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All results from a given calculation for C2H6N2O (Urea, methyl-)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-49.547855
Energy at 298.15K-49.556310
Nuclear repulsion energy102.746827
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/CEP-31G*
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 3941 3539 37.11      
2 A 3875 3480 39.98      
3 A 3822 3432 33.34      
4 A 3322 2983 56.11      
5 A 3286 2951 72.55      
6 A 3226 2897 66.26      
7 A 1951 1752 700.71      
8 A 1796 1613 157.68      
9 A 1646 1478 31.75      
10 A 1626 1460 8.16      
11 A 1616 1451 31.68      
12 A 1592 1429 55.52      
13 A 1519 1364 220.43      
14 A 1301 1169 2.36      
15 A 1244 1117 15.87      
16 A 1231 1106 51.76      
17 A 1165 1046 34.68      
18 A 948 852 5.16      
19 A 872 783 117.50      
20 A 685 615 64.43      
21 A 635 570 216.69      
22 A 586 526 22.93      
23 A 529 475 60.78      
24 A 422 379 98.28      
25 A 303 273 1.91      
26 A 189 170 3.55      
27 A 106 95 9.42      

Unscaled Zero Point Vibrational Energy (zpe) 21717.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 19502.4 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/CEP-31G*
ABC
0.32462 0.13962 0.10108

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.845 0.081 0.114
H2 -2.003 0.928 -0.554
H3 -2.687 -0.595 -0.015
H4 -1.837 0.444 1.144
H5 -0.643 -1.635 -0.102
N6 -0.626 -0.644 -0.238
C7 0.641 -0.145 -0.026
H8 0.087 1.782 -0.474
H9 1.686 1.552 -0.011
N10 0.737 1.238 0.058
O11 1.609 -0.865 0.093

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.09061.08761.09172.10681.46132.50072.64063.82702.83003.5818
H21.09061.75451.77312.93732.11392.90232.25913.78022.82454.0849
H31.08761.75451.77372.29562.07363.35903.68204.87153.88464.3065
H41.09171.77311.77372.70262.13522.80342.84783.86932.90463.8336
H52.10682.93732.29562.70261.00071.96923.51443.94853.19162.3884
N61.46132.11392.07362.13521.00071.37872.53993.19672.34252.2707
C72.50072.90233.35902.80341.96921.37872.05441.99241.38851.2126
H82.64062.25913.68202.84783.51442.53992.05441.68011.00053.1061
H93.82703.78024.87153.86933.94853.19671.99241.68011.00162.4207
N102.83002.82453.88462.90463.19162.34251.38851.00051.00162.2772
O113.58184.08494.30653.83362.38842.27071.21263.10612.42072.2772

picture of Urea, methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N6 H5 116.428 C1 N6 C7 123.384
H2 C1 H3 107.317 H2 C1 H4 108.684
H2 C1 N6 111.030 H3 C1 H4 108.952
H3 C1 N6 107.986 H4 C1 N6 112.710
H5 N6 C7 110.704 N6 C7 N10 115.674
N6 C7 O11 122.261 C7 N10 H8 117.696
C7 N10 H9 111.919 H8 N10 H9 114.098
N10 C7 O11 122.060
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.327      
2 H 0.125      
3 H 0.171      
4 H 0.152      
5 H 0.366      
6 N -0.294      
7 C -0.065      
8 H 0.338      
9 H 0.375      
10 N -0.558      
11 O -0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.605 2.338 -0.662 4.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.580 6.165 -1.314
y 6.165 -27.037 -2.389
z -1.314 -2.389 -31.838
Traceless
 xyz
x -2.143 6.165 -1.314
y 6.165 4.672 -2.389
z -1.314 -2.389 -2.529
Polar
3z2-r2-5.058
x2-y2-4.543
xy6.165
xz-1.314
yz-2.389


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.182 -0.266 0.162
y -0.266 5.327 -0.045
z 0.162 -0.045 3.692


<r2> (average value of r2) Å2
<r2> 98.453
(<r2>)1/2 9.922