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All results from a given calculation for HCONHCH3 (N-methylformamide)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.067896
HF Energy-0.067896
Nuclear repulsion energy84.621177
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PM3
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3385 3297 15.09      
2 A' 3130 3049 0.07      
3 A' 3052 2973 0.63      
4 A' 2911 2836 0.93      
5 A' 1891 1842 580.73      
6 A' 1464 1426 97.79      
7 A' 1384 1348 3.15      
8 A' 1349 1314 24.57      
9 A' 1254 1222 174.08      
10 A' 1125 1096 1.97      
11 A' 1105 1076 3.03      
12 A' 961 936 28.34      
13 A' 530 517 6.64      
14 A' 339 330 12.95      
15 A" 3040 2961 0.25      
16 A" 1375 1339 0.20      
17 A" 978 953 2.34      
18 A" 927 902 0.08      
19 A" 306 298 114.11      
20 A" 92 89 0.37      
21 A" 272i 265i 89.19      

Unscaled Zero Point Vibrational Energy (zpe) 15162.8 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 14768.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
1.36153 0.14735 0.13639

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.277 -0.805 0.000
O2 1.450 -1.136 0.000
N3 0.000 0.568 0.000
C4 -1.371 1.088 0.000
H5 -0.570 -1.510 0.000
H6 0.741 1.236 0.000
H7 -2.106 0.273 0.000
H8 -1.548 1.709 0.889
H9 -1.548 1.709 -0.889

Atom - Atom Distances (Å)
  C1 O2 N3 C4 H5 H6 H7 H8 H9
C11.21891.39992.50941.10192.09222.61523.23133.2313
O21.21892.23733.59222.05382.47573.82494.22814.2281
N31.39992.23731.46632.15410.99732.12692.11932.1193
C42.50943.59221.46632.71842.11671.09821.09911.0991
H51.10192.05382.15412.71843.04202.35303.47983.4798
H62.09222.47570.99732.11673.04203.00542.50112.5011
H72.61523.82492.12691.09822.35303.00541.77931.7793
H83.23134.22812.11931.09913.47982.50111.77931.7787
H93.23134.22812.11931.09913.47982.50111.77931.7787

picture of N-methylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 122.194 C1 N3 H6 120.635
O2 C1 N3 117.204 O2 C1 H5 124.417
N3 C1 H5 118.378 N3 C4 H7 111.255
N3 C4 H8 110.585 N3 C4 H9 110.585
C4 N3 H6 117.171 H7 C4 H8 108.142
H7 C4 H9 108.142 H8 C4 H9 108.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability