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

using model chemistry: CCD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-244.578588
Energy at 298.15K 
HF Energy-243.868159
Nuclear repulsion energy123.108829
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/aug-cc-pVDZ
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' 3851 3714 91.56      
2 A' 3809 3673 70.94      
3 A' 3663 3533 65.40      
4 A' 1854 1788 617.43      
5 A' 1641 1583 121.98      
6 A' 1455 1403 131.99      
7 A' 1265 1220 214.86      
8 A' 1096 1057 33.46      
9 A' 970 936 41.19      
10 A' 592 571 34.88      
11 A' 493 475 5.88      
12 A" 794 766 22.36      
13 A" 590 569 59.05      
14 A" 491 473 63.42      
15 A" 211i 204i 220.52      

Unscaled Zero Point Vibrational Energy (zpe) 11175.1 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 10778.4 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/aug-cc-pVDZ
ABC
0.38325 0.36014 0.18567

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
O2 -0.059 1.345 0.000
N3 1.141 -0.612 0.000
O4 -1.098 -0.679 0.000
H5 2.026 -0.131 0.000
H6 1.103 -1.619 0.000
H7 -1.860 -0.085 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21551.36191.36482.04302.06841.8723
O21.21552.29622.27562.55503.18362.2994
N31.36192.29622.24021.00721.00733.0470
O41.36482.27562.24023.17182.39290.9664
H52.04302.55501.00723.17181.75083.8862
H62.06843.18361.00732.39291.75083.3362
H71.87232.29943.04700.96643.88623.3362

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 118.394 C1 N3 H6 120.898
C1 O4 H7 105.588 O2 C1 N3 125.869
O2 C1 O4 123.646 N3 C1 O4 110.485
H5 N3 H6 120.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-244.578705
Energy at 298.15K-244.583489
HF Energy-243.868096
Nuclear repulsion energy123.053726
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/aug-cc-pVDZ
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 3849 3713 91.37      
2 A 3778 3644 60.89      
3 A 3641 3511 52.76      
4 A 1857 1791 587.54      
5 A 1642 1584 110.36      
6 A 1452 1401 131.26      
7 A 1268 1223 191.79      
8 A 1108 1069 57.02      
9 A 971 936 39.59      
10 A 792 764 30.35      
11 A 595 574 45.39      
12 A 575 555 72.78      
13 A 502 484 22.02      
14 A 473 457 26.34      
15 A 296 286 242.93      

Unscaled Zero Point Vibrational Energy (zpe) 11399.7 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 10995.1 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 CCD/aug-cc-pVDZ
ABC
0.38327 0.35911 0.18570

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.125 -0.002
O2 -0.464 1.263 0.006
N3 1.278 -0.238 -0.051
O4 -0.840 -0.980 0.002
H5 1.951 0.490 0.133
H6 1.528 -1.192 0.162
H7 -1.747 -0.646 0.006

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21461.36821.36402.02952.05501.8731
O21.21462.30032.27442.53933.16612.3005
N31.36822.30032.24491.00921.00943.0531
O41.36402.27442.24493.15792.38360.9665
H52.02952.53931.00923.15791.73533.8716
H62.05503.16611.00942.38361.73533.3247
H71.87312.30053.05310.96653.87163.3247

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 116.413 C1 N3 H6 118.836
C1 O4 H7 105.712 O2 C1 N3 125.805
O2 C1 O4 123.672 N3 C1 O4 110.500
H5 N3 H6 118.554
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability