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All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: wB97X-D/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 wB97X-D/3-21G*
 hartrees
Energy at 0K-412.401350
Energy at 298.15K-412.408711
HF Energy-412.401350
Nuclear repulsion energy355.182093
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 wB97X-D/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' 3645 3454 110.29      
2 A' 3618 3429 70.01      
3 A' 3315 3142 1.89      
4 A' 3262 3092 2.33      
5 A' 1843 1747 506.25      
6 A' 1812 1717 476.44      
7 A' 1720 1630 39.60      
8 A' 1530 1450 66.65      
9 A' 1464 1388 3.98      
10 A' 1452 1376 21.68      
11 A' 1406 1333 172.66      
12 A' 1290 1223 13.10      
13 A' 1222 1159 86.58      
14 A' 1111 1053 11.19      
15 A' 1017 964 4.61      
16 A' 974 923 3.71      
17 A' 781 740 2.04      
18 A' 570 540 5.16      
19 A' 548 520 5.08      
20 A' 533 505 18.34      
21 A' 391 370 20.13      
22 A" 1057 1002 2.77      
23 A" 912 865 252.00      
24 A" 868 823 23.94      
25 A" 780 739 10.52      
26 A" 751 712 47.20      
27 A" 671 636 100.55      
28 A" 446 423 20.98      
29 A" 187 177 0.73      
30 A" 178 169 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 19677.2 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 18650.0 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 wB97X-D/3-21G*
ABC
0.12930 0.06649 0.04391

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.278 0.395 0.000
C2 1.234 -1.063 0.000
N3 0.000 0.986 0.000
C4 0.058 -1.707 0.000
O5 2.295 1.088 0.000
N6 -1.141 -1.032 0.000
C7 -1.236 0.359 0.000
O8 -2.312 0.953 0.000
H9 2.173 -1.590 0.000
H10 -0.026 1.999 0.000
H11 -0.012 -2.786 0.000
H12 -2.023 -1.528 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 O5 N6 C7 O8 H9 H10 H11 H12
C11.45831.40822.43021.23112.80832.51433.63282.17722.06773.43203.8199
C21.45832.39191.34122.39842.37572.85054.07891.07653.31162.12623.2903
N31.40822.39192.69342.29772.31781.38582.31183.37011.01403.77163.2263
C42.43021.34122.69343.58031.37612.43783.56222.11833.70741.08102.0886
O51.23112.39842.29773.58034.03763.60594.60902.68092.49384.50875.0487
N62.80832.37572.31781.37614.03761.39402.30403.36083.22982.08621.0117
C72.51432.85051.38582.43783.60591.39401.22863.92692.03853.37482.0441
O83.63284.07892.31183.56224.60902.30401.22865.15542.51404.38942.4971
H92.17721.07653.37012.11832.68093.36083.92695.15544.20952.49054.1964
H102.06773.31161.01403.70742.49383.22982.03852.51404.20954.78524.0531
H113.43202.12623.77161.08104.50872.08623.37484.38942.49054.78522.3724
H123.81993.29033.22632.08865.04871.01172.04412.49714.19644.05312.3724

picture of Uracil state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 120.412 C1 C2 H9 117.604
C1 N3 C7 128.289 C1 N3 H10 116.282
C2 C1 N3 113.107 C2 C1 O5 125.988
C2 C4 N6 121.914 C2 C4 H11 122.387
N3 C1 O5 120.905 N3 C7 N6 112.983
N3 C7 O8 124.210 C4 C2 H9 121.984
C4 N6 C7 123.295 C4 N6 H12 121.264
N6 C4 H11 115.699 N6 C7 O8 122.807
C7 N3 H10 115.429 C7 N6 H12 115.441
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.700      
2 C -0.361      
3 N -0.851      
4 C 0.132      
5 O -0.507      
6 N -0.824      
7 C 0.946      
8 O -0.509      
9 H 0.254      
10 H 0.374      
11 H 0.275      
12 H 0.371      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.225 -4.079 0.000 4.259
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -55.994 1.859 0.000
y 1.859 -36.812 0.000
z 0.000 0.000 -45.904
Traceless
 xyz
x -14.636 1.859 0.000
y 1.859 14.138 0.000
z 0.000 0.000 0.498
Polar
3z2-r20.997
x2-y2-19.182
xy1.859
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.902 0.461 0.000
y 0.461 8.232 0.000
z 0.000 0.000 2.398


<r2> (average value of r2) Å2
<r2> 233.546
(<r2>)1/2 15.282