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All results from a given calculation for C3H7NO (dimethylformamide)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-46.604761
Energy at 298.15K-46.612954
HF Energy-45.910668
Nuclear repulsion energy100.642534
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 MP2/CEP-31G*
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' 3226 3063 2.30      
2 A' 3199 3037 24.79      
3 A' 3078 2922 54.16      
4 A' 3071 2915 74.55      
5 A' 3048 2894 97.87      
6 A' 1768 1678 494.88      
7 A' 1556 1478 21.36      
8 A' 1524 1447 13.72      
9 A' 1490 1415 13.30      
10 A' 1462 1388 30.62      
11 A' 1451 1378 51.52      
12 A' 1427 1355 20.74      
13 A' 1306 1240 35.47      
14 A' 1113 1057 112.57      
15 A' 1095 1040 4.26      
16 A' 881 836 1.96      
17 A' 652 619 6.65      
18 A' 387 367 1.61      
19 A' 315 299 11.19      
20 A" 3160 3000 21.26      
21 A" 3150 2991 58.73      
22 A" 1521 1444 19.47      
23 A" 1500 1424 3.65      
24 A" 1182 1123 3.32      
25 A" 1140 1082 0.16      
26 A" 1007 956 0.64      
27 A" 326 309 22.78      
28 A" 226 214 3.53      
29 A" 147 140 0.57      
30 A" 66 63 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 22737.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 21586.8 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 MP2/CEP-31G*
ABC
0.29265 0.13585 0.09624

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.705 -0.831 0.000
O2 0.209 -1.971 0.000
N3 0.000 0.351 0.000
C4 -1.465 0.346 0.000
C5 0.672 1.650 0.000
H6 1.805 -0.660 0.000
H7 -1.804 -0.700 0.000
H8 -1.847 0.863 0.900
H9 -1.847 0.863 -0.900
H10 1.764 1.499 0.000
H11 0.392 2.231 -0.899
H12 0.392 2.231 0.899

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.24361.37662.46902.48071.11292.51293.19243.19242.55873.20613.2061
O21.24362.33202.85873.65032.06562.38123.61513.61513.80224.30094.3009
N31.37662.33201.46541.46192.06892.08812.11722.11722.10402.11972.1197
C42.46902.85871.46542.50383.42151.09911.10601.10603.42872.79472.7947
C52.48073.65031.46192.50382.57223.41352.78812.78811.10201.10631.1063
H61.11292.06562.06893.42152.57223.60944.05754.05752.15883.34063.3406
H72.51292.38122.08811.09913.41353.60941.80401.80404.19083.77083.7708
H83.19243.61512.11721.10602.78814.05751.80401.80043.77483.18092.6234
H93.19243.61512.11721.10602.78814.05751.80401.80043.77482.62343.1809
H102.55873.80222.10403.42871.10202.15884.19083.77483.77481.79591.7959
H113.20614.30092.11972.79471.10633.34063.77083.18092.62341.79591.7973
H123.20614.30092.11972.79471.10633.34063.77082.62343.18091.79591.7973

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 120.598 C1 N3 C5 121.812
O2 C1 N3 125.670 O2 C1 H6 122.356
N3 C1 H6 111.974 N3 C4 H7 108.174
N3 C4 H8 110.057 N3 C4 H9 110.057
N3 C5 H10 109.499 N3 C5 H11 110.494
N3 C5 H12 110.494 C4 N3 C5 117.590
H7 C4 H8 109.792 H7 C4 H9 109.792
H8 C4 H9 108.960 H10 C5 H11 108.835
H10 C5 H12 108.835 H11 C5 H12 108.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability