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All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-414.534061
Energy at 298.15K-414.540921
HF Energy-414.534061
Nuclear repulsion energy355.020778
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 PBEPBE/Def2TZVPP
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' 3558 3515 92.05      
2 A' 3512 3470 54.81      
3 A' 3182 3144 1.03      
4 A' 3133 3095 3.17      
5 A' 1755 1733 553.48      
6 A' 1716 1695 586.33      
7 A' 1626 1606 52.98      
8 A' 1454 1437 80.18      
9 A' 1374 1357 15.67      
10 A' 1356 1340 84.89      
11 A' 1330 1314 21.02      
12 A' 1193 1179 7.50      
13 A' 1154 1140 83.00      
14 A' 1059 1046 4.43      
15 A' 965 953 5.98      
16 A' 936 924 9.12      
17 A' 752 743 2.58      
18 A' 540 534 3.62      
19 A' 523 517 6.45      
20 A' 504 498 18.52      
21 A' 372 368 18.01      
22 A" 932 920 0.33      
23 A" 791 782 53.21      
24 A" 737 728 24.44      
25 A" 708 699 18.67      
26 A" 675 667 62.24      
27 A" 560 553 34.76      
28 A" 387 383 21.56      
29 A" 163 161 0.02      
30 A" 142 141 1.61      

Unscaled Zero Point Vibrational Energy (zpe) 18544.0 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 18319.6 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 PBEPBE/Def2TZVPP
ABC
0.12899 0.06656 0.04390

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.278 0.394 0.000
C2 1.241 -1.064 0.000
N3 0.000 0.990 0.000
C4 0.053 -1.713 0.000
O5 2.289 1.089 0.000
N6 -1.140 -1.030 0.000
C7 -1.235 0.361 0.000
O8 -2.307 0.950 0.000
H9 2.189 -1.593 0.000
H10 -0.031 2.008 0.000
H11 -0.029 -2.799 0.000
H12 -2.030 -1.517 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 O5 N6 C7 O8 H9 H10 H11 H12
C11.45781.41062.43691.22682.80632.51313.62842.18582.07833.45043.8203
C21.45782.39981.35392.39382.38162.85634.08001.08563.32462.15113.3022
N31.41062.39982.70372.29132.31971.38602.30773.38621.01833.78983.2262
C42.43691.35392.70373.58441.37502.44093.55842.13893.72201.08962.0920
O51.22682.39382.29133.58444.03093.59834.59862.68402.49544.52685.0442
N62.80632.38162.31971.37504.03091.39372.29813.37633.23432.08931.0144
C72.51312.85631.38602.44093.59831.39371.22383.94192.04063.38212.0395
O83.62844.08002.30773.55844.59862.29811.22385.16562.51064.38702.4829
H92.18581.08563.38622.13892.68403.37633.94195.16564.23052.52464.2191
H102.07833.32461.01833.72202.49543.23432.04062.51064.23054.80754.0529
H113.45042.15113.78981.08964.52682.08933.38214.38702.52464.80752.3759
H123.82033.30223.22622.09205.04421.01442.03952.48294.21914.05292.3759

picture of Uracil state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 120.113 C1 C2 H9 117.760
C1 N3 C7 127.960 C1 N3 H10 116.744
C2 C1 N3 113.565 C2 C1 O5 125.962
C2 C4 N6 121.557 C2 C4 H11 122.998
N3 C1 O5 120.473 N3 C7 N6 113.131
N3 C7 O8 124.201 C4 C2 H9 122.127
C4 N6 C7 123.673 C4 N6 H12 121.482
N6 C4 H11 115.444 N6 C7 O8 122.667
C7 N3 H10 115.297 C7 N6 H12 114.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.145      
2 C -0.174      
3 N -0.094      
4 C 0.005      
5 O -0.285      
6 N -0.101      
7 C 0.179      
8 O -0.294      
9 H 0.120      
10 H 0.188      
11 H 0.121      
12 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.221 -4.112 0.000 4.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.329 1.718 0.000
y 1.718 -38.216 0.000
z 0.000 0.000 -46.243
Traceless
 xyz
x -15.100 1.718 0.000
y 1.718 13.570 0.000
z 0.000 0.000 1.530
Polar
3z2-r23.060
x2-y2-19.114
xy1.718
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.648 0.347 0.000
y 0.347 11.088 0.000
z 0.000 0.000 5.500


<r2> (average value of r2) Å2
<r2> 234.304
(<r2>)1/2 15.307