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Questions tagged [chemistry]

{chemistry} is about typesetting chemical content.

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Chemical equation numbering inside and outside of tables

I am trying to make a table where I have a chemical reaction, additional information and I want to number that chemical reaction. This numbering cannot be the same as in the mathematical equations. I ...
Martin's user avatar
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1 answer
59 views

Using two subschemes in a single compound messes up output

In a simple chemical reaction (A + B → C), I'm trying to draw 2 vertical arrows, one exactly below the letter "A" and one exactly below the letter "B". chemfig's documentation ...
double-beep's user avatar
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.eps graphic scale to large when exporting from inkscape and ChemDraw

I'm currently trying to set up an latex document, where I include chemical reactions as .eps figures. With the help of the chemnum-package I replace temporary tags inside the figure. The drawings are ...
User's user avatar
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1 answer
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Problem with reaction mechanism in chemfig

Why these two arrows aren't in their places? First two chemmoves lines are in properly positions, and other two are something else and I can't find a problem in code. I compiled it few times. Also I'd ...
Michał Szymankiewicz's user avatar
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1 answer
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Text above bonding and bond angle

Taking this pictures as example, how can I display r_1, r_2 and theta_1 in my 'ABC' molecule in a similar way? \documentclass[12pt]{article} \usepackage{chemfig} \begin{document} \begin{figure}...
user3204810's user avatar
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5 answers
110 views

Writing nuclear reactions without the mhchem package

I would like to write nuclear reactions but not with the mhchem package because I have incompatibilities with other chemistry packages. How can I proceed for example to obtain this type: Thanks
Nicolas's user avatar
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1 vote
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29 views

Problems with chemnum and classicthesis [duplicate]

I'm preparing a master's thesis in organic chemistry and I wanted to use chemnum for numbering of chemical compounds on poststcript files. The problem is that when I use classicthesis, it makes the ...
Adrian's user avatar
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chemnum: incorrect hyperlinking of compound sublabels

I am using chemnum within the chemmacros package. When I use a compound with a sublabel, the hyperlink that is created only links to the first use of the main label (1) instead of the actual compound (...
user21101711's user avatar
2 votes
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Same sub label with same subID in chemnum

I didn't find how to achieve this in the documentation or if it is even possible. I know I could initialize all the sub labels every time, however, I'm wondering if it's possible to achieve this ...
Daniel's user avatar
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I'm having trouble using the Latex web, could you please help me with how to illustrate the formula below? I'm sorry, I'm new to using this website

\chemfig{H-C(-[2]H)(-[6]H)-C(-[2]H)(-[6]H)-\lewis{26,O}-H}\quad\quad\quad\quad\chemfig{H-\lewis{26,O}-H} \chemmove{\draw-,dashed..controls +(90:5mm) and +(90:5mm)..(O2);} \chemmove{\draw-,dashed.....
Shabrina Raihana's user avatar
3 votes
1 answer
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Alignment and chemical formula

I would like to write this with Latex as an example: Anode: H2 -> 2H+ + 2e- Cathode: 0.5O2 + 2e- + 2H+ -> H2O It does not work. Either Anode and Cathode are not aligned ...
Dominik S's user avatar
2 votes
0 answers
77 views

Redox half-reactions environment

Can someone help me write environment for redox half-reactions with exact alignment shown in the photo? Also, how to make that the lenght of the line is determined by the length of the longest ...
crvenikupus's user avatar
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1 answer
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Increase size of circle in aromatic ring while retaining ring size

Is it possible to increase the size of the circle in the aromatic ring (i.e. the circle is "closer" to the hexagon). Example: Current: Thank you!
Mann Bonn's user avatar
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1 answer
93 views

AMS Euler and italic variables [closed]

I prefer using the beautiful AMS Euler math font, but - as we all know - it is only upright. I was wondering that there were so few complaints about this fact. In Germany there's even a DIN standard ...
Sargos's user avatar
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4 votes
3 answers
571 views

Drawing chemistry rings with charges on them

I'm new to using chemfig. I'm trying to create chemistry handouts and I want to draw the tropylium cation: However I am unable to get the charge to come out of the ring. Any help would be appreciated....
algorhythm's user avatar
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0 answers
56 views

From chemfig to .mol file

Yes, I know this package can generate structure from .mol and SMILES files. I'd like to know: is it possible to follow the reverse path, i.e. once the structure has been drawn with chemfig, generate ...
user3204810's user avatar
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5 votes
3 answers
242 views

How to make a complex chemical diagram

I did everything possible to recreate this picture but I got stuck. My best result is SOOO far from perfect. \documentclass[border=1cm]{standalone} \usepackage{chemfig} \usepackage[utf8]{inputenc} %...
Максим Однорал's user avatar
3 votes
1 answer
265 views

Is there a difference between $\ce{}$ and \ce{}?

So with the mhchem package, I am able to write chemical equations conviniently. However, I am confused on whether \ce{} with dollar signs or without them are equivalent. The guides I've read told me ...
Jacob Lee's user avatar
3 votes
2 answers
196 views

Adjustments to the Fe2(CO)9 structure design with Chemfig

I'm trying to draw the structure of Fe2(CO)9 using chemfig, but I'm not getting the bridging ligands of the structure quite right. \documenteclass[]{article} \usepackage{chemfig} \begin{document} \...
PEDRO SOUSA's user avatar
4 votes
2 answers
368 views

Is it possible to center chemical equations by the arrow?

I created this reaction equation with: \documentclass[paper=a4, fontsize=11pt, toc=flat]{scrartcl} \usepackage[a4paper,left=3cm,right=2cm,top=3cm,bottom=3cm]{geometry} \usepackage[ngerman]{babel} \...
Hans's user avatar
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2 answers
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Suggest improvements to the following code (left align equations, use sans serif for variables in mathmode)

\documentclass[fleqn]{article} \usepackage{mathtools} \usepackage[extreme]{savetrees} \usepackage{cancel} \thispagestyle{empty} \renewcommand{\familydefault}{\sfdefault} \date{} \def\eq{\ =\ } \def\...
Nickotine's user avatar
  • 173
4 votes
2 answers
105 views

Can I specify the electron's position in the atom model for the bohr package?

I am preparing a presentation on Lewis dot structures. The package bohr is really good to make diagrams that help in visualizing the ionic and covalent bond. For the ionic bond I am quite happy with ...
Francisco Murphy Pérez's user avatar
1 vote
1 answer
150 views

How to make chemfig and xymtex chemical reaction equation look better?

I am trying to make my assignments look better. Here is the code and the current output: \documentclass{article} \usepackage[version=4,layout=stacked]{mhchem} \usepackage{graphicx} \usepackage{chemfig}...
Aman's user avatar
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2 votes
2 answers
130 views

Lewis structure with chemfig inside chemformula inside align?

Hi. I am creating a beamer presentation on Lewis dot structures. I got most of my code from this question (Draw Lewis structures like a book)... But then I got stuck with BH3...(3rd reaction). I am ...
Francisco Murphy Pérez's user avatar
0 votes
1 answer
72 views

Creating own environment for writing partial oxidation and reduction reactions [closed]

I was wondering if it is posssible to write my own environment for writing redox equations in form of: O: ... R: ... ___________________________ S: ... O stands for oxidation, R for reduction and S ...
crvenikupus's user avatar
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0 answers
68 views

How to redraw arrow diagrams from Word

I want to start usingLaTeX and to test the possibilities, I decided to redo some of my old work., I don’t know how to transfer some elements to LaTeX, though. Whenever there are such arrow diagrams (...
Максим Однорал's user avatar
4 votes
3 answers
209 views

What to do to align text with chemfig molecules?

I'd like the letters to be in the middle of structures. I know that the letters are in the place where the code of each structures begins, but I have no idea how to change it, without changing the ...
Michał Szymankiewicz's user avatar
1 vote
2 answers
54 views

I have a problem with arrows' tips in chemfig

Arrows' tips aren't in the accurate place, they are slightly shifted to the left. Does anyone have an idea how to fix it so that they could be in the middle? \documentclass{article} \...
Michał Szymankiewicz's user avatar
0 votes
1 answer
63 views

Completing the diagram using chemfig

I intend to draw the chemistry of the reaction as depicted below using chemfig. Here is what I have done studying examples: \documentclass{article} \usepackage{graphicx} \usepackage{chemfig} \begin{...
teddiclax's user avatar
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2 answers
68 views

misplaced group in chemfig with coloured atom and charge

I want to colour only the hydrogen atoms in a cyclic molecule using the Chemfig environment. The atoms are placed over a nitrogen atom, with a positive charge. But when y draw the molecule, the group &...
Juan Michalowski's user avatar
-3 votes
1 answer
124 views

How can I draw like this picture? [closed]

I can not make code for this picture.
Ghassan Hamad's user avatar
4 votes
2 answers
266 views

How can I put a withdrawing or donating group in an aromatic ring in chemfig?

I need to put an undetermined electron withdrawing or donating group in an organic molecule (an aromatic ring), using arrows instead of lines as bonds, but with the barbs just in the middle. This is ...
Juan Michalowski's user avatar
0 votes
0 answers
82 views

Problems with Overleaf?

I encountered an interesting problem where the following code executes well using Texstudio: % Preamble \documentclass[11pt]{article} % Packages \usepackage{graphicx, auto-pst-pdf} \usepackage{...
Rolu Rostl's user avatar
2 votes
1 answer
61 views

XyMTeX \lonepair causing errors

I am having increasing success with XyMTeX - but keep running into the same problem with specifying lone pair locations using either \lonepairA or \lonepairB. When ever I add optional locations for ...
Cam Lumsden's user avatar
0 votes
0 answers
45 views

XyMTeX ChemEquation alignment

I am trying to figure out how / why structures are aligned in XyMTeX - it's doing my head in. Why does this code generate this? \documentclass{article} \usepackage{xymtexpdf} \usepackage{xcolor} \...
Cam Lumsden's user avatar
5 votes
1 answer
291 views

Is XyMTeX still working for people?

I am trying to use XyMTeX for typesetting a variety of chemical reactions and keep getting errors, namely with \ChemEquation \LewisSbond \LewistetrahedralA or B electron shift arrows and Reaction ...
Cam Lumsden's user avatar
2 votes
1 answer
221 views

Two oxidation numbers above one element

I'm new to LaTeX and I have a problem. My code right now is: \documentclass[11pt,a4paper]{scrartcl} \usepackage[singlelinecheck=false]{caption} \usepackage{times} \usepackage{tabularx} \newcolumntype{...
Henss's user avatar
  • 25
2 votes
2 answers
71 views

Chemfig Scheme: wrong alignement of a reaction

I'm trying to use chemfig to put a reaction in my document, but the diferent molecules are missaligned. How I coul fix it? This is my code: \documentclass{article} \usepackage{chemfig} \usepackage{...
Juan Michalowski's user avatar
1 vote
1 answer
51 views

Signs outside brackets in the chemfig environment

I'm using chemfig environment inside Latex and I have a big molecule inside brackets. I need to put a plus sign outside the brackets. \chemleft( \chemfig{*6(---=--)} \chemright) (The plus sign must be ...
Juan Michalowski's user avatar
1 vote
2 answers
79 views

Mixing chemistry reaction and mathematics in equation

I would like to type a list of chemical reactions with their associated reaction constants, pH limits and redox potentials. The reaction would be on the left, with the reaction starting at the left ...
Aurélien Coillet's user avatar
2 votes
2 answers
259 views

How to draw arrows for organic mechanism

How can I draw the arrows for organic mechanism as in the attached pictures? An edited MWE from the answer below: \documentclass[a4paper, 10pt]{article} \usepackage[T1]{fontenc} \usepackage[utf8]{...
Ghassan Hamad's user avatar
0 votes
1 answer
136 views

Chemical equation with multiple arrows in multiple directions

I need to draw chemical equations with multiple arrows pointing out or in from a single "node". I tried rigging the curved arrow example given in the texdoc help for chemfig package. The ...
magguu's user avatar
  • 917
1 vote
1 answer
117 views

How to move a chemfig figure up or down

I want to centralize this equation: \documentclass{article} \usepackage{chemfig} \begin{document} % Tartaric acid code \chemfig{HO-[1](=[7]O)(-[2](-[3]OH)-[1](-[7]OH)(-[2](=[1]O)(-[3]OH)))} $$...
PEDRO SOUSA's user avatar
0 votes
1 answer
99 views

Chemical Formulae in fraction

I was trying to write an equation for equilibrium constant K, but I cannot put Fe(SCN)^2 in the fraction for some reasons. This is what my code was. K=\frac{\ce{[Fe(SCN)^2+]}}{\ce{[Fe^3+][SCN^-]}}
Liley's user avatar
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1 vote
1 answer
123 views

How to make a letter appear in italics while within \ce?

I'm trying to type the following equation: In LaTeX, I can recreate this as follows: \ce{Rate = k[A]^m[B]^n ...} Which comes out as But I would like for the k to be in italics, similar to how it ...
Mailbox's user avatar
  • 279
1 vote
1 answer
159 views

Layout chemfig/schemestart

for a report I'm currently writing I wanted to include some chemical reactions. Most of them are fairly easy to put into LaTeX but I'm having some trouble with the more complex reactions. A picture is ...
Joep's user avatar
  • 19
2 votes
0 answers
111 views

chemnum: compound referencing in scheme not possible using EPSF-3.0

Using the chemscheme and chemnum packages, I would like to number compounds in a chemical scheme as described in: https://www.overleaf.com/latex/templates/automatically-numbering-compounds-in-chemical-...
user21101711's user avatar
0 votes
2 answers
115 views

Represent a square of reactions with their reaction rates

I would love to be able to represent a network of reactions in a square like so (pardon the scribbling) note: I don't care about the squares around the nodes of the reaction, I can live without those....
Puff's user avatar
  • 103
0 votes
1 answer
151 views

Lewis structure with double bond

To determine the lewis structure of molecules, I used the method proposed here. But I am blocked for certain molecules such as dioxygen: How can I place double bonds and doublets on each atom? \...
Nicolas's user avatar
  • 1,277
2 votes
3 answers
223 views

How can I rotate a pentagon in chemfig?

I want to draw the following molecule (see figure below), but I don't know how to rotate the above pentagon: Here's my attempt to do draw it: \documentclass[12pt, a4paper]{article} \usepackage{...
Echelle-courte's user avatar

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