from molecular formula C5H10O? [closed]
Question:
What are the possible aldehydes and ketones with molecular formula $\ce{C5H10O$ (including the stereoisomers)?
Answer: 5 aldehydes and 3 ketones
The degree of unsaturation of the compound ...
1
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2
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311
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Molecular orbital picture in conjugated molecules - double bonds
I am a not a chemistry student but a physics student. Nevertheless, I am quite familiar with molecular orbital theory and similar quantum chemistry concepts. However, I have problems understanding the ...
1
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1
answer
285
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Converting structures into Fisher projections
I am really struggling with converting pyrano/furanosides into their Fisher projection counterparts. Especially when they are drawn like in the shown projection. When do you know to connect the ...
0
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2
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117
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Shouldn't the Cl- be placed beside the charged N+ ion when writing the structural formula of Benzenediazonium chloride?
I found the structural formula of Benzenediazonium chloride written on a website:
I believe that the Cl- ion is stabilizing the N+ ion.
So, shouldn't the structural formula be written like the above ...
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1
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901
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How to draw the structural formula for 3-ethyl-5-methyl-3-heptene? [closed]
This is the kind of structural formula we need to draw:
I took help from Reddit. Here is the attempt:
I have done one more attempt:
Though the 4th carbon of the left condensed version needs to have ...
7
votes
1
answer
756
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Listing all possible structures for a given Markush structure automatically
I have Markush formulas described as mol blocks, v3000, even if that does not matter that much because I could convert it into another format if needed.
I need the possibility to automatically list ...
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1
answer
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Given type and number of carbon atoms and degree of unsaturation of a hydrocarbon, write structural formula
Write a structural formula of the hydrocarbon that contains 4 primary carbon atoms, 2 ternary carbon atoms, 3 quaternary carbon atoms, and has degree of unsaturation 3.
This has been given at the ...
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1
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Where are the C and H atoms in 1,3,3,3-Tetrafluoropropene? [closed]
I'm learning about refrigerants, and one refrigerant is R-1234ze, otherwise known as 1,3,3,3-Tetrafluoropropene.
On Wikipedia, it says that the chemical formula is $\ce{C_3H_2F_4}$. But, Wikipedia ...
2
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2
answers
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How to highlight the substructure of a molecule with thick red lines in RDKit as SVG (high res)
I have the following code:
...
12
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1
answer
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What's the difference between a 'centered' and 'side' double bond on a structural formula?
It's hard to explain since I don't know what you'd call this but here's what I mean:
You can see that the oxygen is drawn with two bonds centred on the diagram while the nitrogen has a single centred ...
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How to draw a skeletal formula with thick lines and high resolution? [duplicate]
Consider the caffeine molecule skeletal formula as depicted in the Wikimedia Commons .svg file. Suppose that I want to replicate this skeletal formula with a high resolution and thicker lines.
I have ...