# Center only one value of a table

Any way to center "ID" on the table below?

\begin{tabular}{|l|c|c|}
\hline
\centering{ID}          & \multicolumn{2}{c|}{\textbf{RM1}}                      \\ \hline
& $\Delta G^\circ_{cosmo}$ & $\Delta G^\circ_{cosmo-SS}$ \\ \hline
CCref                                &                          &                             \\ \hline
\end{tabular}


I tried \centering{ID} but it doesn't work. Also tried \centerline but doesn't work.

• Just use \multicolumn{1}{|c|}{ID} – Mico Sep 8 '17 at 21:22
• also _{cosmo} should be _{\textrm{cosmo}} – David Carlisle Sep 8 '17 at 21:23
• @Mico good. Post it as an answer, or I can remove the question if it is too stupid – user134500 Sep 8 '17 at 21:23
• @DavidCarlisle oh you are right, thanks. I must change all the tables. I will try with ctrl H – user134500 Sep 8 '17 at 21:24

I suggest you write

\multicolumn{1}{|c|}{ID}


By the way, \centering is a switch and doesn't take an argument.

A full MWE:

\documentclass{article}
\usepackage{amsmath} % for appropriate sizing of \textrm
\begin{document}
\begin{tabular}{|l|c|c|}
\hline
\multicolumn{1}{|c|}{ID} & \multicolumn{2}{c|}{\textbf{RM1}}                      \\
\hline
& $\Delta G^\circ_{\textrm{cosmo}}$ % per David C.'s suggestion
& $\Delta G^\circ_{\textrm{cosmo-SS}}$ \\ \hline
CCref  &  &  \\ \hline
\end{tabular}
\end{document}

• great, thanks Mico. I will accept in 6 minutes ;) – user134500 Sep 8 '17 at 21:27