ch4z2_text.chem:
.br
.cstart

# This originates from Computing Science Technical Report No. 122
#   CHEM - A Program for Typesetting Chemical Diagrams: User Manual
#   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
#   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.

    bond 120 dotted
    bond 120 length .3 ; BP
    back bond -120 length .25 from BP ; H
    front bond 120 length .25 from BP ; CH3
    bond 60 length .5 from BP ; BP
    bond -60 length .25 from BP ; H
# note the pic move command to position the text
    move left .35 ; "(ANTI)"
    front bond 60 length .25 from BP ; H
# another positioning of text
    move right .35 ; "(SYN)"
    bond 120 length .4 from BP ; BP
    back bond -120 length .25 from BP ; H
    front bond 120 length .25 from BP ; CH3
    bond 60 length .5 from BP
    bond 60 dotted

# Local Variables:
# mode: Nroff
# End:
.cend