DNA测序的时候有用。
$结构式：$
-
\usepackage{chemfig}
\begin{document}
\chemfig[atom sep=2em,cram width=2pt]{
%
HO-CH_2-[6,]
%
(-[2,1.2,,,transparent]) %上边界撑起来
(-[6,]H)
(-[0.75,1.2]O)
<[6.75,]
(-[6,1]H)
(-[2,0.8]H)
-[,,,, line width=2pt]
(-[6,]H)(-[2,0.8]H)>[1.25,](-[3.25,])
(-[6,]H)
(-[2,]H)
}
\end{document}• 环状透视式（哈沃斯投影式 / Haworth Projection）：呋喃型
\usepackage{chemfig}
\begin{document}
\chemname{
\chemfig[cram width=2pt]{
%5-6
(-[6,0.5]H)
(-[0.7,1.25]{\color{pink}O})
%6
(-[2,1.25,,]CH_2{\color{Cyan}OH}
% 上边界支撑
-[2,0.5,,,,transparent]
)
%4
<[6.75,](-[6,0.5]H)(-[2,0.5]H)
%3
-[,,,, line width=2pt](-[6,0.5,,]H)(-[2,0.5]H)
%2
>[1.25,](-[2,0.35]-[2,0.15,,,transparent]-[0,0.13,,,transparent]{\color{red}OH})(-[3.3,1.05])
%1
-[6,0.5]H
}
}{}
\end{document}^3
• 环状透视式（哈沃斯投影式 / Haworth Projection）：吡喃型
\usepackage{chemfig}
\definecolor{cpk_P}{rgb}{1.00, 0.50, 0.00} % P
\begin{document}
\chemname{
\chemfig[cram width=2pt]{
%[:-30]
%C4
(-[2,0.5]H)(-[6,0.35,,]-[6,0.15,,,transparent]-[4,0.13,,,transparent]{\color{pink}HO})
*6(
%C3
<(-[2,0.5]H)(-[6,0.5]H)
%C2
-[,1,,, line width=2pt](-[2,0.5]H)(-[6,0.5]H)
%C1
>(-[6,0.5]H)(-[2,0.35]-[2,0.15,,,transparent]-[0,0.15,,,transparent]{\color{red}OH})
-{\color{Cyan}O}-
%C5
-
)
}
}{}
\end{document}^4
• 链状透视式（费歇尔投影式 / Fischer Projection）
\usepackage{chemfig}
\begin{document}
\chemfig[atom sep=2em,cram width=2pt]{
(-[2,1.2,,,transparent])
(-H)(-[4,]H)(-[2,]CH{\color{red}O})
-[6,](-H)(-[4,]H)
-[6,](-{\color{pink}OH})(-[4,]H)(-[6]CH_2{\color{Cyan}OH})
}
\end{document}^1
-
\usepackage{chemfig}
\begin{document}
\chemfig{
(-[2,1.5,,,transparent]) %上支撑
(-[4.5,0.8]{\color{Cyan}HO}
% P
( % 上边界支撑
-[2,0.5,,,,transparent]
)
)
(-[7.5,0.8]
(<:[6,0.8]-[6,0.2,,,transparent]-[0,0.13,,,transparent]{\color{pink}OH})
(-[.5,0.8]
(-[7.5,0.8]
(-[.5,0.8]
=[7.5,0.8]{\color{red}O}
% P
(
% 上边界支撑
-[2,0.5,,,,transparent]
)
)
)
)
)
}
\end{document}^2