#include atoms

#DEFVAR  
    O           = O ;           {oxygen atomic ground state (3P)}
    O1D         = O ;           {oxygen atomic first singlet state}
    O3		= 3O ;          {ozone}  
    NO		= N + O ;       {nitric oxide}  
    NO2		= N + 2O ;      {nitrogen dioxide} 
    NO3		= N + 3O ;      {nitrogen trioxide} 
    N2O5	= 2N + 5O ;     {dinitrogen pentoxide}           
    HNO3	= H + N + 3O ;  { nitric acid }
    HNO4	= H + N + 4O ;  {HO2NO2 pernitric acid}
    H           = H ;           {hydrogen atomic ground state (2S)}
    OH		= O + H ;       {hydroxyl radical}  
    HO2		= H + 2O ;      {perhydroxyl radical}                     
    H2O2	= 2H + 2O ;     {hydrogen peroxide} 
    CH3         = C + 3H ;      {methyl radical}
    CH3O        = C + 3H + O ;  {methoxy radical}
    CH3O2       = C + 3H + 2O ; {methylperoxy radical}
    CH3OOH      = C + 4H + 2O ; {CH4O2      methylperoxy alcohol}
    HCO         = H + C + O ;   {CHO  formyl radical}
    CH2O        = C + 2H + O ;  {formalydehyde}
    Cl          = Cl ;          {chlorine atomic ground state (2P3/2)}
    Cl2         = 2Cl ;         {molecular chlorine}
    ClO         = Cl + O ;      {chlorine monoxide radical}
    ClOO        = Cl + 2O ;     {asymmetrical chlorine dioxide radical}
    OClO        = Cl + 2O ;     {symmetrical chlorine dioxide}
    Cl2O2       = 2Cl + 2O ;    {chlorine monoxide dimer}
    HCl         = H + Cl ;      {hydrogen chloride}
    HOCl        = H + O + Cl ;  {hydrochlorous acid}
    ClONO2      = Cl + 3O + N ; {ClNO3, chlorine nitrate}
    Br          = Br ;          {bromine atomic ground state (2P3/2)}
    BrCl        = Br + Cl ;     {bromine chloride}
    BrO         = Br + O ;      {bromine monoxide radical}
    HBr         = H + Br ;      {hydrogen bromide}
    HOBr        = H + O + Br ;  {hydrobromous acid}
    BrONO2      = Br + N + 3O ; {BrNO3, bromine nitrate}


#DEFFIX
    H2O		= H + 2O ;      {water}
    H2		= 2H ;          {molecular hydrogen}
    O2          = 2O ;          {molecular oxygen}              
    N2          = 2N ;          {molecular nitrogen}              
    CH4		= C + 4H ;      {methane} 
    CO		= C + O ;       {carbon monoxide}