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All results from a given calculation for C3H7NO (dimethylformamide)

using model chemistry: MP2/CEP-121G*

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-121G*
 hartrees
Energy at 0K-46.664666
Energy at 298.15K-46.672897
HF Energy-45.922743
Nuclear repulsion energy101.117626
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-121G*
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' 3215 3063 0.98      
2 A' 3182 3031 20.78      
3 A' 3058 2914 56.60      
4 A' 3051 2907 60.86      
5 A' 3027 2884 87.87      
6 A' 1734 1652 473.16      
7 A' 1568 1494 13.68      
8 A' 1539 1467 12.98      
9 A' 1497 1426 14.58      
10 A' 1466 1397 21.53      
11 A' 1453 1384 62.31      
12 A' 1429 1362 32.68      
13 A' 1303 1242 36.13      
14 A' 1116 1063 116.29      
15 A' 1100 1048 3.70      
16 A' 879 838 2.13      
17 A' 653 622 7.26      
18 A' 390 371 1.37      
19 A' 317 303 10.87      
20 A" 3138 2990 14.07      
21 A" 3130 2982 61.18      
22 A" 1534 1461 16.95      
23 A" 1511 1440 3.27      
24 A" 1186 1130 5.31      
25 A" 1138 1085 0.10      
26 A" 999 952 0.29      
27 A" 327 312 18.43      
28 A" 224 214 3.14      
29 A" 145 138 0.53      
30 A" 74 70 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 22690.8 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 21619.8 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-121G*
ABC
0.29515 0.13714 0.09710

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.711 -0.822 0.000
O2 0.217 -1.958 0.000
N3 0.000 0.351 0.000
C4 -1.461 0.326 0.000
C5 0.658 1.653 0.000
H6 1.803 -0.651 0.000
H7 -1.779 -0.717 0.000
H8 -1.848 0.833 0.893
H9 -1.848 0.833 -0.893
H10 1.742 1.512 0.000
H11 0.376 2.227 -0.891
H12 0.376 2.227 0.891

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.23911.37172.45662.47521.10542.49243.17493.17492.55173.19373.1937
O21.23912.31952.83403.63772.05542.35053.58423.58423.79084.28144.2814
N31.37172.31951.46131.45822.06302.07512.10762.10762.09332.11002.1100
C42.45662.83401.46132.49993.40731.09011.09681.09683.41552.78922.7892
C52.47523.63771.45822.49992.57303.39892.78312.78311.09311.09711.0971
H61.10542.05542.06303.40732.57303.58294.04054.04052.16453.33373.3337
H72.49242.35052.07511.09013.39893.58291.78931.78934.16723.75493.7549
H83.17493.58422.10761.09682.78314.04051.78931.78543.76063.17302.6239
H93.17493.58422.10761.09682.78314.04051.78931.78543.76062.62393.1730
H102.55173.79082.09333.41551.09312.16454.16723.76063.76061.78081.7808
H113.19374.28142.11002.78921.09713.33373.75493.17302.62391.78081.7830
H123.19374.28142.11002.78921.09713.33373.75492.62393.17301.78081.7830

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 120.224 C1 N3 C5 121.975
O2 C1 N3 125.275 O2 C1 H6 122.390
N3 C1 H6 112.335 N3 C4 H7 107.965
N3 C4 H8 110.140 N3 C4 H9 110.140
N3 C5 H10 109.434 N3 C5 H11 110.533
N3 C5 H12 110.533 C4 N3 C5 117.802
H7 C4 H8 109.814 H7 C4 H9 109.814
H8 C4 H9 108.958 H10 C5 H11 108.798
H10 C5 H12 108.798 H11 C5 H12 108.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability