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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: PM6

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (C2)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at PM6
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 2829 3005 215.22      
2 A 2809 2984 65.00      
3 A 1794 1906 643.58      
4 A 1601 1701 1.27      
5 A 1183 1257 3.26      
6 A 1056 1122 3.99      
7 A 584 621 73.17      
8 A 427 454 0.29      
9 A 347 368 78.50      
10 B 2821 2997 75.77      
11 B 2807 2982 280.35      
12 B 1599 1698 103.94      
13 B 1443 1533 446.03      
14 B 1102 1171 10.71      
15 B 694 737 514.84      
16 B 560 595 395.95      
17 B 485 515 53.04      
18 B 337 358 24.28      

Unscaled Zero Point Vibrational Energy (zpe) 12238.9 cm-1
Scaled (by 1.0624) Zero Point Vibrational Energy (zpe) 13002.6 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 PM6
ABC
0.37340 0.32321 0.17435

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM6

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.142
O2 0.000 0.000 1.361
N3 0.000 1.201 -0.607
N4 0.000 -1.201 -0.607
H5 0.211 2.042 -0.078
H6 0.372 1.213 -1.544
H7 -0.211 -2.042 -0.078
H8 -0.372 -1.213 -1.544

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.21981.41531.41532.06462.10992.06462.1099
O21.21982.30582.30582.50743.17042.50743.1704
N31.41532.30582.40261.01511.00843.29282.6167
N41.41532.30582.40263.29282.61671.01511.0084
H52.06462.50741.01513.29281.69124.10573.6172
H62.10993.17041.00842.61671.69123.61722.5382
H72.06462.50743.29281.01514.10573.61721.6912
H82.10993.17042.61671.00843.61722.53821.6912

picture of Urea state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 115.327 C1 N3 H6 120.098
C1 N4 H7 115.327 C1 N4 H8 120.098
O2 C1 N3 121.920 O2 C1 N4 121.920
N3 C1 N4 116.160 H5 N3 H6 113.396
H7 N4 H8 113.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at PM6
 hartrees
Energy at 0K 
Energy at 298.15K-0.076737
HF Energy-0.076737
Nuclear repulsion energy88.272128
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 PM6
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' 2852 3030 332.41      
2 A' 2822 2998 10.61      
3 A' 1788 1899 704.39      
4 A' 1604 1704 2.43      
5 A' 1164 1237 9.97      
6 A' 1057 1123 3.20      
7 A' 646 686 56.50      
8 A' 433 460 0.88      
9 A' 430 457 136.94      
10 A' 127 135 1029.35      
11 A" 2841 3018 5.83      
12 A" 2818 2993 379.13      
13 A" 1591 1690 153.04      
14 A" 1460 1551 553.80      
15 A" 1056 1122 2.39      
16 A" 491 522 28.26      
17 A" 367 390 0.00      
18 A" 412i 438i        

Unscaled Zero Point Vibrational Energy (zpe) 11566.5 cm-1
Scaled (by 1.0624) Zero Point Vibrational Energy (zpe) 12288.3 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 PM6
ABC
0.37631 0.32629 0.17476

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM6

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.139 0.000
O2 0.000 1.361 0.000
N3 0.000 -0.597 1.194
N4 0.000 -0.597 -1.194
H5 0.000 -0.092 2.067
H6 -0.000 -1.595 1.242
H7 0.000 -0.092 -2.067
H8 -0.000 -1.595 -1.242

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.22231.40261.40262.07952.13312.07952.1331
O21.22232.29332.29332.52633.20672.52633.2067
N31.40262.29332.38851.00800.99973.29982.6332
N41.40262.29332.38853.29982.63321.00800.9997
H52.07952.52631.00803.29981.71464.13343.6345
H62.13313.20670.99972.63321.71463.63452.4846
H72.07952.52633.29981.00804.13343.63451.7146
H82.13313.20672.63320.99973.63452.48461.7146

picture of Urea state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.314 C1 N3 H6 124.383
C1 N4 H7 118.314 C1 N4 H8 124.383
O2 C1 N3 121.628 O2 C1 N4 121.628
N3 C1 N4 116.743 H5 N3 H6 117.303
H7 N4 H8 117.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at PM6
 hartrees
Energy at 0K 
Energy at 298.15K-0.076737
HF Energy-0.076737
Nuclear repulsion energy88.271615
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 PM6
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 2852 3030 332.36      
2 A1 2822 2998 10.73      
3 A1 1787 1899 704.29      
4 A1 1604 1704 2.42      
5 A1 1164 1237 9.94      
6 A1 1057 1123 3.21      
7 A1 433 460 0.88      
8 A2 368 391 0.00      
9 A2 412i 438i 0.00      
10 B1 646 686 56.73      
11 B1 431 458 137.33      
12 B1 125 133 1028.85      
13 B2 2841 3018 5.50      
14 B2 2817 2993 379.54      
15 B2 1591 1690 152.98      
16 B2 1460 1551 553.75      
17 B2 1056 1122 2.40      
18 B2 491 522 28.25      

Unscaled Zero Point Vibrational Energy (zpe) 11566.1 cm-1
Scaled (by 1.0624) Zero Point Vibrational Energy (zpe) 12287.8 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 PM6
ABC
0.37632 0.32627 0.17476

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM6

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.139
O2 0.000 0.000 1.361
N3 0.000 1.194 -0.597
N4 0.000 -1.194 -0.597
H5 0.000 2.067 -0.091
H6 0.000 1.242 -1.595
H7 0.000 -2.067 -0.091
H8 0.000 -1.242 -1.595

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.22231.40261.40262.07952.13302.07952.1330
O21.22232.29332.29332.52623.20662.52623.2066
N31.40262.29332.38861.00810.99963.29992.6332
N41.40262.29332.38863.29992.63321.00810.9996
H52.07952.52621.00813.29991.71484.13343.6345
H62.13303.20660.99962.63321.71483.63452.4844
H72.07952.52623.29991.00814.13343.63451.7148
H82.13303.20662.63320.99963.63452.48441.7148

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.305 C1 N3 H6 124.370
C1 N4 H7 118.305 C1 N4 H8 124.370
O2 C1 N3 121.625 O2 C1 N4 121.625
N3 C1 N4 116.750 H5 N3 H6 117.325
H7 N4 H8 117.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability