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

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-263.046183
Energy at 298.15K-263.054596
Nuclear repulsion energy184.688256
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/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 3947 3574 41.95      
2 A 3887 3519 46.97      
3 A 3827 3466 37.54      
4 A 3267 2958 26.43      
5 A 3213 2910 47.76      
6 A 3162 2863 46.66      
7 A 1959 1774 591.89      
8 A 1776 1608 147.05      
9 A 1645 1489 31.58      
10 A 1617 1464 26.05      
11 A 1611 1459 33.09      
12 A 1592 1442 34.46      
13 A 1522 1378 197.25      
14 A 1310 1186 2.27      
15 A 1252 1133 8.19      
16 A 1230 1114 42.81      
17 A 1173 1062 30.18      
18 A 953 863 6.59      
19 A 884 800 82.40      
20 A 647 586 35.27      
21 A 599 543 75.80      
22 A 573 519 84.00      
23 A 523 474 39.97      
24 A 417 378 141.88      
25 A 305 277 3.27      
26 A 173 157 2.31      
27 A 106 96 5.63      

Unscaled Zero Point Vibrational Energy (zpe) 21584.8 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 19545.0 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/6-31G(2df,p)
ABC
0.33499 0.14145 0.10223

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.865 0.065 0.085
H2 -2.058 0.815 -0.678
H3 -2.679 -0.647 0.041
H4 -1.885 0.548 1.058
H5 -0.634 -1.626 -0.051
N6 -0.630 -0.641 -0.163
C7 0.620 -0.117 -0.018
H8 -0.021 1.791 -0.397
H9 1.610 1.602 -0.056
N10 0.686 1.252 0.042
O11 1.593 -0.806 0.067

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.08661.08231.08662.09601.44372.49432.57203.80302.81433.5664
H21.08661.74381.76432.89462.10272.91132.27633.80272.87024.0635
H31.08231.74381.75862.26892.05903.34243.63394.84443.86404.2752
H41.08661.76431.75862.74212.11602.80622.67193.81692.85253.8616
H52.09602.89462.26892.74210.99201.96323.48923.93203.16772.3765
N61.44372.10272.05902.11600.99201.36372.51793.17202.31432.2414
C72.49432.91133.34242.80621.96321.36372.04801.98391.37121.1954
H82.57202.27633.63392.67193.48922.51792.04801.67680.99183.0929
H93.80303.80274.84443.81693.93203.17201.98391.67680.99322.4117
N102.81432.87023.86402.85253.16772.31431.37120.99180.99322.2491
O113.56644.06354.27523.86162.37652.24141.19543.09292.41172.2491

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 117.549 C1 N6 C7 125.343
H2 C1 H3 107.029 H2 C1 H4 108.546
H2 C1 N6 111.623 H3 C1 H4 108.353
H3 C1 N6 108.353 H4 C1 N6 112.731
H5 N6 C7 111.925 N6 C7 N10 115.600
N6 C7 O11 122.150 C7 N10 H8 119.282
C7 N10 H9 113.110 H8 N10 H9 115.286
N10 C7 O11 122.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.299      
2 H 0.138      
3 H 0.160      
4 H 0.152      
5 H 0.299      
6 N -0.491      
7 C 0.627      
8 H 0.296      
9 H 0.305      
10 N -0.666      
11 O -0.520      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.493 2.140 -0.580 4.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.178 5.415 -0.911
y 5.415 -26.287 -1.885
z -0.911 -1.885 -31.166
Traceless
 xyz
x -2.452 5.415 -0.911
y 5.415 4.886 -1.885
z -0.911 -1.885 -2.433
Polar
3z2-r2-4.867
x2-y2-4.892
xy5.415
xz-0.911
yz-1.885


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.446 -0.124 0.105
y -0.124 5.609 -0.065
z 0.105 -0.065 3.803


<r2> (average value of r2) Å2
<r2> 116.950
(<r2>)1/2 10.814