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All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-412.470288
Energy at 298.15K-412.477719
HF Energy-412.470288
Nuclear repulsion energy360.217634
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*
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' 3887 3493 128.34      
2 A' 3851 3460 95.43      
3 A' 3443 3094 1.06      
4 A' 3415 3068 4.57      
5 A' 2014 1810 474.74      
6 A' 1996 1794 1203.00      
7 A' 1848 1661 127.96      
8 A' 1651 1483 134.57      
9 A' 1564 1405 2.94      
10 A' 1559 1401 182.51      
11 A' 1534 1379 29.23      
12 A' 1351 1214 13.88      
13 A' 1313 1180 121.14      
14 A' 1179 1060 18.78      
15 A' 1077 968 7.31      
16 A' 1056 949 6.65      
17 A' 829 745 4.42      
18 A' 609 547 4.93      
19 A' 593 532 6.54      
20 A' 561 504 23.81      
21 A' 425 382 31.61      
22 A" 1112 999 0.01      
23 A" 907 815 107.87      
24 A" 862 775 109.30      
25 A" 804 723 4.98      
26 A" 732 658 98.64      
27 A" 587 527 73.78      
28 A" 429 385 33.34      
29 A" 179 161 1.35      
30 A" 166 149 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 20766.9 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 18659.0 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*
ABC
0.13162 0.06899 0.04527

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.260 0.396 0.000
C2 1.230 -1.068 0.000
N3 0.000 0.985 0.000
C4 0.057 -1.693 0.000
O5 2.245 1.070 0.000
N6 -1.135 -1.012 0.000
C7 -1.219 0.359 0.000
O8 -2.260 0.942 0.000
H9 2.162 -1.594 0.000
H10 -0.026 1.983 0.000
H11 -0.030 -2.762 0.000
H12 -2.005 -1.494 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 O5 N6 C7 O8 H9 H10 H11 H12
C11.46351.39122.41051.19322.77782.47973.56292.18422.04293.41123.7729
C21.46352.39231.32932.36622.36492.83394.02711.07053.29862.11153.2628
N31.39122.39232.67782.24662.29611.37012.26083.36480.99863.74673.1881
C42.41051.32932.67783.52421.37212.41603.50832.10753.67641.07282.0713
O51.19322.36622.24663.52423.96913.53614.50722.66502.44744.45634.9635
N62.77782.36492.29611.37213.96911.37342.25453.34733.19322.06960.9953
C72.47972.83391.37012.41603.53611.37341.19333.90432.01503.33992.0130
O83.56294.02712.26083.50834.50722.25451.19335.09752.46544.32332.4489
H92.18421.07053.36482.10752.66503.34733.90435.09754.19272.48374.1682
H102.04293.29860.99863.67642.44743.19322.01502.46544.19274.74484.0008
H113.41122.11153.74671.07284.45632.06963.33994.32332.48374.74482.3470
H123.77293.26283.18812.07134.96350.99532.01302.44894.16824.00082.3470

picture of Uracil state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 119.257 C1 C2 H9 118.250
C1 N3 C7 127.794 C1 N3 H10 116.522
C2 C1 N3 113.840 C2 C1 O5 125.605
C2 C4 N6 122.189 C2 C4 H11 122.689
N3 C1 O5 120.555 N3 C7 N6 113.637
N3 C7 O8 123.623 C4 C2 H9 122.493
C4 N6 C7 123.282 C4 N6 H12 121.255
N6 C4 H11 115.121 N6 C7 O8 122.740
C7 N3 H10 115.684 C7 N6 H12 115.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.830      
2 C -0.409      
3 N -0.923      
4 C 0.176      
5 O -0.585      
6 N -0.865      
7 C 1.035      
8 O -0.599      
9 H 0.245      
10 H 0.426      
11 H 0.248      
12 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.068 -4.598 0.000 4.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.251 1.765 0.000
y 1.765 -37.480 0.000
z 0.000 0.000 -45.839
Traceless
 xyz
x -16.592 1.765 0.000
y 1.765 14.566 0.000
z 0.000 0.000 2.026
Polar
3z2-r24.052
x2-y2-20.771
xy1.765
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.722 0.675 0.000
y 0.675 8.192 0.000
z 0.000 0.000 3.407


<r2> (average value of r2) Å2
<r2> 228.187
(<r2>)1/2 15.106