Questions tagged [chemistry]

{chemistry} is about typesetting chemical content.

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3answers
298 views

Draw a Frost circle in Latex

In chemistry, a Frost circle is a quick method to estimate the relative energy levels of the pi molecular orbitals in a cyclic compound and then based on electron placement judge its aromaticicity. I'...
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0answers
25 views

Alternative to auto-pst-pdf for chemnum

Does anyone know what I could use instead of auto-pst-pdf combined with chemnum to replace tags in eps-files? Since this week it doesn't work anymore. Pstool (\usepackage[mode=nonstop,crossref=true,...
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1answer
44 views

Chemfig - Forced departure and arrival atoms

I draw two different molceules for my thesis in ChemFig. \chemname{\chemfig{H_{2}N-[1]*6(=N-*5(-N(>*5(-O-(<-[4]O-[5]P(-[2]O)(-[3])=O)-(<:O-)-(<:OH)-))-=N-)=-(=O)-HN-)}}{molecule X} \...
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0answers
38 views

Vertical chemical reactions

Is there any way to write chemical reactions with vertical branching as done in the following image?
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1answer
11 views

How can I reset newtxtext superiors to “normal”/unscaled size?

When using newtxtext, superiors (used for, say, footnotes) are scaled a bit (per the documentation). However, the mhchem package produces subscripts/superscripts in chemical formulae that match the ...
1
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1answer
27 views

Cram bond appears off-centered

I have angled cram bond to a node with multiple atoms which appears off-centered as seen below with the hydroxyl group. Is there any adjustments so I can have the bond directed to the center of the ...
1
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1answer
57 views

Tikzpicture: Drawing a graph with curved and straight parts

I am trying to produce a graph displaying concentration vs. time for a chemical equilibrium. These graphs look something like this (though note that this is just an example, not what I specifically ...
2
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1answer
53 views

Font and internal line for chemistry package

Using chemfig package, for drawing the salicylic acid I obtain this crop image: \documentclass[a4paper,12pt]{article} \usepackage{chemfig} \begin{document} \chemfig{ % 1 -[:300]% 2 ...
3
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1answer
64 views

chemfig: enhancing code

I am reproducing the structure of the glass silicate lattice, where an oxygen atom bridges two silicon atoms \documentclass[12pt]{article} \usepackage[T1]{fontenc} \usepackage{lmodern} \usepackage{...
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3answers
48 views

Table width issue in two-column document

column document. I am trying to insert a table, but my table is going out to the page and all I see is about half of the full table . The code is below. How I can fix this issue? \begin{table*}[!htbp] ...
1
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1answer
38 views

How to draw a 'detached' ion with chemfig

What is the best way to have a 'detached but attracted' ion in chemfig? So I have a large molecule with a positive charge and want to position a negatively charged ion close by it. According to my ...
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0answers
29 views

How can I break line exceeding the margin?

Can some one tell me how can I break the link. from the margin. You can see in the figure that the chemical formula is exceeding the page margin. I am using the document class and the data is \...
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0answers
34 views

Undefined control sequence \mcfbelow when using chemfig in LaTeX

I came across an error when trying to incorporate a simple chemfig diagram in a document. Here is a minimal working example (the code for the diagram was generated using mol2chemfig): \documentclass{...
1
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1answer
65 views

Typesetting pH values

I'm using the siunitx package to typeset units. I don't believe that there is an option for pH values. I could define a new unit using e.g. \DeclareSIUnit{\pH}{pH}, but that would make the value come ...
2
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1answer
45 views

List of reactions within chapter

Using the chemmacros package, deploying the \listofreactions within a chapter preamble does not appear to have any effect. I would like to present a list of only those reactions appearing within the ...
1
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1answer
46 views

Including Graphics in reaction Environment

I want to include graphics from chemdraw etc. (i.e. .eps) within a reaction env of the chemmacros package. With this i I hope to achive usage of the same counter, labeling etc. used in the reaction ...
2
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1answer
55 views

Which package would produce a chemical equation hierarchy like this?

Trying to replicate this style of yield arrows I saw in a paper for when more than one product can be produced. Specifically the multiple dropped yield arrows. How would I do that in Tex? I have the ...
2
votes
1answer
57 views

Chemfig: set points at ends of bonds

I'm trying to represent the electrons in the bonds between atoms by drawing points at the end of each bond segment. Something like this: Is there any way I can do this? I can get something similar ...
1
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1answer
33 views

Chemical formulae with dopants / Formulae containing ”:“ [duplicate]

I'm trying to write some substances with dopants in them, e. g. ”InO2:Sn.“ Although I could split up the formula every time it contained a dopant, this wasn't really smart to do and I'd also get in ...
2
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1answer
108 views

Axis' discontinuity, value randomization and linear regression for log based Arrhenius plot

So I am attempting to create some simple sudo random data and plot the results with a trend line. Best fit linear approximation. I am trying to create something that looks like the graph below Here ...
2
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1answer
93 views

Parenthesis inside chemfig environment

How to display "(" or ")" inside chemfig environment. For example I what to write following chemical formula: My try, I used \text{(} and \text{)} to get "(" and ")" inside the chemfig environment. ...
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0answers
55 views

Chemfig example from documentation doesn't compile

I'm taking a chemfig example about the \charge macro and trying to copy, paste, and compile to get some practice with it. I get a Undefined control sequence error with a recently updated full TeX Live ...
2
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1answer
55 views

Hidden or background segment using chemfig package

In relation to this question How to create cram bonds with anchors, I wanted to put the segment in the background and the black triangle hiding it in the foreground. How is this possible with chemfig?...
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0answers
25 views

What is the best way to typeset a chemical formula using old IUPAC group numbers (roman numerals)?

I am using mhchem. I want to typeset Cu-III-VI2. Some ideas: \ce{Cu-III-VI2} Cu-III-\ce{VI2} Cu-III-$\textrm{VI}_2$ What's the right way?
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1answer
23 views

Why are the arrows in the chemical equation not full arrows?

I have the following code: \begin{equation} \ce e^- + ^{40}_{19}K -> ^{40}_{18}Ar^* + \Pgne -> ^{40}_{18}Ar + \Pgne + \gamma \end{equation} but in my document -> is not connected for a ...
3
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1answer
46 views

Chemscheme package interferes with captions

I would like a caption to be as close as possible to its figure. This can be easily achieved with \usepackage[skip=0pt]{caption}. However, this solution does not work if the package chemscheme is ...
2
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1answer
50 views

mhchem exponent - missing

I want to write the following formula: SeO_4^(2-). When I write it as suggested in the documentation of the LATEX package then the formula is worng and doubled and when I write it with extra brackets, ...
0
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1answer
53 views

two forms of chiral molecule

I need to draw a chiral molecule with CHEMFIG in two forms, one with the branches to the left and the other with the branches to the right. the shape with the branches to the right is easy, but with ...
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0answers
85 views

Lewis in chemformula

I want to create a picture representig a chloroethane molecule having all lone pairs on chlorine, also if possible, to create an arrow which transfers C-Cl bonding pair only on chlorine. Code done ...
2
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1answer
39 views

How to specify atom link on chemfig

So I am trying to draw the following reaction with chemfig, but for the triglyceride part, I can't get the H's to the left of the C. It just switches to bonding with the H. Please and thank you. \...
0
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1answer
44 views

How to adjust horizontal arrow length of a defined multi-directional arrow {-X>}?

So I'm using this piece of code I found for having arrows going off in different directions as part of some reaction schemes I'm putting together. I have been able to adjust the internal font sizes of ...
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3answers
113 views

Chemnum wont replace TMP markers in eps files

I'm new to latex but would really like to use it to write my dissertation (chemistry, obviously). Labwork is nearly done, but that seems to be the lower hurdle right now :D Right now, I'm trying to ...
1
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1answer
49 views

pgfplots: second axis with different scaling/ x coord trafo

I'm trying to fabricate a so-called Arrhenius-plot in pgfplots. Basically it is a semilogarithmic (y-Axis) plot where a temperature dependent function is plotted against 1/kB*T (kB beeing the ...
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0answers
28 views

Change the Font of a Chemical Structure from an .eps file in TexWorks

I am currently using TexWorks to write my lab report and I am using an .eps file to show a chemical structure. Below is the code in my report. \documentclass{article} \usepackage[utf8]{inputenc} \...
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0answers
42 views

Combining superfullcite with notes, prenotes and postnotes

I am currently making use of Joseph Wright's solution to printing footnote citations once (the first time they appear in text), and after this only print the citation number of a numeric citation ...
3
votes
1answer
99 views

Write crystals using mhchem properly

Usually I use the package mhchem for writing chemical formulas, but until now I was not able to find a solution for writing crystals such as Nd^{3+}:YAG properly with this package. When simply writing ...
3
votes
1answer
59 views

Labelling E and Z stereoisomers with chemnum

I am currently writing my chemistry thesis, which is significantly focused on photoisomerisation. I am using chemnum for compound number. For example, here is azobenzene photoisomerisation: As far ...
1
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1answer
54 views

How to align chemical reactions in multiple environments?

How do I align (by arrow) chemical reactions in different environments (between text)? Example: Two arrays. \begin{eqnarray} A & \longrightarrow & A' \\ B & \longrightarrow & ...
1
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3answers
143 views

Chemical formula - how can I write parentheses?

I want to write the following chemical equation in Latex: I'm trying to put the parentheses in (): \documentclass[fontsize=11pt]{article} \usepackage{braket} \usepackage{pdfpages} \usepackage{...
2
votes
1answer
209 views

How to draw a pH scale in latex

I am trying to display a pH scale in LaTeX but Im having trouble figuring it out. All the googling I have been able to do just brings up the pH levels of Latex the material. Can someone offer some ...
1
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2answers
130 views

Visualising enzym kinetics (Michaelis Menten model)

I'd like to make a diagram like the one shown in the picture. I am able to write the first row using the \ce{} function, but don't know how to continue. \ce{E + S <=>[k1][k_{-1}] & [ES] -&...
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1answer
171 views

Reaction numbering using chemformula [duplicate]

Can anyone please guide me to number the reactions separately from equation numbering, while using chemformula package.
3
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1answer
72 views

“3-way” reaction in LaTeX

I would like to write an equation with three different states, does anyone know how to do this?
7
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1answer
187 views

Coloring part of an equation in chemmacros

For a chemistry lecture handout, I would like to emphasize specific parts of a chemical equation written with chemmacros with colors; however, I have not been able to use common symbols such as +, -, ...
1
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1answer
88 views

Chemfig illustration in a tabular environment appears out of the box

I need to prepare a sum-up for my student. But when I mix chemfig with tabular environment, the Lewis structures are out of the box. How can I fix that? \documentclass[12pt]{article} % Type d'écrit \...
2
votes
1answer
262 views

tikz: molecular orbitals for ICl

While modiagram is bugged (LaTeX3 Error in MOdiagram package) I decide to make my own molecular orbitals diagram for iodine chloride ICl based on this. Could you suggest how to add the relative ...
4
votes
1answer
120 views

Incorrectly determined boundaries of a chemfig structure with arrow in outer area

It appears as if the TikZ arrow(s) set in \chemmove{…} environment are not taken into consideration when the boundary box for the chemfig structure, e.g. for an arrow pushing mechanism, is determined. ...
1
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1answer
114 views

More chemfig figures with fishhook arrows

I asked a similar question yesterday, but i havn't quite learned how to make these molecules yet. Therefore i'll see if there is a kind soul in here again today, who wants to help me with this one, ...
4
votes
2answers
301 views

Triple bond inside escaped chemfig formula within chemformula's reaction

I'm trying to include a molecular structure drawn with chemfig inside chemformula's reaction environment by escaping it with "…". It all worked fine until I stumbled upon a structure with a triple ...
5
votes
3answers
308 views

Special “chemical bond” symbol

I would like to use a symbol in a chemical reaction equation which represents a solid's surface. A common symbol used for this purpose is '>' or the \equiv symbol, but what I would like is actually ...

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