remark goes here MASS BOND ANGLE DIHE IMPROPER c3-h4-c -o 10.5 180.0 2.0 General improper torsional angle (2 general atom types) c3-n -c -o 10.5 180.0 2.0 General improper torsional angle (2 general atom types) c3-o -c -ss 10.5 180.0 2.0 General improper torsional angle (2 general atom types) NONBON