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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-264.256296
Energy at 298.15K-264.264315
Nuclear repulsion energy181.308970
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/6-31G*
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 3592 3540 22.39      
2 A 3548 3497 26.37      
3 A 3471 3422 8.36      
4 A 3081 3036 15.00      
5 A 2999 2957 41.04      
6 A 2952 2910 51.19      
7 A 1778 1752 357.04      
8 A 1605 1582 117.16      
9 A 1500 1479 31.75      
10 A 1467 1446 9.43      
11 A 1460 1439 57.38      
12 A 1413 1392 26.14      
13 A 1376 1356 122.71      
14 A 1177 1160 3.07      
15 A 1126 1110 19.00      
16 A 1117 1101 12.71      
17 A 1054 1039 31.35      
18 A 873 860 3.46      
19 A 744 734 66.50      
20 A 600 592 46.78      
21 A 576 568 165.83      
22 A 525 517 14.90      
23 A 479 472 39.67      
24 A 390 384 90.58      
25 A 268 264 3.45      
26 A 149 147 5.73      
27 A 105 103 3.55      

Unscaled Zero Point Vibrational Energy (zpe) 19711.1 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 19429.3 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 PBEPBE/6-31G*
ABC
0.32160 0.13739 0.09917

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.881 0.045 0.095
H2 -2.094 0.810 -0.676
H3 -2.711 -0.676 0.064
H4 -1.883 0.542 1.085
H5 -0.624 -1.665 -0.036
N6 -0.638 -0.658 -0.184
C7 0.629 -0.111 -0.023
H8 -0.053 1.807 -0.460
H9 1.601 1.646 -0.075
N10 0.657 1.285 0.053
O11 1.643 -0.807 0.073

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.10711.10061.10742.12631.45532.51722.59863.83592.82443.6254
H21.10711.77181.79382.94912.12582.94792.28153.83582.88534.1403
H31.10061.77181.79262.31112.08803.38843.67524.89973.89734.3558
H41.10741.79381.79262.77702.14492.82142.70803.83382.83973.9080
H52.12632.94912.31112.77701.01791.99623.54463.98973.21722.4266
N61.45532.12582.08802.14491.01791.38912.54893.21472.34682.3000
C72.51722.94793.38842.82141.99621.38912.08282.00911.39831.2335
H82.59862.28153.67522.70803.54462.54892.08281.70621.02053.1618
H93.83593.83584.89973.83383.98973.21472.00911.70621.01902.4581
N102.82442.88533.89732.83973.21722.34681.39831.02051.01902.3126
O113.62544.14034.35583.90802.42662.30001.23353.16182.45812.3126

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 117.488 C1 N6 C7 124.485
H2 C1 H3 106.748 H2 C1 H4 108.201
H2 C1 N6 111.392 H3 C1 H4 108.563
H3 C1 N6 108.771 H4 C1 N6 112.945
H5 N6 C7 111.127 N6 C7 N10 114.685
N6 C7 O11 122.456 C7 N10 H8 118.039
C7 N10 H9 111.464 H8 N10 H9 113.563
N10 C7 O11 122.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.367      
2 H 0.165      
3 H 0.178      
4 H 0.182      
5 H 0.335      
6 N -0.553      
7 C 0.624      
8 H 0.320      
9 H 0.338      
10 N -0.731      
11 O -0.490      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.196 1.808 -0.664 3.732
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.698 5.101 -0.992
y 5.101 -26.031 -2.260
z -0.992 -2.260 -31.333
Traceless
 xyz
x -2.016 5.101 -0.992
y 5.101 4.985 -2.260
z -0.992 -2.260 -2.968
Polar
3z2-r2-5.937
x2-y2-4.667
xy5.101
xz-0.992
yz-2.260


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.328 -0.082 0.173
y -0.082 6.236 -0.104
z 0.173 -0.104 3.555


<r2> (average value of r2) Å2
<r2> 119.879
(<r2>)1/2 10.949