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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-46.243986
Energy at 298.15K-46.252185
HF Energy-45.787558
Nuclear repulsion energy98.884783
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' 3186 3079 7.48      
2 A' 3160 3053 41.95      
3 A' 3050 2947 88.68      
4 A' 3031 2929 99.22      
5 A' 3026 2924 77.28      
6 A' 1629 1574 396.83      
7 A' 1547 1495 12.59      
8 A' 1531 1479 9.44      
9 A' 1492 1442 27.15      
10 A' 1476 1426 18.13      
11 A' 1425 1377 76.51      
12 A' 1395 1348 2.72      
13 A' 1271 1228 35.09      
14 A' 1101 1064 121.63      
15 A' 1093 1056 7.08      
16 A' 847 819 2.06      
17 A' 628 607 6.50      
18 A' 382 369 1.62      
19 A' 306 295 12.25      
20 A" 3122 3017 42.18      
21 A" 3115 3010 81.27      
22 A" 1524 1473 20.37      
23 A" 1503 1452 6.10      
24 A" 1182 1142 5.94      
25 A" 1138 1100 0.13      
26 A" 969 936 1.13      
27 A" 332 321 36.56      
28 A" 225 217 1.95      
29 A" 140 136 0.15      
30 A" 95 92 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 22459.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 21702.7 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 MP2/CEP-31G
ABC
0.28200 0.13064 0.09251

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 0.724 -0.839 0.000
O2 0.208 -2.015 0.000
N3 0.000 0.361 0.000
C4 -1.494 0.350 0.000
C5 0.688 1.685 0.000
H6 1.825 -0.677 0.000
H7 -1.834 -0.701 0.000
H8 -1.878 0.868 0.905
H9 -1.878 0.868 -0.905
H10 1.784 1.530 0.000
H11 0.405 2.267 -0.903
H12 0.405 2.267 0.903

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.28441.40152.51702.52381.11252.56133.24073.24072.59573.25003.2500
O21.28442.38542.91423.73082.09872.42833.67203.67203.88014.38064.3806
N31.40152.38541.49451.49162.09922.11892.14512.14512.13332.14742.1474
C42.51702.91421.49452.55813.47431.10401.11111.11113.48492.84582.8458
C52.52383.73081.49162.55812.62083.47092.84022.84021.10741.11121.1112
H61.11252.09872.09923.47432.62083.65834.11254.11252.20743.39043.3904
H72.56132.42832.11891.10403.47093.65831.81191.81194.25063.82543.8254
H83.24073.67202.14511.11112.84024.11251.81191.81013.82983.23062.6770
H93.24073.67202.14511.11112.84024.11251.81191.81013.82982.67703.2306
H102.59573.88012.13333.48491.10742.20744.25063.82983.82981.80571.8057
H113.25004.38062.14742.84581.11123.39043.82543.23062.67701.80571.8068
H123.25004.38062.14742.84581.11123.39043.82542.67703.23061.80571.8068

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 120.674 C1 N3 C5 121.437
O2 C1 N3 125.216 O2 C1 H6 122.065
N3 C1 H6 112.719 N3 C4 H7 108.317
N3 C4 H8 109.957 N3 C4 H9 109.957
N3 C5 H10 109.447 N3 C5 H11 110.336
N3 C5 H12 110.336 C4 N3 C5 117.888
H7 C4 H8 109.759 H7 C4 H9 109.759
H8 C4 H9 109.082 H10 C5 H11 108.956
H10 C5 H12 108.956 H11 C5 H12 108.778
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability