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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-263.015575
Energy at 298.15K-263.023626
Nuclear repulsion energy181.786355
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 B3PW91/3-21G*
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 3722 3571 36.60      
2 A 3634 3486 38.19      
3 A 3594 3448 28.55      
4 A 3142 3014 13.09      
5 A 3050 2926 51.25      
6 A 3008 2886 44.09      
7 A 1780 1708 348.53      
8 A 1671 1604 109.32      
9 A 1587 1522 37.41      
10 A 1553 1490 8.37      
11 A 1514 1453 65.44      
12 A 1470 1410 1.42      
13 A 1412 1355 230.68      
14 A 1204 1155 1.62      
15 A 1167 1120 1.18      
16 A 1136 1090 29.39      
17 A 1077 1033 25.52      
18 A 890 853 5.17      
19 A 807 775 121.79      
20 A 571 547 7.70      
21 A 560 537 171.11      
22 A 532 510 9.29      
23 A 483 464 0.76      
24 A 384 369 237.18      
25 A 292 280 3.87      
26 A 154 148 3.62      
27 A 75 72 5.77      

Unscaled Zero Point Vibrational Energy (zpe) 20234.4 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19412.9 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 B3PW91/3-21G*
ABC
0.32977 0.13726 0.09874

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.883 0.026 -0.000
H2 2.003 0.656 0.894
H3 2.698 -0.704 -0.001
H4 2.002 0.657 -0.893
H5 0.608 -1.699 0.001
N6 0.615 -0.688 0.000
C7 -0.636 -0.102 0.000
H8 0.221 1.833 0.000
H9 -1.516 1.739 0.000
N10 -0.619 1.275 -0.000
O11 -1.684 -0.767 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.10031.09331.10032.14541.45502.52262.45543.80692.79723.6546
H21.10031.76991.78762.87952.12852.88802.31543.78962.83934.0525
H31.09331.76991.76982.31482.08223.38743.54524.87083.86244.3822
H41.10031.78761.76982.88012.12832.88682.31363.78762.83734.0515
H52.14542.87952.31482.88011.01132.02383.55324.04143.21742.4739
N61.45502.12852.08222.12831.01131.38162.55163.23022.31912.3009
C72.52262.88803.38742.88682.02381.38162.11692.04131.37781.2413
H82.45542.31543.54522.31363.55322.55162.11691.73991.00883.2239
H93.80693.78964.87083.78764.04143.23022.04131.73991.00982.5124
N102.79722.83933.86242.83733.21742.31911.37781.00881.00982.3037
O113.65464.05254.38224.05152.47392.30091.24133.22392.51242.3037

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 119.813 C1 N6 C7 125.561
H2 C1 H3 107.568 H2 C1 H4 108.637
H2 C1 N6 112.066 H3 C1 H4 107.561
H3 C1 N6 108.763 H4 C1 N6 112.050
H5 N6 C7 114.625 N6 C7 N10 114.371
N6 C7 O11 122.538 C7 N10 H8 124.271
C7 N10 H9 116.661 H8 N10 H9 119.069
N10 C7 O11 123.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.449      
2 H 0.216      
3 H 0.237      
4 H 0.216      
5 H 0.340      
6 N -0.736      
7 C 0.879      
8 H 0.326      
9 H 0.337      
10 N -0.819      
11 O -0.549      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.758 2.188 0.001 4.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.981 -5.030 -0.002
y -5.030 -24.403 0.000
z -0.002 0.000 -31.400
Traceless
 xyz
x -3.080 -5.030 -0.002
y -5.030 6.787 0.000
z -0.002 0.000 -3.708
Polar
3z2-r2-7.415
x2-y2-6.578
xy-5.030
xz-0.002
yz0.000


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


<r2> (average value of r2) Å2
<r2> 119.520
(<r2>)1/2 10.933