A package for drawing 2D molecules using the TikZ package.
2
votes
2answers
49 views
Chemfig - Name some compounds under a single label
I know within the chemfig package compounds can be named with the command \chemname. Is there a way to label some compounds under a single label? For example, put a label "Reactants" under the ...
1
vote
1answer
44 views
Chemfig - Proper Vertical Aligning in Chemical Reactions
I have the following chemical equation in Chemfigs:
\documentclass{article}
\usepackage{chemfig,chemmacros}
\begin{document}
\schemestart
2
\chemfig{-[:30](=[:90]O)-[:-30]OH}
\arrow
...
3
votes
1answer
53 views
List of schemes, caption and lining up the reaction in chemfig
I have several question regarding LaTeX and chemfig.
My first question is :
how to create a list of schemes similar to \listoftables and \listoffigures so I can add my reaction schemes to newly ...
0
votes
0answers
51 views
Generate png images of chemical structure using LaTeX, dvipng and chemfig
How to generate .png images of chemical structure using LaTeX, dvipng & chemfig ?
What packages need to be included ?
Is there any reference article for same ?
2
votes
3answers
78 views
How to scale a scheme in chemfig, using the figure environment
I am trying to scale a reaction scheme generated with chemfig to .9/textwidth. Below is my MWE.
\documentclass{report}
\usepackage{chemfig}
\usepackage[version=3]{mhchem}
\begin{document}
...
1
vote
1answer
90 views
Chemfig, TikZ, circle diagram
I have a problem with drawing such a complex diagram in using Chemfig (a picture of diagram should be attached) . The Chemfig manual describes how to draw curved and U-type arrows but all my attempts ...
3
votes
1answer
81 views
How can I fix this overfull hbox?
\documentclass[10pt]{article}
\usepackage{chemfig}
\usepackage[margin=1.2in]{geometry}
\newcommand{\chem}{\setatomsep{2em}\chemfig}
\begin{document}
\begin{itemize}
\item[--] 1$^\circ$ Alcohol ...
5
votes
1answer
67 views
Chemfig new line reaction scheme
I just recently started using LaTeX and chemfig and have a question in regard with making a new line in the text below or above the reaction arrow. I am trying to place MW, 160C, 5min under Na2CO3, ...
7
votes
2answers
76 views
Chemfig package compatibility
Looking for help on the following problem:
I am trying to use chemfig package in my document, however after initial insertion had the following error:
!No room for a new \dimen.
I found No room ...
1
vote
1answer
38 views
Zero length bond in chemfig?
As you can clearly see in the high quality diagram above, I'm looking for a way to get the nitrogen and hydrogen bonded like that in chemfig.
5
votes
1answer
68 views
amino acids with chemfig, some bonds are falsely positioned
I produced all of the amino acids for my thesis, but Proline and Histidin keep bugging me. I would like to place the -= bond that is now from H to H+ in Histidin from N to N and the bond - from C ...
2
votes
1answer
83 views
Scaling molecules on top of arrow with chemfig
i've a problem with chemfig-package. I want to draw some mulecules above an \arrow{-U>}, but i can't scale them in the right way. Does anybody has an idea to work around or do I just made a ...
2
votes
2answers
71 views
Changing space between atoms in Chemabove
Consider this example:
\documentclass{memoir}
\usepackage{fontspec}
\usepackage{chemfig}
\usepackage{unicode-math}
\pdfmapline{+arial arial <8r.enc <sAarial.ttf}
\begin{document}
...
2
votes
0answers
84 views
Chemfig artifacts next to bonds
When drawing reaction schemes with chemfig I get unwanted small dots next to certain molecules. These dots remain the same size weither I zoom in the document or not.
\documentclass{article}
...
4
votes
1answer
99 views
How can I place H_2 on top of a N ? (aspartic and glutammic metal complexes)
Please consider the following code
\documentclass{article}
\usepackage{chemfig}
\newcommand*\circleatom[1]{\tikz\node[circle,draw,fill=green!30]{\printatom{#1}};}
\begin{document}
...
4
votes
1answer
95 views
Relative positioning of Lewis electrons in chemfig
I am defining a submolecule in chemfig (2,2'-bipyridine) and I want to show the lone pair of electrons on both the Nitrogens. (For those who care, I wish to show a coordination bond between the lone ...
2
votes
2answers
89 views
How can I float molecules in \chemfig around an element? (without the lines)
For example:
I just want to show that the H2O molecules are attracted to the Carbon atom. I can't find a way to remove the lines connecting the Oxygens to the Carbons or how to extend the Hydrogens ...
3
votes
1answer
86 views
Chemfig reaction to wide for twocolumn
For a paper I have to describe certain reactions. I am using the chemfig package to do this. The paper has to be two columns and this is where it goes wrong. When I compile this reaction:
...
3
votes
1answer
149 views
joining atoms in chemfig. Two adjacent molcules
This is a follow up of
drawing cellulose and aligning monomers in chemfig.
I'm trying to refine the structure adding some hydrogen bonds.
No problem with the intra-chain ones, but I cannot figure ...
9
votes
1answer
178 views
drawing cellulose and aligning monomers in chemfig
The problem I had to face yesterday was related to draw a cellulose molecule with chemfig.
In particular I'm not familiar with tikz, so I had problems in aligning the monomers.
I was used to ...
2
votes
0answers
71 views
Chemfig: colour entire atom or section of atom
I have a molecule (in this case a copolymer) where I would like to hilight the monomers by colouring a number of atoms. Is there a more efficient way to do this than colouring each atom and bond ...
5
votes
2answers
177 views
uncover chemfig molecule (in beamer)
I teach chemistry and wish to demonstrate drawing and naming of chemical structures
I use chemfig to draw my molecules and I can do that fine. However, in for example the molecule ...
5
votes
2answers
305 views
How to draw parentheses inside chemfig?
I have the following code:
\chemfig[][scale=0.6]{
CH_2=[:-30]CH-[:30]C(=[:90]O)-[:-30]O-[:30]CH_2CH_2-[:-30]O-[:30]C(=[:90]O)-[:-30]CH=[:30]CH_2
}
Which gives me this image:
Now I want to draw ...
5
votes
1answer
107 views
Problem with alignment
I have the following tikz code:
\schemestart
\chemname{\chemfig[][scale=0.6]{
...
2
votes
1answer
151 views
Define ring bond length in chemfig
How can one define the bond length for a ring system in chemfig? **6(-[,0.5]-[,0.5]-[,0.5]-[,0.5]-[,0.5]-[,0.5]) does not work, sadly.
EDIT:
The answer provided resizes the ring system, but not the ...
6
votes
1answer
108 views
Missing bond type in chemical rendering packages?
I've read all the questions regarding chemical structure rendering that I could find on this website. I've decided to use chemfig to render the structures.
One certain type of bond, illustrated ...
5
votes
1answer
174 views
Placement of caption in \chemfig via \chemname command - how to reset spacing
I'm trying to put a number of different molecule structures into one document with the help of the chemfig package. The package also allows to add the name of the compound to the structure as a ...
1
vote
2answers
173 views
alignment problem with the + sign in chemfig (zero width arrow)
I created two molecules in chemfig and would like to place a + mark vertically aligned in the middle between the two molecules. There is an example of this demonstrated in the manual (see the code), ...
3
votes
1answer
237 views
Chemfig: how to write vertically?
I am trying to create a reaction scheme using chemfig.
I can not understand though how to have text written vertically.
Say my set of reaction A+B -> AB, A+C ->AC
If I start writing
\startscheme
...
3
votes
2answers
133 views
Creating ethane using \chemfig
I was tinkering with chemfig package.
I created the macros
\documentclass{article}
\newcommand{\lmethyl}{C(-[2]H)(-[4]H)(-[6]H)}
\newcommand{\rmethyl}{C(-[2]H)(-[6]H)-H}
...
5
votes
1answer
244 views
How to draw ligands with different hapticities
In organometallic chemistry it's common to draw ligands that are not bound atom to atom. Common examples are ferrocene:
or Zeisse's salt:
Does anyone have a strategy for approaching structures ...
4
votes
1answer
304 views
Easy way to write below arrow (\arrow{-U>}) in chemfig?
I have been using chemfig for a while and I like it very much. But some small things I still can't do. Check this example:
\schemestart
...
5
votes
1answer
748 views
Easy way to draw atomic orbitals and integrate them into ChemFig structures
I'm looking for a method to draw molecules as skeleton structures via chemfig and include some atomic orbitals (i.e. s, p and d orbitals and some sp-hybrid orbitals too) into them (at positions where ...
6
votes
1answer
417 views
How to make a phenyl radical with chemfig?
I'm trying to make a phenyl radical using chemfig, so far I've used this code:
\chemfig{*6(-\Lewis{0.,}=-=-=)}
What I obtain however is this, with a "broken" angle in the phenyl:
How to obtain a ...
3
votes
1answer
218 views
How to modify just some nodes' styles in chemfig
In the following molecular drawing, I want to only circle the rightmost OH of the first molecule and the leftmost H of the second, to show that they are the ones that are involved in the formation of ...
15
votes
3answers
2k views
Easy chemical reactions
I'm trying to convert some of my lecture slides to LaTeX. What's the best way to convert a number of slides (similar to the one below) into nice notes? I am aware of mhchem and chemstyle, but I don't ...
9
votes
2answers
1k views
chemfig and lego-style molecule construction
Many biochemical molecules, such as nucleic acids for example, are composed by nature in a hierarchical fashion from a limited number of building blocks. It would be nice to replicate this approach ...
8
votes
2answers
362 views
Crossing bonds in chemfig
Sometimes, molecular structures have crossing bonds, and we want to indicate which bond is in the foreground. In the chemfig example below, I have done this by first drawing a thick, white bond to an ...
7
votes
2answers
404 views
How to number atoms using chemfig?
I need to number atoms using chemfig. I thought I could use \chembelow and \chemabove to place numbers above and below but adding these commands changes the look of the drawing and does not simply ...
2
votes
1answer
388 views
Where is the TexLive 2010 default package directory located in Windows 7 64-bit?
Where is the TexLive 2010 default package directory located in Windows 7 64-bit?
I'm led to believe it should be in C:\texlive\2010\texmf\tex\latex but that appears not to be the case and I cannot ...
5
votes
1answer
649 views
How can I get Lewis-like structures + illustrate electron transfer
I know about the existence of packages that allow Lewis structures but that is not the question. The question is how to illustrate radical reactions as depicted below. The solution would ideally be ...
