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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes C2V 1A1

Conformer 1 (C2)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-225.108771
Energy at 298.15K 
HF Energy-224.878628
Nuclear repulsion energy123.389246
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 B2PLYP=FULLultrafine/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3776 3634 58.02      
2 A1 3634 3497 7.00      
3 A1 1758 1692 489.72      
4 A1 1625 1564 1.11      
5 A1 1139 1096 1.65      
6 A1 970 934 10.92      
7 A1 475 457 2.90      
8 A2 377 363 0.00      
9 A2 353i 340i 0.00      
10 B1 765 736 3.10      
11 B1 569 547 9.55      
12 B1 251i 242i 425.51      
13 B2 3774 3631 44.58      
14 B2 3626 3490 73.75      
15 B2 1626 1565 263.72      
16 B2 1422 1369 217.50      
17 B2 989 951 16.06      
18 B2 559 538 13.80      

Unscaled Zero Point Vibrational Energy (zpe) 13239.3 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 12740.2 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
0.37260 0.34441 0.17898

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

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 1.368
N3 0.000 1.162 -0.599
N4 0.000 -1.162 -0.599
H5 0.000 2.030 -0.089
H6 0.000 1.183 -1.605
H7 0.000 -2.030 -0.089
H8 0.000 -1.183 -1.605

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.22871.37691.37692.04232.10802.04232.1080
O21.22872.28482.28482.49823.20002.49823.2000
N31.37692.28482.32421.00651.00623.23222.5521
N41.37692.28482.32423.23222.55211.00651.0062
H52.04232.49821.00653.23221.73654.05903.5528
H62.10803.20001.00622.55211.73653.55282.3667
H72.04232.49823.23221.00654.05903.55281.7365
H82.10803.20002.55211.00623.55282.36671.7365

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 117.090 C1 N3 H6 123.648
C1 N4 H7 117.090 C1 N4 H8 123.648
O2 C1 N3 122.436 O2 C1 N4 122.436
N3 C1 N4 115.128 H5 N3 H6 119.262
H7 N4 H8 119.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability