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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-263.109172
Energy at 298.15K-263.117138
Nuclear repulsion energy181.383878
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 B3LYP/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 3693 3563 30.12      
2 A 3602 3476 31.66      
3 A 3567 3442 23.79      
4 A 3132 3022 15.33      
5 A 3038 2931 54.72      
6 A 3004 2898 46.10      
7 A 1765 1703 335.96      
8 A 1672 1613 99.44      
9 A 1593 1537 32.29      
10 A 1557 1503 6.93      
11 A 1515 1461 46.58      
12 A 1468 1416 1.24      
13 A 1398 1349 255.00      
14 A 1200 1157 1.92      
15 A 1169 1128 0.64      
16 A 1125 1085 31.14      
17 A 1072 1034 31.73      
18 A 879 848 4.98      
19 A 798 770 110.62      
20 A 567 547 7.08      
21 A 553 533 150.00      
22 A 531 512 9.83      
23 A 469 453 3.22      
24 A 360 348 241.94      
25 A 292 282 3.90      
26 A 141 136 3.74      
27 A 62 60 6.94      

Unscaled Zero Point Vibrational Energy (zpe) 20110.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 19404.2 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 B3LYP/3-21G
ABC
0.32837 0.13642 0.09818

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.892 0.029 0.000
H2 2.010 0.659 0.893
H3 2.704 -0.701 -0.000
H4 2.010 0.660 -0.892
H5 0.612 -1.699 0.000
N6 0.618 -0.687 -0.000
C7 -0.638 -0.104 -0.000
H8 0.211 1.840 -0.001
H9 -1.527 1.738 0.000
N10 -0.627 1.278 0.000
O11 -1.685 -0.773 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.09951.09241.09952.15011.46072.53342.47103.82222.81173.6649
H21.09951.76981.78512.88332.13242.89702.33003.80392.85224.0616
H31.09241.76981.76982.31792.08593.39543.56034.88403.87514.3893
H41.09951.78511.76982.88382.13232.89682.32863.80342.85164.0616
H52.15012.88332.31792.88381.01202.02663.56154.04813.22432.4763
N61.46072.13242.08592.13231.01201.38532.55963.23772.32632.3045
C72.53342.89703.39542.89682.02661.38532.12112.04501.38151.2417
H82.47102.33003.56032.32863.56152.55962.12111.74081.00943.2275
H93.82223.80394.88403.80344.04813.23772.04501.74081.01052.5154
N102.81172.85223.87512.85163.22432.32631.38151.00941.01052.3066
O113.66494.06164.38934.06162.47632.30451.24173.22752.51542.3066

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 119.706 C1 N6 C7 125.765
H2 C1 H3 107.693 H2 C1 H4 108.539
H2 C1 N6 112.020 H3 C1 H4 107.686
H3 C1 N6 108.709 H4 C1 N6 112.013
H5 N6 C7 114.530 N6 C7 N10 114.448
N6 C7 O11 122.525 C7 N10 H8 124.303
C7 N10 H9 116.652 H8 N10 H9 119.045
N10 C7 O11 123.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.388     -0.257
2 H 0.195     0.109
3 H 0.214     0.151
4 H 0.195     0.109
5 H 0.320     0.324
6 N -0.706     -0.498
7 C 0.863     0.717
8 H 0.308     0.373
9 H 0.318     0.380
10 N -0.779     -0.843
11 O -0.540     -0.565


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.676 2.157 -0.001 4.262
CHELPG        
AIM        
ESP 3.713 2.180 -0.001 4.305


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.111 -4.972 0.001
y -4.972 -24.669 -0.004
z 0.001 -0.004 -31.384
Traceless
 xyz
x -3.085 -4.972 0.001
y -4.972 6.579 -0.004
z 0.001 -0.004 -3.494
Polar
3z2-r2-6.988
x2-y2-6.442
xy-4.972
xz0.001
yz-0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.377 0.142 -0.001
y 0.142 5.411 0.000
z -0.001 0.000 2.601


<r2> (average value of r2) Å2
<r2> 120.160
(<r2>)1/2 10.962