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All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: M06-2X/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 M06-2X/3-21G*
 hartrees
Energy at 0K-412.352400
Energy at 298.15K-412.359748
HF Energy-412.352400
Nuclear repulsion energy354.686608
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 M06-2X/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' 3602 3412 126.06      
2 A' 3556 3369 79.90      
3 A' 3304 3130 3.39      
4 A' 3238 3067 1.35      
5 A' 1837 1740 410.10      
6 A' 1823 1727 590.06      
7 A' 1710 1620 65.24      
8 A' 1516 1436 76.58      
9 A' 1452 1375 2.59      
10 A' 1441 1365 45.63      
11 A' 1404 1330 157.62      
12 A' 1277 1210 9.22      
13 A' 1221 1157 90.70      
14 A' 1104 1046 12.02      
15 A' 1010 957 5.69      
16 A' 972 920 3.28      
17 A' 781 740 2.15      
18 A' 571 541 4.44      
19 A' 549 520 6.05      
20 A' 530 502 18.53      
21 A' 396 375 21.16      
22 A" 1067 1011 1.48      
23 A" 911 862 257.08      
24 A" 869 823 28.50      
25 A" 777 736 10.94      
26 A" 746 707 43.00      
27 A" 654 619 106.30      
28 A" 443 419 19.42      
29 A" 187 177 1.16      
30 A" 180 170 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 19562.4 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 18529.5 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 M06-2X/3-21G*
ABC
0.12889 0.06633 0.04379

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.283 0.393 0.000
C2 1.240 -1.069 0.000
N3 0.000 0.983 0.000
C4 0.059 -1.708 0.000
O5 2.296 1.091 0.000
N6 -1.145 -1.032 0.000
C7 -1.241 0.362 0.000
O8 -2.314 0.958 0.000
H9 2.177 -1.600 0.000
H10 -0.021 2.001 0.000
H11 -0.013 -2.787 0.000
H12 -2.029 -1.530 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 O5 N6 C7 O8 H9 H10 H11 H12
C11.46221.41242.43181.22992.81562.52443.64142.18422.07093.43423.8305
C21.46222.39711.34302.40382.38522.86354.09101.07713.31882.12673.3016
N31.41242.39712.69152.29862.31751.38772.31423.37791.01853.77013.2302
C42.43181.34302.69153.58301.38072.44393.56892.12063.71001.08162.0956
O51.22992.40382.29863.58304.04323.61134.61202.69352.49004.51325.0576
N62.81562.38522.31751.38074.04321.39692.30773.37003.23452.08871.0150
C72.52442.86351.38772.44393.61131.39691.22763.94062.04333.37982.0497
O83.64144.09102.31423.56894.61202.30771.22765.16812.51894.39552.5044
H92.18421.07713.37792.12062.69353.37003.94065.16814.21912.49074.2065
H102.07093.31881.01853.71002.49003.23452.04332.51894.21914.78844.0624
H113.43422.12673.77011.08164.51322.08873.37984.39552.49074.78842.3760
H123.83053.30163.23022.09565.05761.01502.04972.50444.20654.06242.3760

picture of Uracil state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 120.133 C1 C2 H9 117.865
C1 N3 C7 128.718 C1 N3 H10 115.892
C2 C1 N3 112.984 C2 C1 O5 126.267
C2 C4 N6 122.253 C2 C4 H11 122.233
N3 C1 O5 120.750 N3 C7 N6 112.663
N3 C7 O8 124.352 C4 C2 H9 122.001
C4 N6 C7 123.249 C4 N6 H12 121.272
N6 C4 H11 115.514 N6 C7 O8 122.985
C7 N3 H10 115.390 C7 N6 H12 115.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.682      
2 C -0.334      
3 N -0.844      
4 C 0.134      
5 O -0.497      
6 N -0.817      
7 C 0.933      
8 O -0.502      
9 H 0.245      
10 H 0.369      
11 H 0.265      
12 H 0.366      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.139 -4.115 0.000 4.270
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.556 1.821 0.000
y 1.821 -37.376 0.000
z 0.000 0.000 -46.332
Traceless
 xyz
x -14.702 1.821 0.000
y 1.821 14.068 0.000
z 0.000 0.000 0.634
Polar
3z2-r21.268
x2-y2-19.180
xy1.821
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.931 0.486 0.000
y 0.486 8.225 0.000
z 0.000 0.000 2.379


<r2> (average value of r2) Å2
<r2> 234.430
(<r2>)1/2 15.311