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    <DateGenerated>2025-02-27</DateGenerated>
    <Source Source="toppar/non_charmm/toppar_water_ions_spc_e.str" md5hash="5a43bf944d3d6bd537b50538ceb83560" sourcePackage="charmm36" sourcePackageVersion="toppar_c36_jul24.tgz">toppar/non_charmm/toppar_water_ions_spc_e.str</Source>
    <Source Source="toppar/stream/misc/toppar_ions_won.str" md5hash="f523f7727e7dfa25468cc75f9b880c5b" sourcePackage="charmm36" sourcePackageVersion="toppar_c36_jul24.tgz">toppar/stream/misc/toppar_ions_won.str</Source>
    <Reference Reference="H.J.C. Berendsen, J. R. Grigera, and T. P. Straatsma. The Missing Term in Effective Pair Potentials. J. Phys. Chem 91:6269-6271, 1987." forcefield="spc-e">H.J.C. Berendsen, J. R. Grigera, and T. P. Straatsma. The Missing Term in Effective Pair Potentials. J. Phys. Chem 91:6269-6271, 1987.</Reference>
    <Reference Reference="Beglov, D. and Roux, B., Finite Representation of an Infinite Bulk System: Solvent Boundary Potential for Computer Simulations, Journal of Chemical Physics, 1994, 100: 9050-9063" forcefield="ions">Beglov, D. and Roux, B., Finite Representation of an Infinite Bulk System: Solvent Boundary Potential for Computer Simulations, Journal of Chemical Physics, 1994, 100: 9050-9063</Reference>
    <Reference Reference="Stote, R.H. and Karplus, M. Zinc Binding in Proteins and Solution: A Simple but Accurate Nonbonded Representation, PROTEINS: Structure, Function, and Genetics 23:12-31 (1995)" forcefield="ions">Stote, R.H. and Karplus, M. Zinc Binding in Proteins and Solution: A Simple but Accurate Nonbonded Representation, PROTEINS: Structure, Function, and Genetics 23:12-31 (1995)</Reference>
    <Reference Reference="Won, Y., &quot;Force Field for Monovalent, Divalent, and Trivalent Cations Developed under the Solvent Boundary Potential,&quot; Journal of Physical Chemistry A., 116: 11763-11767, 2012." forcefield="ions">Won, Y., "Force Field for Monovalent, Divalent, and Trivalent Cations Developed under the Solvent Boundary Potential," Journal of Physical Chemistry A., 116: 11763-11767, 2012.</Reference>
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    <Atom class="CR3P" epsilon="0.0" sigma="1.0" />
    <Atom class="MN3P" epsilon="0.0" sigma="1.0" />
    <Atom class="FE3P" epsilon="0.0" sigma="1.0" />
    <Atom class="CO3P" epsilon="0.0" sigma="1.0" />
    <Atom class="GA3P" epsilon="0.0" sigma="1.0" />
    <Atom class="RH3P" epsilon="0.0" sigma="1.0" />
    <Atom class="IN3P" epsilon="0.0" sigma="1.0" />
    <Atom class="AU3P" epsilon="0.0" sigma="1.0" />
    <Atom class="TL3P" epsilon="0.0" sigma="1.0" />
    <Atom class="BI3P" epsilon="0.0" sigma="1.0" />
  </NonbondedForce>
  <LennardJonesForce lj14scale="1.0">
    <Atom class="HT" epsilon="4.184e-06" sigma="1.7817974362806786e-05" />
    <Atom class="HX" epsilon="0.192464" sigma="0.04000135244450124" />
    <Atom class="OT" epsilon="0.64973336" sigma="0.3165541325296254" />
    <Atom class="OX" epsilon="0.50208" sigma="0.30290556416771536" />
    <Atom class="LIT" epsilon="0.00974872" sigma="0.23118821735741807" />
    <Atom class="SOD" epsilon="0.1962296" sigma="0.2513670733232967" />
    <Atom class="MG" epsilon="0.06276" sigma="0.2111429961992604" />
    <Atom class="POT" epsilon="0.364008" sigma="0.3142645228240047" />
    <Atom class="CAL" epsilon="0.50208" sigma="0.24357170953956878" />
    <Atom class="RUB" epsilon="0.6276" sigma="0.3385415128933289" />
    <Atom class="CES" epsilon="0.79496" sigma="0.37417746161894255" />
    <Atom class="BAR" epsilon="0.6276" sigma="0.33675971545704825" />
    <Atom class="ZN" epsilon="1.046" sigma="0.194215920554594" />
    <Atom class="CAD" epsilon="0.50208" sigma="0.2417899121032881" />
    <Atom class="CLA" epsilon="0.6276" sigma="0.4044680180357141" />
    <Atom class="CU1P" epsilon="0.7748768" sigma="0.1535909390073945" />
    <Atom class="AG1P" epsilon="1.2008079999999999" sigma="0.2163636626875628" />
    <Atom class="AU1P" epsilon="1.4907592" sigma="0.11250269012676205" />
    <Atom class="TI1P" epsilon="1.7016328" sigma="0.34401163102271065" />
    <Atom class="BE2P" epsilon="0.4250944" sigma="0.007127189745122714" />
    <Atom class="SR2P" epsilon="0.9572992" sigma="0.3306837861993312" />
    <Atom class="RA2P" epsilon="1.2631496" sigma="0.37237784620829906" />
    <Atom class="V2P" epsilon="0.6732056" sigma="0.1966569830422985" />
    <Atom class="CR2P" epsilon="0.6974728" sigma="0.18872798445084948" />
    <Atom class="MN2P" epsilon="0.7050040000000001" sigma="0.2144749574051053" />
    <Atom class="FE2P" epsilon="0.667348" sigma="0.1924519410926761" />
    <Atom class="CO2P" epsilon="0.6439176000000001" sigma="0.16527953018939576" />
    <Atom class="NI2P" epsilon="0.5999856" sigma="0.13903365395298137" />
    <Atom class="CU2P" epsilon="0.629692" sigma="0.129198132104712" />
    <Atom class="PD2P" epsilon="0.7288528" sigma="0.16519044031758173" />
    <Atom class="AG2P" epsilon="0.7752952" sigma="0.1869105510658432" />
    <Atom class="SN2P" epsilon="0.7861736" sigma="0.29542201493533654" />
    <Atom class="PT2P" epsilon="0.6824104" sigma="0.1420270736459329" />
    <Atom class="HG2P" epsilon="0.8593936" sigma="0.2105728210196506" />
    <Atom class="PB2P" epsilon="1.0016496000000001" sigma="0.3132399892981433" />
    <Atom class="SM2P" epsilon="1.0242432" sigma="0.330790694045508" />
    <Atom class="EU2P" epsilon="0.9907712000000001" sigma="0.3279220001730961" />
    <Atom class="YB2P" epsilon="0.8593936" sigma="0.28669120749756116" />
    <Atom class="AL3P" epsilon="0.44601440000000003" sigma="0.039377723341803" />
    <Atom class="SC3P" epsilon="0.5899439999999999" sigma="0.19544536078562763" />
    <Atom class="Y3P" epsilon="0.6928704" sigma="0.25183924964391113" />
    <Atom class="LA3P" epsilon="0.7932864" sigma="0.3158592315294759" />
    <Atom class="CE3P" epsilon="0.7702744000000001" sigma="0.30495463121943817" />
    <Atom class="PR3P" epsilon="0.7627432" sigma="0.2956180126533274" />
    <Atom class="ND3P" epsilon="0.7497728" sigma="0.2886333667031071" />
    <Atom class="PM3P" epsilon="0.74266" sigma="0.29527947114043407" />
    <Atom class="SM3P" epsilon="0.7351288" sigma="0.2791542043420939" />
    <Atom class="EU3P" epsilon="0.728016" sigma="0.2713677495455473" />
    <Atom class="GD3P" epsilon="0.7209032000000001" sigma="0.2681605141602421" />
    <Atom class="TB3P" epsilon="0.7083512000000001" sigma="0.2628151218514001" />
    <Atom class="DY3P" epsilon="0.6999832" sigma="0.2573628216963812" />
    <Atom class="HO3P" epsilon="0.6928704" sigma="0.247794569463554" />
    <Atom class="ER3P" epsilon="0.6845024" sigma="0.24362516346265717" />
    <Atom class="TM3P" epsilon="0.6778080000000001" sigma="0.24029320225681233" />
    <Atom class="YB3P" epsilon="0.6711136" sigma="0.23077840394707347" />
    <Atom class="LU3P" epsilon="0.6644192" sigma="0.2407564695902453" />
    <Atom class="U3P" epsilon="0.7932864" sigma="0.3031193798600691" />
    <Atom class="PU3P" epsilon="0.7702744000000001" sigma="0.29750671793578487" />
    <Atom class="TI3P" epsilon="0.537644" sigma="0.14769318949330543" />
    <Atom class="V3P" epsilon="0.5171424" sigma="0.10943799853635927" />
    <Atom class="CR3P" epsilon="0.5045904" sigma="0.15022334185282402" />
    <Atom class="MN3P" epsilon="0.5238368" sigma="0.06849229345062928" />
    <Atom class="FE3P" epsilon="0.5238368" sigma="0.10090318881657484" />
    <Atom class="CO3P" epsilon="0.4983144" sigma="0.04598819183040431" />
    <Atom class="GA3P" epsilon="0.5045904" sigma="0.04042898382920859" />
    <Atom class="RH3P" epsilon="0.537644" sigma="0.0821943157356277" />
    <Atom class="IN3P" epsilon="0.6163031999999999" sigma="0.15435711190499518" />
    <Atom class="AU3P" epsilon="0.5564720000000001" sigma="0.065106878321696" />
    <Atom class="TL3P" epsilon="0.6815736" sigma="0.15489165113587938" />
    <Atom class="BI3P" epsilon="0.7740400000000001" sigma="0.24378552523192246" />
    <NBFixPair class1="CLA" class2="SOD" epsilon="0.35093300000000005" sigma="0.3323943117381606" />
    <NBFixPair class1="CLA" class2="POT" epsilon="0.477963424" sigma="0.3635757668730725" />
    <NBFixPair class1="OC" class2="SOD" epsilon="0.31388368000000005" sigma="0.28419669108676826" />
    <NBFixPair class1="OCL" class2="SOD" epsilon="0.31388368000000005" sigma="0.28419669108676826" />
    <NBFixPair class1="OC2D2" class2="SOD" epsilon="0.31388368000000005" sigma="0.28419669108676826" />
    <NBFixPair class1="OG2D2" class2="SOD" epsilon="0.31388368000000005" sigma="0.28419669108676826" />
  </LennardJonesForce>
  <InitializationScript>
EXPECTED_VERSION = "charmm36_2024"
if hasattr(self, "_charmm_ff_version"):
    if self._charmm_ff_version != EXPECTED_VERSION:
        raise RuntimeError(f"CHARMM force field versions ({self._charmm_ff_version} and {EXPECTED_VERSION}) incompatible")
else:
    self._charmm_ff_version = EXPECTED_VERSION
  </InitializationScript>
</ForceField>