5 # Example file for `chem':
7 # This originates from Computing Science Technical Report No. 122
8 # CHEM - A Program for Typesetting Chemical Diagrams: User Manual
9 # by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
10 # <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
12 # Copyright (C) 2006-2014 Free Software Foundation, Inc.
14 # This file is part of `chem', which is part of `groff'.
16 # `groff' is free software; you can redistribute it and/or modify it
17 # under the terms of the GNU General Public License (GPL) version 2 as
18 # published by the Free Software Foundation.
20 # `groff' is distributed in the hope that it will be useful, but
21 # WITHOUT ANY WARRANTY; without even the implied warranty of
22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 # General Public License for more details.
25 # You should have received a copy of the GNU General Public License
26 # along with this program. If not, see <http://www.gnu.org/licenses/>.
28 # The GPL2 license text is available in the internet at
29 # <http://www.gnu.org/licenses/gpl-2.0.html>.
31 ########################################################################
35 R1: ring5 pointing up put N at 4 double 1,2 4,5 with .V4 at N
36 bond up from R1.V1 ; CH3
37 bond right from R1.V2 ; CH2CH3
39 R2: ring5 pointing down put N at 3 double 1,2 4,5 with .V3 at N
40 bond right from R2.V5 ; CH3
42 R3: ring5 pointing down put N at 4 double 3,4 with .V4 at N
44 R4: ring5 pointing up put N at 3 double 1,5 with .V3 at N
45 bond left from R4.V5 ; H3C
46 bond up from R4.V1 ; CH
47 double bond right length .1 from CH ; CH2
48 double bond 150 length .3 from R1.V3
50 R5: ring5 pointing 72 with .V5 at R2.V2
51 double bond 135 from R5.V2 ; O
52 bond down from R5.V3 ; C
53 double bond left length .1 from C ; O
56 double bond -25 from R5.V4
57 bond down from R3.V1 ; CH2
61 bond -135 from C ; C20H39O
62 bond left from R3.V2 ; H3C
63 double bond -150 length .3 from R4.V4
66 ########################################################################