如何在表中很好地对齐 chemfig 结构？

Question

我正在尝试将分子结构 (chemfig) 放置在如图所示的表格中。但是，即使使用多行 (参见 MWE)，该结构也会占用下一行的垂直空间。如何将结构放置在表格中，使其在单元格中整齐对齐？

平均能量损失

\documentclass[onecolumn, 12 pt, doublespace, fullpage, letterpaper]{report}
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage{longtable}
\usepackage{threeparttablex}
\usepackage{multirow}
\usepackage{multicol}
\usepackage{siunitx}
\usepackage[table]{xcolor}
\usepackage{chemfig}


\begin{document}
\begin{table}[H]
\centering
\begin{threeparttable}
\caption{Fuel properties of $iso$-cetane}
\label{tab:ap_fuel_property_iso_cetane}
\begin{tabularx}{1.0\textwidth}{lcc}
\toprule
Test                                                   & Result & Method                      \\
\toprule
\multirow{2}{*}{Chemical structure}                    &        &
\multirow{2}{*}
{
    \begin{minipage}{0.33\textwidth}
        \setbondstyle{line width=1pt}\chemfig{
           % 1
        -[:270,0.75]% 2
              (
        -[:210,0.75]% 3
        -[:150,0.75]% 4
                  (
            -[:210,0.75]% 6
                  )
                  (
            -[:150,0.75]% 7
                  )
         -[:90,0.75]% 5
              )
    -[:330,0.75]% 8
     -[:30,0.75]% 9
              (
      -[:112.5,0.75]% 10
              )
              (
       -[:67.5,0.75]% 11
              )
    -[:330,0.75]% 12
     -[:30,0.75]% 13
              (
         -[:90,0.75]% 14
              )
              (
         -[:30,0.75]% 16
              )
    -[:330,0.75]% 15
}
    \end{minipage}
}                                                                                             \\
                                                       &        &                             \\
Molecular weight [\si{\kilogram\per\mol}]              & 114.2  &                             \\
Density [\si{\kilogram\per\cubic\metre}]               & 690  &                             \\
\bottomrule
\end{tabularx}
\end{threeparttable}
\end{table}
\end{document}

Answer 1

这是你想要的吗？不multirow– 一个简单的\addlinespace。我还加载了caption包，以便在上面的标题和表格之间留出适当的间距：

\documentclass[onecolumn, 12 pt, doublespace, fullpage, letterpaper]{report}
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage{longtable}
\usepackage{threeparttablex}
\usepackage{multirow, caption}
\usepackage{multicol}
\usepackage{siunitx}
\usepackage[table]{xcolor}
\usepackage{chemfig}


\begin{document}

\begin{table}[!h]
\centering
\begin{threeparttable}
\caption{Fuel properties of $iso$-cetane}
\label{tab:ap_fuel_property_iso_cetane}
\begin{tabularx}{1.0\textwidth}{lcc}
\toprule
Test & Result & Method \\
\toprule
Chemical structure & &
    \begin{minipage}{0.33\textwidth}
        \setbondstyle{line width=1pt}\chemfig{
           % 1
        -[:270,0.75]% 2
              (
        -[:210,0.75]% 3
        -[:150,0.75]% 4
                  (
            -[:210,0.75]% 6
                  )
                  (
            -[:150,0.75]% 7
                  )
         -[:90,0.75]% 5
              )
    -[:330,0.75]% 8
     -[:30,0.75]% 9
              (
      -[:112.5,0.75]% 10
              )
              (
       -[:67.5,0.75]% 11
              )
    -[:330,0.75]% 12
     -[:30,0.75]% 13
              (
         -[:90,0.75]% 14
              )
              (
         -[:30,0.75]% 16
              )
    -[:330,0.75]% 15
}
    \end{minipage}
 \\
\addlinespace
Molecular weight [\si{\kg\per\mol}] & 114.2 & \\
Density [\si{\kilogram\per\cubic\m}] & 690 & \\
\bottomrule
\end{tabularx}
\end{threeparttable}
\end{table}

\end{document}