Saturday, February 8, 2014

chemfig

Apa yang Anda gunakan ketika harus menggambarkan struktur molekul seperti tampak pada gambar di samping?
Tulisan kali ini tentang paket yang sangat berguna untuk hal itu, yang dibuat oleh Christian Tellechea, yaitu paket chemfig v1.0h yang dirilis 28 November 2013.

Di bawah ini saya tampilkan contoh pengkodean dan dokumen tentang penggunaan paket chemfig. Dokumen tersebut saya tulis dengan menggunakan $\small\LaTeX$ melalui writeLaTeX dalam template gridleno dari Gonzalo Medina. Petunjuk penggunaan perintah-perintah dalam chemfig dapat Anda unduh di sini.

Demikian semoga bermanfaat!

Adjie Gumarang Pujakelana 2014

\documentclass[twocolumn,12pt]{article}
\title{ChemFig}
\usepackage[indonesian]{babel}
\usepackage{xcolor}
\usepackage[tikz]{bclogo}
\definecolor{bgblue}{RGB}{245,243,253}
\definecolor{biru}{cmyk}{1,.60,0,.40}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[fontsize=12pt,baseline=14pt]{grid}
\usepackage[top=5.5cm,
  bottom=2.5cm,
  left=2.5cm,
  right=2.5cm,
]{geometry}
\usepackage{emerald}
\usepackage{verbatim}
\usepackage{chemfig,xstring}
\usepackage{multicol}
\usepackage{xparse}
\usepackage{fourier}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{MnSymbol}
\usepackage{gridleno}
\usepackage{hyperref}
\hypersetup{
  colorlinks=true,
  linkcolor=headtitle,
  citecolor=grlnblue,
  urlcolor=biru}
 
\usetikzlibrary{calc,decorations.markings}
 
\NewDocumentCommand\fgroup{O{1}O{0}mm}{%
  \pi_#1(#3,#4_#2)}
\NewDocumentCommand\erren{O{n}O{R}}{%
  \mathbb{#2}^#1}
\NewDocumentCommand\oper{O{f}O{g}}{%
  #1\ast#2}
\NewDocumentCommand\clase{O{f}}{%
  [#1]}
\NewDocumentCommand\opercl{O{f}O{g}}{%
  \clase[#1]\ast\clase[#2]}
\NewDocumentCommand\invclase{O{f}}{%
  \clase[\bar{#1}]}
 
\course{Christian Tellechea}
\courseid{}
\professor{Sulaeman, S.Pd.}
\term{v1.0h}
\topic{Paket $\TeX$ untuk Menggambar Molekul}
\date{28 November 2013}
 
\hbadness=99999 % Make TeX remain silent
 
\begin{document}
 
\makeheader

\begin{summary}
\begin{center}
  \setatomsep{3em}%
  \chemfig{*6((-H_2N)=N-*6(-\chembelow{N}{H}-=N?)=?-(=O)-HN-[,,2])}
 \end{center}
    
    \medskip
\end{summary}
 
\section{Jarak Antaratom}
\begin{center}
\setatomsep{2em}\chemfig{A-B}\par
\setatomsep{50pt}\chemfig{A-B} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\setatomsep{2em}\chemfig{A-B}\par
\setatomsep{50pt}\chemfig{A-B}
\end{verbatim}
\end{bclogo}
 
\section{Pemendekkan (\emph{trimming}) Ikatan}
 \begin{center}
\setbondoffset{0pt}\chemfig{A-B}\par
\setbondoffset{5pt}\chemfig{A-B} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\setbondoffset{0pt}\chemfig{A-B}\par
\setbondoffset{5pt}\chemfig{A-B}
\end{verbatim}
\end{bclogo}

\section{Grup yang Kosong}
 \begin{center}
\chemfig{A-B=-=C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B=-=C}
\end{verbatim}
\end{bclogo}

\section{Bentuk Ikatan}
 \begin{center}
\setbondstyle{line width=1pt,biru}
\chemfig{A-B=C>|D:F} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\setbondstyle{line width=1pt,biru}
\chemfig{A-B=C>|D:F}
\end{verbatim}
\end{bclogo}

\section{Bentuk Halus Pemendekan Ikatan}
 \begin{center}
\setbondoffset{4pt}
\chemfig{A-B-C}\par
\chemfig{A-#(,0pt)B-C}\par
\chemfig{A-B-#(0pt)C}\par
\chemfig{A-#(,0pt)B-#(0pt)C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\setbondoffset{4pt}
\chemfig{A-B-C}\par
\chemfig{A-#(,0pt)B-C}\par
\chemfig{A-B-#(0pt)C}\par
\chemfig{A-#(,0pt)B-#(0pt)C}
\end{verbatim}
\end{bclogo}

\section{Modus Matematis}
 \begin{center}
\chemfig{A_1B^2-C_3^4} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A_1B^2-C_3^4}
\end{verbatim}
\end{bclogo}

\section{Modifikasi Bentuk Ikatan \emph{Cram}}
 \begin{center}
\setcrambond{10pt}{0.4pt}{1pt}
\chemfig{A>B>:C>|D} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\setcrambond{10pt}{0.4pt}{1pt}
\chemfig{A>B>:C>|D}
\end{verbatim}
\end{bclogo}

\section{Penentuan Sudut}
 \begin{center}
\chemfig{A-B-[1]C-[3]-D-[7]E-[6]F} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B-[1]C-[3]-D-[7]E-[6]F}
\end{verbatim}
\end{bclogo}

\section{Penentuan Sudut dengan Grup Kosong}

\medskip
 \begin{center}
\chemfig{--[1]-[3]--[7]-[6]} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{--[1]-[3]--[7]-[6]}
\end{verbatim}
\end{bclogo}

\section{Penentuan Sudut Tertentu (Mutlak)}
 \begin{center}
\chemfig{A-[:30]B=[:-75]C-[:10]D-[:90]>|[:60]-[:-20]E-[:0]~[:-75]F} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[:30]B=[:-75]C-[:10]D-
[:90]>|[:60]-[:-20]E-[:0]~[:-75]F}
\end{verbatim}
\end{bclogo}

\section{Penentuan Sudut Relatif}
 \begin{center}
\chemfig{A-[:-5]-[::+20]-[::20]B-[::+20]-[::20]C-[::20]} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[:-5]-[::+20]-[::20]B-
[::+20]-[::20]C-[::20]}
\end{verbatim}
\end{bclogo}

\section{Sudut Relatif Diikuti Sudut Mutlak}

\medskip
 \begin{center}
\chemfig{A-[:-5]-[::20]-[::20]B-[7]-[::20]C-[::20]} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[:-5]-[::20]-[::20]B-[7]
-[::20]C-[::20]}
\end{verbatim}
\end{bclogo}

\section{Pengaruh Ukuran Atom}
 \begin{center}
\chemfig{I-I}\par
\chemfig{M-M} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{I-I}\par
\chemfig{M-M}
\end{verbatim}
\end{bclogo}

\section{Ikatan yang Terlalu Pendek}
 \begin{center}
\chemfig{A^{++}_{2}-B^{-}_3} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A^{++}_{2}-B^{-}_3}
\end{verbatim}
\end{bclogo}

\section{Modifikasi Panjang Ikatan}
 \begin{center}
\chemfig{A^{++}_{2}-[,2]B^{-}_3}\par
\chemfig{A-B-[,2]C=[,0.5]D}\par
\chemfig{-=[,1.5]-[,0.75]=[:-20,2]} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A^{++}_{2}-[,2]B^{-}_3}\par
\chemfig{A-B-[,2]C=[,0.5]D}\par
\chemfig{-=[,1.5]-[,0.75]=[:-20,2]}
\end{verbatim}
\end{bclogo}

\section{Modifikasi Ukuran Molekul}

\bigskip
 \begin{center}
\normalsize \chemfig{H-[:30]O-[:-30]H}\par
\setatomsep{2.5em}\chemfig{H-[:30]O-[:-30]H}\par
\small \chemfig{H-[:30]O-[:-30]H}\par
\footnotesize \chemfig{H-[:30]O-[:-30]H}\par
\scriptsize \chemfig{H-[:30]O-[:-30]H}\par
\tiny \chemfig{H-[:30]O-[:-30]H} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\normalsize \chemfig{H-[:30]O-
[:-30]H}\par
\setatomsep{2.5em}\chemfig{H-[:30]O
-[:-30]H}\par
\small \chemfig{H-[:30]O-[:-30]H}
\par
\footnotesize \chemfig{H-[:30]O-
[:-30]H}\par
\scriptsize \chemfig{H-[:30]O-
[:-30]H}\par
\tiny \chemfig{H-[:30]O-[:-30]H}
\end{verbatim}
\end{bclogo}

\section{Sambungan Atom Bawaan (\emph{Default})}
 \begin{center}
\chemfig{ABCD-[:100]EFG}\quad
\chemfig{ABCD-[:-110]EFG}\quad
\chemfig{ABCD-[5]EFG} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{ABCD-[:100]EFG}\quad
\chemfig{ABCD-[:-110]EFG}\quad
\chemfig{ABCD-[5]EFG}
\end{verbatim}
\end{bclogo}

\section{Sambungan Atom Tertentu}
 \begin{center}
\chemfig{ABCD-[:75,,2,3]EFG}\qquad
\chemfig{ABCD-[:75,,,2]EFG}\qquad
\chemfig{ABCD-[:75,,3,2]EFG} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{ABCD-[:75,,2,3]EFG}\qquad
\chemfig{ABCD-[:75,,,2]EFG}\qquad
\chemfig{ABCD-[:75,,3,2]EFG}
\end{verbatim}
\end{bclogo}

\section{Penggunaan Kode TikZ}
 \begin{center}
\chemfig{A-[,,,,red]B}\par
\chemfig{A-[,,,,dash pattern=on 2pt off 2pt]B}\par
\chemfig{A-[,,,,line width=2pt]B}\par
\chemfig{A-[,,,,red,line width=2pt]B} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[,,,,red]B}\par
\chemfig{A-[,,,,dash pattern=on 2pt 
off 2pt]B}\par
\chemfig{A-[,,,,line width=2pt]B}\par
\chemfig{A-[,,,,red,line width=2pt]B}
\end{verbatim}
\end{bclogo}

\section{Ikatan Bergelombang}
 \begin{center}
\chemfig{A-[,3,,,decorate,decoration=snake]B} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[,3,,,decorate,
decoration=snake]B}
\end{verbatim}
\end{bclogo}

\section{Menimpa Nilai Bawaan}
 \begin{center}
\chemfig{[:20,1.5]A-B-C-[:-80,0.7]D-E-F} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{[:20,1.5]A-B-C-[:-80,0.7]
D-E-F}
\end{verbatim}
\end{bclogo}

\section{Nilai Bawaan}
 \begin{center}
\chemfig{[1,1.5,2,2,biru,thick]ABC-DEF=GHI} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{[1,1.5,2,2,biru,thick]ABC
-DEF=GHI}
\end{verbatim}
\end{bclogo}

\section{Tanda Kurung}
 \begin{center}
\chemfig{A-B(-[1]W-X)-C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B(-[1]W-X)-C}
\end{verbatim}
\end{bclogo}

\section{Tanda Kurung Ganda}
 \begin{center}
\chemfig{A-B(-[1]W-X)(-[6]Y-[7]Z)-C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B(-[1]W-X)(-[6]Y-[7]Z)-C}
\end{verbatim}
\end{bclogo}

\section{Nilai Bawaan dalam Tanda Kurung}
 \begin{center}
\chemfig{A-B([:60]-D-E)([::-30,1.5]-X-Y)-C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B([:60]-D-E)([::-30,1.5]
-X-Y)-C}
\end{verbatim}
\end{bclogo}

\section{Sudut Ikatan Bawaan}
 \begin{center}
\chemfig{[:-45]A-B([:60]-D-E)([::-30,1.5]-X-Y)-C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{[:-45]A-B([:60]-D-E)([::-
30,1.5]-X-Y)-C}
\end{verbatim}
\end{bclogo}

\section{Tanda Kurung dan Percabangan}
 \begin{center}
\chemfig{A-B([1]-X([2]-Z)-Y)(-[7]D)-C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B([1]-X([2]-Z)-Y)(-[7]D)
-C}
\end{verbatim}
\end{bclogo}

\section{Struktur Asam Anhidrida}
 \begin{center}
\chemfig{R-C-[::-60]O-[::-60]C-[::-60]R} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{R-C-[::-60]O-[::-60]C-
[::-60]R}
\end{verbatim}
\end{bclogo}

\section{Struktur Asam Hidrida}

\medskip
 \begin{center}
\chemfig{R-C(=[::+60]O)-[::-60]O-[::-60]C(=[::+60]O)-[::-60]R} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{R-C(=[::+60]O)-[::-60]O-
[::-60]C(=[::+60]O)-[::-60]R}
\end{verbatim}
\end{bclogo}

\section{Pemutaran Molekul}

\medskip
 \begin{center}
\chemfig{[:75]R-C(=[::+60]O)-[::-60]O-[::-60]C(=[::+60]O)-[::-60]R} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{[:75]R-C(=[::+60]O)-
[::-60]O-[::-60]C(=[::+60]O)-
[::-60]R}
\end{verbatim}
\end{bclogo}

\section{Struktur dengan Tanda Kurung}

\medskip
 \begin{center}
\chemfig{A-B(-[1]W-X)(-[7]Y-Z)-C} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B(-[1]W-X)(-[7]Y-Z)-C}
\end{verbatim}
\end{bclogo}

\section{Jarak Ikatan}

\medskip
 \begin{center}
\chemfig{A-B(-[1]W-X?)(-[7]Y-Z)-C?} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B(-[1]W-X?)(-[7]Y-Z)-C?}
\end{verbatim}
\end{bclogo}

\section{Beberapa Jarak Ikatan}

\medskip
 \begin{center}
\chemfig{A-B(-[1]W-X?)(-[7]Y-Z?)-C?} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B(-[1]W-X?)(-[7]Y-Z?)-C?}
\end{verbatim}
\end{bclogo}

\section{Jarak Ikatan Ganda}

\medskip
 \begin{center}
\chemfig{A?[a]-B(-[1]W?[a]-X?[b])(-[7]Y-Z?[b])-C?[b]}\par\bigskip
\chemfig{A?[a]-B(-[1]W?[a,2,red]-X?[b])(-[7]Y-
Z?[b,1,{line width=2pt}])-C?[b,{>},biru]} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A?[a]-B(-[1]W?[a]-X?[b])(-
[7]Y-Z?[b])-C?[b]}\par\bigskip
\chemfig{A?[a]-B(-[1]W?[a,2,red]-X?
[b])(-[7]Y-Z?[b,1,{line width=2pt}])
-C?[b,{>},biru]}
\end{verbatim}
\end{bclogo}

\section{Bentuk Cincin Tidak Sempurna}

\medskip
 \begin{center}
\chemfig{A-[:-72]B-C-[:72]D-[:144]E} 
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[:-72]B-C-[:72]D-[:144]E}
\end{verbatim}
\end{bclogo}

\section{Jarak Ikatan Ganda Berbentuk Cincin}

\medskip
 \begin{center}
\chemfig{A?[a]-[:-72]B-C?[a]?[b]-[:72]D-[:144]E?[a]?[b]}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A?[a]-[:-72]B-C?[a]?[b]-
[:72]D-[:144]E?[a]?[b]}
\end{verbatim}
\end{bclogo}

\section{Cincin-5}

\medskip
 \begin{center}
\chemfig{A*5(-B=C-D-E=)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A*5(-B=C-D-E=)}
\end{verbatim}
\end{bclogo}

\section{Cincin-5 dengan Grup Kosong}

\medskip
 \begin{center}
\chemfig{*5(-=--=)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{*5(-=--=)}
\end{verbatim}
\end{bclogo}

\section{Cincin-5 Tidak Sempurna}

\medskip
 \begin{center}
\chemfig{*5(-B=C-D)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{*5(-B=C-D)}
\end{verbatim}
\end{bclogo}

\section{Cincin-5 Terpotong}

\medskip
 \begin{center}
\chemfig{A*5(-B=C-D-E=F-G=H-I)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A*5(-B=C-D-E=F-G=H-I)}
\end{verbatim}
\end{bclogo}

\section{Cincin dan Busur}

\medskip
 \begin{center}
\chemfig{**6(------)}\quad
\chemfig{**[30,330]5(-----)}\quad
\chemfig{**[0,270,dash pattern=on 2pt off 2pt]4(----)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{**6(------)}\quad
\chemfig{**[30,330]5(-----)}\quad
\chemfig{**[0,270,dash pattern=on 
2pt off 2pt]4(----)}
\end{verbatim}
\end{bclogo}

\section{Posisi Sudut pada Cincin}

\medskip
 \begin{center}
\chemfig{A*4(-B-C-D-)}\qquad\chemfig{A*6(------)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A*4(-B-C-D-)}\qquad
\chemfig{A*6(------)}
\end{verbatim}
\end{bclogo}

\section{Pemutaran Cincin}

\medskip
 \begin{center}
\chemfig{A*4(-B-C-D-)}\qquad\chemfig{A*6(------)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{[:30]A*6(------)}\qquad
\chemfig{[:-30]A*6(------)}\qquad
\chemfig{[:60]A*6(------)}
\end{verbatim}
\end{bclogo}

\section{Ikatan Berujung pada Cincin}

\medskip
 \begin{center}
\chemfig{A-B*5(-C-D-E-F-)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-B*5(-C-D-E-F-)}
\end{verbatim}
\end{bclogo}

\section{Beberapa Ikatan Berujung pada Cincin}

\medskip
 \begin{center}
\chemfig{A-[:25]B*4(----)}\vskip5pt
\chemfig{A=[:-30]*6(=-=-=-)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{A-[:25]B*4(----)}\vskip5pt
\chemfig{A=[:-30]*6(=-=-=-)}
\end{verbatim}
\end{bclogo}

\section{Percabangan pada Cincin}

\medskip
 \begin{center}
\chemfig{X*6(-=-(-A-B=C)=-=-)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{X*6(-=-(-A-B=C)=-=-)}
\end{verbatim}
\end{bclogo}

\section{Cincin dan Percabangan}

\medskip
 \begin{center}
\chemfig{X*6(-=-(-A-B=C)=-=-)}
\end{center}

\renewcommand\bcStyleTitre[1]{\large\textcolor{headtitle}{#1}}
\begin{bclogo}[couleur=bgblue, arrondi =0 , logo=\bclampe, barre=none,noborder=true]{}
\begin{verbatim}
\chemfig{*5((-A=B-C)-(-D-E)-(=)-
(-F)-(-G=)-)}
\end{verbatim}
\end{bclogo}

\begin{thebibliography}{9}
  \bibitem{tellechea} Tellechea, Christian  \href{http://mirrors.ctan.org/macros/generic/chemfig/chemfig_doc_en.pdf}{\emph{Chemfig v1.0h, A \TeX\ package for drawing molecules}}. the \LaTeX\ Project Public License, 2013.
\end{thebibliography}
 
\end{document}



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