ch4g_BP.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>.

# this is the isopropyl group
    bond 120 ; BP       # BP is right end of this bond
    bond -120 from BP
    bond right from BP ; C
    front bond up ; CH3
    back bond down from C ; D
    bond right from C ; BP
# redefine BP to mean the center carbon of this t-butyl group
    bond up from BP
    bond right from BP
    bond down from BP

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