chAf_arrow.chem:
.br
.EQ
delim $$
.EN
.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 length .1 ; BP
    bond up length .5
    bond right
    bond down length .5 from BP
    bond right
    bond right from BP ; C
    double bond up ; O
    bond right from C
    benzene pointing right
    bond right ; C
    double bond up from C ; O
    bond right from C ; O
    bond right ; CH2
# this is the statement to make the arrow
    line <- from CH2.s down
    move down .1 ; "0.085"
    CH2CH2CH2 right of CH2
    bond right ; O
    bond right length .1 ; BP
    bond up length .5 from BP
    bond left
    bond right length .1 from BP
    bond down length .5 from BP ; BP
    bond left
    "$n$" with .w at BP.se

# Local Variables:
# mode: Nroff
# End:
.cend
.EQ
delim off
.EN