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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: CID/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
1 2 no CS 1A'
1 3 no C2V 1A1

Conformer 1 (C2)

Jump to S1C2 S1C3
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-224.273607
Energy at 298.15K-224.279526
HF Energy-223.888243
Nuclear repulsion energy122.849087
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 CID/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 3856 3606 52.83      
2 A 3725 3483 11.44      
3 A 1804 1687 421.05      
4 A 1744 1631 55.19      
5 A 1207 1129 5.96      
6 A 1005 940 7.81      
7 A 510 477 1.13      
8 A 494 462 8.33      
9 A 177 166 34.22      
10 B 3853 3604 33.71      
11 B 3716 3475 73.00      
12 B 1741 1628 225.42      
13 B 1521 1422 312.70      
14 B 1084 1014 13.59      
15 B 771 721 157.94      
16 B 583 545 145.07      
17 B 579 542 82.72      
18 B 457 427 585.03      

Unscaled Zero Point Vibrational Energy (zpe) 14413.5 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 13479.5 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 CID/6-31G
ABC
0.36657 0.34291 0.17739

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.133
O2 0.000 0.000 1.381
N3 0.000 1.164 -0.605
N4 0.000 -1.164 -0.605
H5 0.015 2.028 -0.096
H6 0.178 1.187 -1.591
H7 -0.015 -2.028 -0.096
H8 -0.178 -1.187 -1.591

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.24811.37871.37872.04092.10122.04092.1012
O21.24812.30262.30262.50913.20582.50913.2058
N31.37872.30262.32861.00261.00223.23262.5560
N41.37872.30262.32863.23262.55601.00261.0022
H52.04092.50911.00263.23261.72314.05593.5510
H62.10123.20581.00222.55601.72313.55102.4008
H72.04092.50913.23261.00264.05593.55101.7231
H82.10123.20582.55601.00223.55102.40081.7231

picture of Urea state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 117.089 C1 N3 H6 123.109
C1 N4 H7 117.089 C1 N4 H8 123.109
O2 C1 N3 122.385 O2 C1 N4 122.385
N3 C1 N4 115.231 H5 N3 H6 118.518
H7 N4 H8 118.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-224.273573
Energy at 298.15K 
HF Energy-223.888654
Nuclear repulsion energy122.864091
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 CID/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' 3861 3611 54.48      
2 A' 3729 3488 12.35      
3 A' 1801 1684 423.04      
4 A' 1743 1630 64.07      
5 A' 1204 1126 5.88      
6 A' 1007 942 7.81      
7 A' 767 717 133.22      
8 A' 581 543 143.98      
9 A' 499 466 2.81      
10 A' 436 408 718.18      
11 A" 3858 3608 34.84      
12 A" 3720 3479 74.69      
13 A" 1739 1626 229.65      
14 A" 1522 1424 317.19      
15 A" 1074 1004 11.42      
16 A" 580 542 16.92      
17 A" 485 453 0.00      
18 A" 128i 120i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14238.8 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 13316.1 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 CID/6-31G
ABC
0.36697 0.34298 0.17729

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 0.000 1.381 0.000
N3 0.000 -0.603 1.165
N4 0.000 -0.603 -1.165
H5 -0.001 -0.097 2.030
H6 0.001 -1.604 1.192
H7 -0.001 -0.097 -2.030
H8 0.001 -1.604 -1.192

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.24901.37741.37742.04242.10632.04242.1063
O21.24902.30102.30102.51073.21492.51073.2149
N31.37742.30102.32921.00221.00183.23402.5602
N41.37742.30102.32923.23402.56021.00221.0018
H52.04242.51071.00223.23401.72504.05903.5565
H62.10633.21491.00182.56021.72503.55652.3831
H72.04242.51073.23401.00224.05903.55651.7250
H82.10633.21492.56021.00183.55652.38311.7250

picture of Urea state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 117.380 C1 N3 H6 123.815
C1 N4 H7 117.380 C1 N4 H8 123.815
O2 C1 N3 122.273 O2 C1 N4 122.273
N3 C1 N4 115.454 H5 N3 H6 118.805
H7 N4 H8 118.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-224.273573
Energy at 298.15K 
HF Energy-223.888656
Nuclear repulsion energy122.863046
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 CID/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 A1 3861 3611 54.47      
2 A1 3729 3488 12.32      
3 A1 1801 1684 426.80      
4 A1 1744 1631 60.49      
5 A1 1204 1126 5.79      
6 A1 1007 942 7.88      
7 A1 499 466 2.81      
8 A2 484 453 0.00      
9 A2 130i 121i 0.00      
10 B1 767 717 133.01      
11 B1 581 543 142.11      
12 B1 435 407 720.42      
13 B2 3858 3608 34.90      
14 B2 3720 3479 74.63      
15 B2 1739 1626 229.15      
16 B2 1522 1423 317.37      
17 B2 1074 1004 11.52      
18 B2 580 542 16.93      

Unscaled Zero Point Vibrational Energy (zpe) 14237.3 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 13314.7 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 CID/6-31G
ABC
0.36703 0.34291 0.17728

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.133
O2 0.000 0.000 1.381
N3 0.000 1.165 -0.603
N4 0.000 -1.165 -0.603
H5 0.000 2.030 -0.097
H6 0.000 1.191 -1.604
H7 0.000 -2.030 -0.097
H8 0.000 -1.191 -1.604

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.24871.37761.37762.04262.10632.04262.1063
O21.24872.30092.30092.51083.21462.51083.2146
N31.37762.30092.32961.00221.00183.23442.5601
N41.37762.30092.32963.23442.56011.00221.0018
H52.04262.51081.00223.23441.72514.05943.5564
H62.10633.21461.00182.56011.72513.55642.3826
H72.04262.51083.23441.00224.05943.55641.7251
H82.10633.21462.56011.00183.55642.38261.7251

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 117.385 C1 N3 H6 123.789
C1 N4 H7 117.385 C1 N4 H8 123.789
O2 C1 N3 122.273 O2 C1 N4 122.273
N3 C1 N4 115.454 H5 N3 H6 118.827
H7 N4 H8 118.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability