//h-bonds copied from try2-opt.scwrl constraint V231.N T223.O 2.3 2.7 3.2 constraint V231.O T223.N 2.3 2.7 3.2 constraint F142.N H137.O 2.3 2.7 3.2 constraint F142.O H137.N 2.3 2.7 3.2 constraint R182.O A107.N 2.3 2.7 3.2 constraint A184.N A107.O 2.3 2.7 3.2 constraint A184.O L109.N 2.3 2.7 3.2 constraint L186.N L109.O 2.3 2.7 3.2 constraint L186.O V111.N 2.3 2.7 3.2 constraint F185.O G36.N 2.3 2.7 3.2 constraint T187.N G36.O 2.3 2.7 3.2 constraint D65.N F110.O 2.3 2.7 3.2