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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-264.434648
Energy at 298.15K-264.427606
HF Energy-264.594214
Nuclear repulsion energy182.678591
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/6-31G(2df,p)
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 3696 3567 27.42      
2 A 3655 3527 35.38      
3 A 3581 3455 18.05      
4 A 3126 3016 14.88      
5 A 3050 2943 36.94      
6 A 3005 2899 47.31      
7 A 1813 1749 411.50      
8 A 1626 1569 115.13      
9 A 1523 1470 29.69      
10 A 1492 1439 33.79      
11 A 1485 1433 33.02      
12 A 1446 1395 17.41      
13 A 1403 1353 151.84      
14 A 1207 1165 2.60      
15 A 1158 1117 5.53      
16 A 1139 1099 28.36      
17 A 1077 1039 30.92      
18 A 887 856 4.70      
19 A 779 752 47.44      
20 A 594 573 33.83      
21 A 560 541 123.78      
22 A 533 514 29.33      
23 A 482 465 30.83      
24 A 386 372 102.17      
25 A 276 267 3.57      
26 A 145 140 3.59      
27 A 96 92 3.78      

Unscaled Zero Point Vibrational Energy (zpe) 20107.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19404.1 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/6-31G(2df,p)
ABC
0.32818 0.13886 0.10017

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.877 0.050 0.076
H2 -2.088 0.768 -0.727
H3 -2.695 -0.673 0.079
H4 -1.891 0.590 1.032
H5 -0.626 -1.657 -0.040
N6 -0.631 -0.656 -0.147
C7 0.628 -0.114 -0.017
H8 -0.063 1.799 -0.412
H9 1.592 1.640 -0.078
N10 0.661 1.273 0.052
O11 1.631 -0.800 0.058

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.09831.09181.09752.11911.44932.51192.56693.81832.81743.6091
H21.09831.75901.77922.91372.11852.94282.29473.83682.90214.1116
H31.09181.75901.77442.29382.07643.37123.64434.87303.87964.3277
H41.09751.77921.77442.79242.12862.81822.62503.80312.81803.9095
H52.11912.91372.29382.79241.00661.98933.52183.97353.20202.4168
N61.44932.11852.07642.12861.00661.37722.53433.19612.33062.2757
C72.51192.94283.37122.81821.98931.37722.07182.00131.38871.2173
H82.56692.29473.64432.62503.52182.53432.07181.69521.00833.1374
H93.81833.83684.87303.80313.97353.19612.00131.69521.00832.4432
N102.81742.90213.87962.81803.20202.33061.38871.00831.00832.2882
O113.60914.11164.32773.90952.41682.27571.21733.13742.44322.2882

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 117.677 C1 N6 C7 125.252
H2 C1 H3 106.835 H2 C1 H4 108.273
H2 C1 N6 111.677 H3 C1 H4 108.343
H3 C1 N6 108.753 H4 C1 N6 112.742
H5 N6 C7 111.905 N6 C7 N10 114.614
N6 C7 O11 122.543 C7 N10 H8 119.697
C7 N10 H9 112.894 H8 N10 H9 114.968
N10 C7 O11 122.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.330      
2 H 0.123      
3 H 0.137      
4 H 0.136      
5 H 0.253      
6 N -0.308      
7 C 0.418      
8 H 0.249      
9 H 0.260      
10 N -0.544      
11 O -0.394      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.297 1.849 -0.618 3.830
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 118.722
(<r2>)1/2 10.896