[Tex/LaTex] Chemical equation in LaTeX

equations

I am trying to create an equation in LaTeX using the following code.

\delta{$^{66}$}Zn = \Bigg[ \frac{{($^{66}$Zn/ $^{64}$Zn)$_{sample}$}}{{( $^{66}$Zn/ $^{64}$Zn)$_{standard}$}} - 1 \Bigg] \times $1000\textperthousand$

When I run TeXWorks, I end up with a bunch of errors. The errors look like

! Missing $ inserted.
<inserted text> 
                $
l.11 \delta
           {$^{66}$}Zn = \Bigg[ \frac{{($^{66}$Zn/ $^{64}$Zn)$_{sample}$}}{{...

I am trying to reproduced the following figure with the permille symbol at the end of the equation. The \frac command does not seem to split the numerator and the denominator as shown in the figure.

enter image description here

Any help will be truly appreciated. Thanks.

Here is a MWE

\documentclass{article}
\usepackage{amsmath}
\usepackage{newtxtext,newtxmath,amsmath}
\begin{document}


\delta{$^{66}$}Zn = \Bigg[ \frac{{($^{66}$Zn/ $^{64}$Zn)$_{sample}$}}{{( $^{66}$Zn/ $^{64}$Zn)$_{standard}$}} - 1 \Bigg] \times $1000\textperthousand$


\end{document}

Best Answer

You should use the mhchem package, which eases typesetting chemical reactions/compounds. If the chemgreek package is installed, mhchem will load it so as to have upright greek letters:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[TS1,T1]{fontenc}
\usepackage{amsmath}
\usepackage{newtxtext,newtxmath,amsmath}
\usepackage{mhchem, textcomp}

\begin{document}

\[ \ce{\delta^{66} Zn} = \left[ \frac{\bigl(\ce{^{66}Zn}/\ce{^{64}Zn}\bigr)_\text{sample}}{\bigl(\ce{^{66}Zn}/ \ce{^{64}Zn}\bigr)_\text{standard}} - 1 \right] \times 1000\,\text{\textperthousand} \]

\end{document}

enter image description here

Related Solutions

[Tex/LaTex] Chemical equation with “●” symbol

With ● you probably mean the Lewis representation of an electron?

You mention the chemist package which is part of XyMTeX. XyMTeX has the commands \chemradicalA[]{} and \chemradicalB[]{} for denoting lewis electrons. They are described in XyMTeX's new manual (published only a few weeks ago to CTAN, 790 pages long!) section 23. Lone Pairs and Radicals.

\documentclass{article}
\usepackage{chemist,xymtex}
\begin{document}

\begin{center}
  \ChemForm{%
    RO\chemradicalA[2]{O} \, + \, AH
    \reactrarrow{0pt}{1cm}{}{}
    ROOH \, + \, \chemradicalA[2]{A}
  }\\
  \ChemForm{%
    RO\chemradicalB[1]{O} \, + \, AH
    \reactrarrow{0pt}{1cm}{}{}
    ROOH \, + \, \chemradicalB[1]{A}
  }
\end{center}

\end{document}

enter image description here

Here are a few alternative possibilities using other packages than XyMTeX:

\documentclass{article}
\usepackage[version=3]{mhchem}
\usepackage{chemformula}[2013/11/04]
\usepackage{chemfig}

\newcommand*\pkg[1]{\texttt{#1}}
\begin{document}

\pkg{mhchem}:\par
\ce{ROO. + AH -> ROOH + A.} (actually wrong)\par
\ce{ROO^. + AH -> ROOH + A^.}

\pkg{mhchem} and \pkg{chemfig}:\par
\ce{\Lewis{0.,ROO} + AH -> ROOH + \Lewis{0.,A}}

\pkg{chemformula}:\par
\ch{ROO. + AH -> ROOH + A.} (actually wrong)\par
\ch{ROO^. + AH -> ROOH + A^.}\par
\ch{"\chlewis{0.}{ROO}" + AH -> ROOH + "\chlewis{0.}{A}"} (needs an up to date
version)

\pkg{chemformula} and \pkg{chemfig}:\par
\ch{"\Lewis{0.,ROO}" + AH -> ROOH + "\Lewis{0.,A}"}

\pkg{chemfig}\par
\schemestart
  \Lewis{0.,ROO} \+ AH
  \arrow
  ROOH \+ \Lewis{0.,A}
\schemestop

\end{document}

enter image description here

The versions without chemfig (except the one with \chlewis) are not completely correct as they actually are typesetting the adduct dot and not an electron (the wrong spacing in the chemformula-only version tells it...)

[Tex/LaTex] How to include a chemical reaction in the equation numbering

You can use numberwithin{equation}{section}:

    \documentclass[12pt]{article}
    \usepackage{amsmath}
    \usepackage{chemmacros}
    \begin{document}

    \numberwithin{equation}{section}
    \begin{align}
        \ch{S + E <>[ $k_{\mathrm{SI}}$ ][ $k_{\mathrm{IS}}$ ] E.I <>[                 $k_{\mathrm{PI}}$ ][ $k_{\mathrm{IP}}$ ] P + E}
    \end{align}

    \begin{equation} \label{}
         K_{D} = \frac{[A][B]^{N_{max}}}{[AB_{N_{max}]}} = \frac{k_{off}}        {k_{on}}.
    \end{equation}

    \end{document}

Best Answer

Related Solutions

[Tex/LaTex] Chemical equation with “●” symbol

[Tex/LaTex] How to include a chemical reaction in the equation numbering

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