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All results from a given calculation for NH2COOH (Carbamic acid)

using model chemistry: CCD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 1A'
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-244.575005
Energy at 298.15K 
HF Energy-243.882497
Nuclear repulsion energy123.986118
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 CCD/6-311G*
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' 3877 3703 62.38      
2 A' 3835 3663 58.12      
3 A' 3702 3536 59.04      
4 A' 1921 1835 587.74      
5 A' 1695 1619 140.83      
6 A' 1494 1427 134.08      
7 A' 1298 1240 250.50      
8 A' 1122 1072 37.79      
9 A' 995 950 32.21      
10 A' 608 581 40.60      
11 A' 503 480 6.00      
12 A" 811 775 37.18      
13 A" 609 582 76.78      
14 A" 493 471 81.27      
15 A" 350i 334i 292.90      

Unscaled Zero Point Vibrational Energy (zpe) 11306.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 10798.8 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 CCD/6-311G*
ABC
0.39005 0.36412 0.18832

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 -0.060 1.335 0.000
N3 1.134 -0.610 0.000
O4 -1.090 -0.671 0.000
H5 2.016 -0.136 0.000
H6 1.099 -1.611 0.000
H7 -1.852 -0.087 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20411.35531.35392.03372.06091.8653
O21.20412.28222.25482.54433.16582.2877
N31.35532.28222.22441.00141.00153.0316
O41.35392.25482.22443.15142.38210.9607
H52.03372.54431.00143.15141.73673.8685
H62.06093.16581.00152.38211.73673.3217
H71.86532.28773.03160.96073.86853.3217

picture of Carbamic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.530 C1 N3 H6 121.228
C1 O4 H7 106.140 O2 C1 N3 126.078
O2 C1 O4 123.540 N3 C1 O4 110.382
H5 N3 H6 120.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-244.575470
Energy at 298.15K-244.580456
HF Energy-243.882316
Nuclear repulsion energy123.904633
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 CCD/6-311G*
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 3876 3702 62.64      
2 A 3793 3623 41.99      
3 A 3671 3506 41.58      
4 A 1925 1839 545.85      
5 A 1707 1630 120.46      
6 A 1491 1424 134.62      
7 A 1306 1248 198.96      
8 A 1145 1093 84.32      
9 A 995 950 30.36      
10 A 815 778 65.52      
11 A 613 585 64.73      
12 A 594 567 91.34      
13 A 519 496 22.94      
14 A 480 459 56.01      
15 A 448 428 284.89      

Unscaled Zero Point Vibrational Energy (zpe) 11688.4 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 11163.6 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 CCD/6-311G*
ABC
0.38991 0.36267 0.18838

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.042 0.126 -0.003
O2 -0.470 1.249 0.008
N3 1.275 -0.231 -0.063
O4 -0.828 -0.975 0.003
H5 1.928 0.496 0.167
H6 1.519 -1.169 0.198
H7 -1.735 -0.660 0.004

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20261.36501.35292.01152.03771.8670
O21.20262.28892.25322.51863.13692.2904
N31.36502.28892.23171.00401.00433.0413
O41.35292.25322.23173.12852.36310.9607
H52.01152.51861.00403.12851.71493.8450
H62.03773.13691.00432.36311.71493.2998
H71.86702.29043.04130.96073.84503.2998

picture of Carbamic acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 115.373 C1 N3 H6 117.831
C1 O4 H7 106.369 O2 C1 N3 125.990
O2 C1 O4 123.592 N3 C1 O4 110.390
H5 N3 H6 117.266
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability