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All results from a given calculation for C4H4N2O2 (Uracil)

using model chemistry: HF/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 HF/Def2TZVPP
 hartrees
Energy at 0K-412.641305
Energy at 298.15K-412.648773
HF Energy-412.641305
Nuclear repulsion energy361.408708
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/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' 3882 3518 125.61      
2 A' 3839 3479 92.29      
3 A' 3403 3084 1.05      
4 A' 3364 3049 3.06      
5 A' 1967 1783 445.73      
6 A' 1950 1767 1329.54      
7 A' 1824 1654 132.03      
8 A' 1636 1483 117.27      
9 A' 1552 1407 2.85      
10 A' 1546 1401 174.67      
11 A' 1522 1379 41.11      
12 A' 1338 1212 18.61      
13 A' 1302 1180 133.56      
14 A' 1169 1060 17.17      
15 A' 1075 975 7.97      
16 A' 1048 950 8.95      
17 A' 823 746 5.44      
18 A' 610 553 4.50      
19 A' 594 538 9.03      
20 A' 562 510 25.63      
21 A' 429 389 30.14      
22 A" 1111 1007 0.14      
23 A" 915 829 97.12      
24 A" 873 791 48.73      
25 A" 806 731 13.12      
26 A" 729 661 80.77      
27 A" 582 528 53.16      
28 A" 431 391 28.54      
29 A" 176 160 0.66      
30 A" 164 149 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 20609.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 18680.0 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/Def2TZVPP
ABC
0.13224 0.06958 0.04559

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.245 0.390 0.000
C2 1.224 -1.062 0.000
N3 0.000 0.987 0.000
C4 0.056 -1.686 0.000
O5 2.223 1.068 0.000
N6 -1.127 -1.008 0.000
C7 -1.202 0.355 0.000
O8 -2.241 0.933 0.000
H9 2.154 -1.585 0.000
H10 -0.030 1.980 0.000
H11 -0.025 -2.753 0.000
H12 -1.997 -1.482 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 O5 N6 C7 O8 H9 H10 H11 H12
C11.45151.38122.39171.18952.75352.44803.52882.17392.03903.38943.7435
C21.45152.38621.32352.35202.35162.80943.99801.06753.29032.10223.2478
N31.38122.38622.67312.22422.29101.35832.24213.35490.99403.73953.1751
C42.39171.32352.67313.50331.36412.39773.48362.09983.66701.07002.0634
O51.18952.35202.22423.50333.94073.49854.46622.65382.43084.43254.9299
N62.75352.35162.29101.36413.94071.36472.23743.33163.18312.06370.9904
C72.44802.80941.35832.39773.49851.36471.18883.87682.00403.32302.0012
O83.52883.99802.24213.48364.46622.23741.18885.06552.44704.30022.4267
H92.17391.06753.35492.09982.65383.33163.87685.06554.18142.47214.1520
H102.03903.29030.99403.66702.43083.18312.00402.44704.18144.73293.9817
H113.38942.10223.73951.07004.43252.06373.32304.30022.47214.73292.3456
H123.74353.24783.17512.06344.92990.99042.00122.42674.15203.98172.3456

picture of Uracil state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 118.985 C1 C2 H9 118.522
C1 N3 C7 126.655 C1 N3 H10 117.359
C2 C1 N3 114.765 C2 C1 O5 125.604
C2 C4 N6 122.070 C2 C4 H11 122.515
N3 C1 O5 119.631 N3 C7 N6 114.568
N3 C7 O8 123.206 C4 C2 H9 122.494
C4 N6 C7 122.957 C4 N6 H12 121.603
N6 C4 H11 115.415 N6 C7 O8 122.226
C7 N3 H10 115.986 C7 N6 H12 115.441
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.426      
2 C -0.211      
3 N -0.295      
4 C 0.127      
5 O -0.456      
6 N -0.300      
7 C 0.528      
8 O -0.474      
9 H 0.115      
10 H 0.223      
11 H 0.103      
12 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.094 -4.589 0.000 4.718
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.986 1.861 0.000
y 1.861 -37.966 0.000
z 0.000 0.000 -46.145
Traceless
 xyz
x -16.930 1.861 0.000
y 1.861 14.599 0.000
z 0.000 0.000 2.331
Polar
3z2-r24.662
x2-y2-21.019
xy1.861
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.667 0.617 0.000
y 0.617 9.194 0.000
z 0.000 0.000 5.191


<r2> (average value of r2) Å2
<r2> 227.123
(<r2>)1/2 15.071