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All results from a given calculation for C3H7NO (dimethylformamide)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-246.154290
Energy at 298.15K-246.162720
HF Energy-245.609814
Nuclear repulsion energy178.937747
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 QCISD/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' 3131 3009 1.51      
2 A' 3086 2966 20.90      
3 A' 3011 2894 40.84      
4 A' 3002 2886 39.11      
5 A' 2952 2838 92.54      
6 A' 1694 1628 249.34      
7 A' 1605 1543 5.05      
8 A' 1585 1523 15.31      
9 A' 1512 1453 10.40      
10 A' 1485 1427 13.50      
11 A' 1455 1398 32.63      
12 A' 1417 1362 80.02      
13 A' 1272 1222 48.73      
14 A' 1102 1059 146.85      
15 A' 1098 1055 7.06      
16 A' 863 829 2.07      
17 A' 652 627 6.37      
18 A' 382 367 1.23      
19 A' 324 312 12.55      
20 A" 3057 2938 34.05      
21 A" 3048 2929 42.61      
22 A" 1581 1520 11.90      
23 A" 1558 1497 4.66      
24 A" 1204 1157 4.25      
25 A" 1159 1114 0.04      
26 A" 1056 1015 0.61      
27 A" 335 322 24.89      
28 A" 220 212 3.14      
29 A" 199 192 0.87      
30 A" 133 128 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 22588.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 21709.8 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 QCISD/3-21G*
ABC
0.28988 0.13555 0.09575

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.723 -0.817 0.000
O2 0.233 -1.964 0.000
N3 0.000 0.357 0.000
C4 -1.478 0.299 0.000
C5 0.650 1.679 0.000
H6 1.812 -0.627 0.000
H7 -1.750 -0.763 0.000
H8 -1.885 0.791 0.896
H9 -1.885 0.791 -0.896
H10 1.741 1.543 0.000
H11 0.365 2.255 -0.895
H12 0.365 2.255 0.895

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.24741.37902.46752.49731.10552.47343.19233.19232.57043.21953.2195
O21.24742.33282.83633.66712.06952.31783.58843.58843.81784.31474.3147
N31.37902.33281.47901.47342.06192.07762.13192.13192.10682.12962.1296
C42.46752.83631.47902.53703.41751.09571.10081.10083.45132.83292.8329
C52.49733.66711.47342.53702.58203.42422.83222.83221.09921.10131.1013
H61.10552.06952.06193.41752.58203.56444.05974.05972.17103.34613.3461
H72.47342.31782.07761.09573.42423.56441.79891.79894.18393.79233.7923
H83.19233.58842.13191.10082.83224.05971.79891.79293.81043.22742.6848
H93.19233.58842.13191.10082.83224.05971.79891.79293.81042.68483.2274
H102.57043.81782.10683.45131.09922.17104.18393.81043.81041.78881.7888
H113.21954.31472.12962.83291.10133.34613.79233.22742.68481.78881.7891
H123.21954.31472.12962.83291.10133.34613.79232.68483.22741.78881.7891

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 119.351 C1 N3 C5 122.177
O2 C1 N3 125.222 O2 C1 H6 123.069
N3 C1 H6 111.709 N3 C4 H7 106.643
N3 C4 H8 110.598 N3 C4 H9 110.598
N3 C5 H10 109.086 N3 C5 H11 110.778
N3 C5 H12 110.778 C4 N3 C5 118.472
H7 C4 H8 109.965 H7 C4 H9 109.965
H8 C4 H9 109.052 H10 C5 H11 108.756
H10 C5 H12 108.756 H11 C5 H12 108.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability