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: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-247.019632
Energy at 298.15K-247.028188
HF Energy-247.019632
Nuclear repulsion energy183.288584
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 HF/6-31G(2df,p)
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' 3321 3007 2.41      
2 A' 3263 2955 30.42      
3 A' 3166 2867 57.27      
4 A' 3155 2857 54.69      
5 A' 3143 2846 75.00      
6 A' 1949 1764 555.01      
7 A' 1665 1508 36.70      
8 A' 1631 1477 7.93      
9 A' 1606 1454 14.12      
10 A' 1574 1425 42.58      
11 A' 1565 1418 6.22      
12 A' 1542 1396 118.47      
13 A' 1397 1265 58.68      
14 A' 1190 1078 141.14      
15 A' 1177 1066 8.00      
16 A' 935 847 5.06      
17 A' 710 643 9.54      
18 A' 425 385 1.64      
19 A' 352 318 13.75      
20 A" 3210 2906 45.95      
21 A" 3207 2904 46.14      
22 A" 1621 1468 12.37      
23 A" 1600 1448 2.58      
24 A" 1281 1160 4.88      
25 A" 1231 1114 0.02      
26 A" 1170 1059 3.84      
27 A" 347 314 25.70      
28 A" 242 219 1.08      
29 A" 164 148 0.15      
30 A" 95 86 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 23966.0 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 21701.2 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 HF/6-31G(2df,p)
ABC
0.30131 0.14267 0.10043

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.686 -0.823 0.000
O2 0.213 -1.915 0.000
N3 0.000 0.336 0.000
C4 -1.445 0.337 0.000
C5 0.665 1.613 0.000
H6 1.768 -0.664 0.000
H7 -1.794 -0.684 0.000
H8 -1.827 0.846 0.881
H9 -1.827 0.846 -0.881
H10 1.739 1.474 0.000
H11 0.397 2.192 -0.880
H12 0.397 2.192 0.880

Atom - Atom Distances (Å)
  C1 O2 N3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.19021.34682.42592.43541.09392.48363.14253.14252.52663.15393.1539
O21.19022.26142.79633.55651.99602.35443.54423.54423.71664.20444.2044
N31.34682.26141.44491.43942.03152.06352.09122.09122.07832.09202.0920
C42.42592.79631.44492.46613.36541.07851.08711.08713.38122.75882.7588
C52.43543.55651.43942.46612.52953.36472.75212.75211.08281.08731.0873
H61.09391.99602.03153.36542.52953.56213.99753.99752.13793.28793.2879
H72.48362.35442.06351.07853.36473.56211.76601.76604.13993.72113.7211
H83.14253.54422.09121.08712.75213.99751.76601.76223.72643.13992.5995
H93.14253.54422.09121.08712.75213.99751.76601.76223.72642.59953.1399
H102.52663.71662.07833.38121.08282.13794.13993.72643.72641.75831.7583
H113.15394.20442.09202.75881.08733.28793.72113.13992.59951.75831.7600
H123.15394.20442.09202.75881.08733.28793.72112.59953.13991.75831.7600

picture of dimethylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 120.635 C1 N3 C5 121.843
O2 C1 N3 125.972 O2 C1 H6 121.760
N3 C1 H6 112.268 N3 C4 H7 108.859
N3 C4 H8 110.564 N3 C4 H9 110.564
N3 C5 H10 110.175 N3 C5 H11 111.016
N3 C5 H12 111.016 C4 N3 C5 117.522
H7 C4 H8 109.269 H7 C4 H9 109.269
H8 C4 H9 108.293 H10 C5 H11 108.232
H10 C5 H12 108.232 H11 C5 H12 108.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.325      
2 O -0.466      
3 N -0.292      
4 C -0.302      
5 C -0.293      
6 H 0.110      
7 H 0.198      
8 H 0.138      
9 H 0.138      
10 H 0.154      
11 H 0.144      
12 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.388 3.938 0.000 3.957
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.123 0.471 0.000
y 0.471 -36.965 0.000
z 0.000 0.000 -30.721
Traceless
 xyz
x 6.720 0.471 0.000
y 0.471 -8.043 0.000
z 0.000 0.000 1.323
Polar
3z2-r22.646
x2-y29.842
xy0.471
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.293 -0.143 0.000
y -0.143 7.256 0.000
z 0.000 0.000 4.586


<r2> (average value of r2) Å2
<r2> 122.166
(<r2>)1/2 11.053