POPC Topology from Lipidbook

; source: https://lipidbook.org/package/show/id/152.html

[moleculetype]
; molname 	nrexcl
  POPC 1

[ atoms ]
;  nr type resnr resid atom cgnr  charge    mass
    1   Q0     1   POPC  NC3    1  1.0000 72.0000
    2   Qa     1   POPC  PO4    2 -1.0000 72.0000
    3   Na     1   POPC  GL1    3  0.0000 72.0000
    4   Na     1   POPC  GL2    4  0.0000 72.0000
    5   C1     1   POPC  C1A    5  0.0000 72.0000
    6   C1     1   POPC  C2A    6  0.0000 72.0000
    7   C1     1   POPC  C3A    7  0.0000 72.0000
    8   C1     1   POPC  C4A    8  0.0000 72.0000
    9   C1     1   POPC  C1B    9  0.0000 72.0000
   10   C1     1   POPC  C2B   10  0.0000 72.0000
   11   C3     1   POPC  D3B   11  0.0000 72.0000
   12   C1     1   POPC  C4B   12  0.0000 72.0000
   13   C1     1   POPC  C5B   13  0.0000 72.0000

[ bonds ]
;nums func ref fc
  1   2   1 0.4730 1.2500e+03
  2   3   1 0.4800 1.2500e+03
  2   4   1 0.5130 1.2500e+03
  3   4   1 0.4020 1.2500e+03
  4   5   1 0.4700 1.2500e+03
  5   6   1 0.4700 1.2500e+03
  6   7   1 0.4700 1.2500e+03
  7   8   1 0.4700 1.2500e+03
  3   9   1 0.4700 1.2500e+03
  9  10   1 0.4700 1.2500e+03
 10  11   1 0.4700 1.2500e+03
 11  12   1 0.4700 1.2500e+03
 12  13   1 0.4700 1.2500e+03


[ angles ]
;atoms func ref fc
  2   3   9   2 180.0000 2.5000e+01
   3   4   5   2 120	   45
   4   3   9   2 120	   45
  4   5   6   2 180.0000 2.5000e+01
  5   6   7   2 180.0000 2.5000e+01
  6   7   8   2 180.0000 2.5000e+01
  3   9  10   2 180.0000 2.5000e+01
  9  10  11   2 180.0000 2.5000e+01
; 10  11  12   2 120.0000 4.5000e+01
 10  11  12   2 145.0000 4.5000e+01
 11  12  13   2 180.0000 2.5000e+01