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All results from a given calculation for C3H7NO (dimethylformamide)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-246.074678
Energy at 298.15K-246.083222
HF Energy-245.612904
Nuclear repulsion energy180.334885
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 CISD/3-21G*
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' 3230 3019 0.96      
2 A' 3184 2975 21.55      
3 A' 3107 2904 38.93      
4 A' 3098 2895 33.41      
5 A' 3063 2862 89.63      
6 A' 1783 1666 329.33      
7 A' 1649 1541 8.60      
8 A' 1627 1520 15.09      
9 A' 1562 1460 8.38      
10 A' 1532 1432 11.83      
11 A' 1508 1409 17.46      
12 A' 1473 1376 113.48      
13 A' 1316 1230 55.21      
14 A' 1143 1068 154.06      
15 A' 1133 1058 7.35      
16 A' 893 835 2.66      
17 A' 678 633 7.46      
18 A' 396 370 1.41      
19 A' 334 312 13.49      
20 A" 3153 2946 34.88      
21 A" 3146 2939 41.80      
22 A" 1623 1516 14.51      
23 A" 1600 1495 4.86      
24 A" 1242 1160 4.55      
25 A" 1194 1116 0.01      
26 A" 1111 1038 1.60      
27 A" 349 326 31.06      
28 A" 230 215 2.82      
29 A" 196 183 0.45      
30 A" 137 128 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23345.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 21813.7 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 CISD/3-21G*
ABC
0.29383 0.13773 0.09722

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.717 -0.812 0.000
O2 0.235 -1.948 0.000
N3 0.000 0.351 0.000
C4 -1.469 0.299 0.000
C5 0.646 1.665 0.000
H6 1.798 -0.628 0.000
H7 -1.752 -0.751 0.000
H8 -1.870 0.791 0.890
H9 -1.870 0.791 -0.890
H10 1.730 1.536 0.000
H11 0.362 2.237 -0.888
H12 0.362 2.237 0.888

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.23311.36662.45162.47831.09662.46903.17083.17082.55733.19543.1954
O21.23312.31072.81933.63572.04522.31893.56693.56693.79054.27914.2791
N31.36662.31071.46941.46392.04712.06962.11722.11722.09632.11512.1151
C42.45162.81931.46942.51713.39521.08771.09321.09323.42882.80922.8092
C52.47833.63571.46392.51712.56613.40362.80792.80791.09141.09361.0936
H61.09662.04522.04713.39522.56613.55144.03224.03222.16513.32533.3253
H72.46902.31892.06961.08773.40363.55141.78451.78454.16513.76573.7657
H83.17083.56692.11721.09322.80794.03221.78451.77953.78193.19832.6588
H93.17083.56692.11721.09322.80794.03221.78451.77953.78192.65883.1983
H102.55733.79052.09633.42881.09142.16514.16513.78193.78191.77501.7750
H113.19544.27912.11512.80921.09363.32533.76573.19832.65881.77501.7758
H123.19544.27912.11512.80921.09363.32533.76572.65883.19831.77501.7758

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 119.596 C1 N3 C5 122.194
O2 C1 N3 125.374 O2 C1 H6 122.669
N3 C1 H6 111.958 N3 C4 H7 107.118
N3 C4 H8 110.555 N3 C4 H9 110.555
N3 C5 H10 109.383 N3 C5 H11 110.761
N3 C5 H12 110.761 C4 N3 C5 118.210
H7 C4 H8 109.820 H7 C4 H9 109.820
H8 C4 H9 108.957 H10 C5 H11 108.657
H10 C5 H12 108.657 H11 C5 H12 108.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability