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All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-412.607242
Energy at 298.15K-412.614604
HF Energy-412.607242
Nuclear repulsion energy360.979603
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/TZVP
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' 3876 3522 131.53      
2 A' 3835 3485 93.75      
3 A' 3406 3095 1.42      
4 A' 3372 3064 3.07      
5 A' 1977 1796 462.69      
6 A' 1957 1779 1390.89      
7 A' 1827 1660 141.64      
8 A' 1636 1487 115.69      
9 A' 1558 1416 3.61      
10 A' 1541 1400 174.20      
11 A' 1521 1382 74.89      
12 A' 1333 1211 6.41      
13 A' 1303 1184 155.41      
14 A' 1169 1062 18.63      
15 A' 1073 975 7.81      
16 A' 1046 951 9.74      
17 A' 822 746 5.44      
18 A' 611 555 3.77      
19 A' 595 541 10.32      
20 A' 563 511 25.35      
21 A' 429 390 30.19      
22 A" 1075 977 1.50      
23 A" 877 797 88.66      
24 A" 842 765 61.72      
25 A" 787 715 9.07      
26 A" 688 626 113.75      
27 A" 562 511 47.89      
28 A" 408 371 31.55      
29 A" 163 148 0.84      
30 A" 153 139 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 20503.3 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 18629.3 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/TZVP
ABC
0.13202 0.06936 0.04547

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.246 0.386 0.000
C2 1.220 -1.062 0.000
N3 0.000 0.992 0.000
C4 0.054 -1.685 0.000
O5 2.236 1.050 0.000
N6 -1.131 -1.003 0.000
C7 -1.202 0.360 0.000
O8 -2.245 0.937 0.000
H9 2.155 -1.579 0.000
H10 -0.038 1.987 0.000
H11 -0.024 -2.754 0.000
H12 -2.006 -1.471 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 O5 N6 C7 O8 H9 H10 H11 H12
C11.44891.38522.38931.19252.75292.44773.53372.16512.05183.38743.7448
C21.44892.38941.32112.34442.35142.80873.99991.06853.29862.09973.2515
N31.38522.38942.67792.23682.29381.35812.24583.35470.99553.74673.1772
C42.38931.32112.67793.49871.36752.40043.48702.10353.67331.07222.0715
O51.19252.34442.23683.49873.94383.50664.48252.63012.45924.42514.9350
N62.75292.35142.29381.36753.94381.36542.23683.33623.18402.07180.9924
C72.44772.80871.35812.40043.50661.36541.19153.87692.00063.33012.0004
O83.53373.99992.24583.48704.48252.23681.19155.06822.44474.30762.4196
H92.16511.06853.35472.10352.63013.33623.87695.06824.18612.47604.1626
H102.05183.29860.99553.67332.45923.18402.00062.44474.18614.74153.9795
H113.38742.09973.74671.07224.42512.07183.33014.30762.47604.74152.3612
H123.74483.25153.17722.07154.93500.99242.00042.41964.16263.97952.3612

picture of Uracil state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 119.142 C1 C2 H9 117.861
C1 N3 C7 126.317 C1 N3 H10 118.121
C2 C1 N3 114.923 C2 C1 O5 124.864
C2 C4 N6 121.978 C2 C4 H11 122.299
N3 C1 O5 120.213 N3 C7 N6 114.752
N3 C7 O8 123.354 C4 C2 H9 122.997
C4 N6 C7 122.888 C4 N6 H12 121.946
N6 C4 H11 115.723 N6 C7 O8 121.894
C7 N3 H10 115.562 C7 N6 H12 115.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.284      
2 C -0.161      
3 N -0.242      
4 C -0.007      
5 O -0.427      
6 N -0.225      
7 C 0.371      
8 O -0.462      
9 H 0.164      
10 H 0.293      
11 H 0.130      
12 H 0.281      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.093 -4.688 0.000 4.814
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.658 1.864 0.000
y 1.864 -38.190 0.000
z 0.000 0.000 -46.425
Traceless
 xyz
x -17.350 1.864 0.000
y 1.864 14.851 0.000
z 0.000 0.000 2.499
Polar
3z2-r24.998
x2-y2-21.468
xy1.864
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.535 0.701 0.000
y 0.701 8.777 0.000
z 0.000 0.000 4.895


<r2> (average value of r2) Å2
<r2> 227.882
(<r2>)1/2 15.096