return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H7NO (dimethylformamide)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-247.783749
Energy at 298.15K-247.792059
HF Energy-246.986701
Nuclear repulsion energy180.606325
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 MP4/6-31G*
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' 3191 3046        
2 A' 3151 3008        
3 A' 3047 2909        
4 A' 3039 2901        
5 A' 2974 2839        
6 A' 1761 1682        
7 A' 1576 1504        
8 A' 1548 1478        
9 A' 1499 1431        
10 A' 1465 1399        
11 A' 1457 1391        
12 A' 1440 1375        
13 A' 1311 1251        
14 A' 1115 1065        
15 A' 1100 1050        
16 A' 889 849        
17 A' 658 628        
18 A' 395 377        
19 A' 327 312        
20 A" 3110 2970        
21 A" 3102 2962        
22 A" 1542 1472        
23 A" 1519 1450        
24 A" 1195 1141        
25 A" 1147 1095        
26 A" 1004 959        
27 A" 331 316        
28 A" 228 217        
29 A" 169 161        
30 A" 88 84        

Unscaled Zero Point Vibrational Energy (zpe) 22686.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 21660.7 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 MP4/6-31G*
ABC
0.29688 0.13787 0.09766

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.705 -0.821 0.000
O2 0.214 -1.953 0.000
N3 0.000 0.352 0.000
C4 -1.455 0.326 0.000
C5 0.658 1.647 0.000
H6 1.802 -0.647 0.000
H7 -1.769 -0.721 0.000
H8 -1.848 0.831 0.894
H9 -1.848 0.831 -0.894
H10 1.744 1.503 0.000
H11 0.379 2.226 -0.893
H12 0.379 2.226 0.893

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.23381.36862.44542.46781.11022.47583.16973.16972.54563.19133.1913
O21.23382.31462.82413.62642.05552.33383.57763.57763.77944.27584.2758
N31.36862.31461.45491.45192.06052.06872.10802.10802.08982.10982.1098
C42.44542.82411.45492.49113.39881.09301.09951.09953.40882.78742.7874
C52.46783.62641.45192.49112.56353.39002.78262.78261.09631.09991.0999
H61.11022.05552.06053.39882.56353.57114.03814.03812.15123.32803.3280
H72.47582.33382.06871.09303.39003.57111.79281.79284.15783.75423.7542
H83.16973.57762.10801.09952.78264.03811.79281.78773.76263.17782.6280
H93.16973.57762.10801.09952.78264.03811.79281.78773.76262.62803.1778
H102.54563.77942.08983.40881.09632.15124.15783.76263.76261.78411.7841
H113.19134.27582.10982.78741.09993.32803.75423.17782.62801.78411.7853
H123.19134.27582.10982.78741.09993.32803.75422.62803.17781.78411.7853

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 119.984 C1 N3 C5 122.053
O2 C1 N3 125.517 O2 C1 H6 122.452
N3 C1 H6 112.031 N3 C4 H7 107.720
N3 C4 H8 110.458 N3 C4 H9 110.458
N3 C5 H10 109.407 N3 C5 H11 110.786
N3 C5 H12 110.786 C4 N3 C5 117.963
H7 C4 H8 109.709 H7 C4 H9 109.709
H8 C4 H9 108.776 H10 C5 H11 108.653
H10 C5 H12 108.653 H11 C5 H12 108.499
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability