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

using model chemistry: TPSSh/TZVP

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 TPSSh/TZVP
 hartrees
Energy at 0K-245.235859
Energy at 298.15K 
HF Energy-245.235859
Nuclear repulsion energy123.275628
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 TPSSh/TZVP
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' 3769 3632 76.67      
2 A' 3748 3612 65.17      
3 A' 3612 3481 53.30      
4 A' 1820 1753 553.60      
5 A' 1624 1565 105.60      
6 A' 1416 1364 153.09      
7 A' 1222 1178 195.90      
8 A' 1072 1033 47.95      
9 A' 940 906 56.25      
10 A' 575 554 30.71      
11 A' 479 462 7.56      
12 A" 762 734 20.14      
13 A" 589 568 60.47      
14 A" 465 448 78.76      
15 A" 124i 119i 237.08      

Unscaled Zero Point Vibrational Energy (zpe) 10984.1 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 10585.3 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 TPSSh/TZVP
ABC
0.38339 0.36209 0.18622

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 -0.085 1.342 0.000
N3 1.149 -0.586 0.000
O4 -1.083 -0.703 0.000
H5 2.024 -0.092 0.000
H6 1.138 -1.592 0.000
H7 -1.860 -0.123 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21311.35531.36762.03602.06561.8771
O21.21312.28972.27572.55033.17882.3016
N31.35532.28972.23511.00471.00563.0441
O41.36762.27572.23513.16622.39200.9689
H52.03602.55031.00473.16621.74203.8834
H62.06563.17881.00562.39201.74203.3377
H71.87712.30163.04410.96893.88343.3377

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 118.499 C1 N3 H6 121.373
C1 O4 H7 105.636 O2 C1 N3 126.043
O2 C1 O4 123.613 N3 C1 O4 110.344
H5 N3 H6 120.129
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.284      
2 O -0.370      
3 N -0.404      
4 O -0.325      
5 H 0.261      
6 H 0.256      
7 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.818 -2.556 0.000 2.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.598 -0.346 0.000
y -0.346 4.625 0.000
z 0.000 0.000 2.514


<r2> (average value of r2) Å2
<r2> 64.714
(<r2>)1/2 8.045

Conformer 2 (C1)

Jump to S1C1
Energy calculated at TPSSh/TZVP
 hartrees
Energy at 0K-245.235869
Energy at 298.15K-245.240469
HF Energy-245.235869
Nuclear repulsion energy123.259955
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 TPSSh/TZVP
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 3771 3634 76.39      
2 A 3736 3601 60.35      
3 A 3604 3473 49.45      
4 A 1820 1754 544.65      
5 A 1626 1567 102.05      
6 A 1416 1364 151.60      
7 A 1225 1180 184.99      
8 A 1076 1037 59.39      
9 A 941 907 55.23      
10 A 762 735 23.53      
11 A 584 563 65.88      
12 A 574 553 33.93      
13 A 483 465 22.11      
14 A 459 442 56.79      
15 A 209 201 244.02      

Unscaled Zero Point Vibrational Energy (zpe) 11142.3 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 10737.8 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 TPSSh/TZVP
ABC
0.38338 0.36178 0.18625

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.127 -0.000
O2 -0.456 1.265 0.004
N3 1.269 -0.243 -0.032
O4 -0.844 -0.977 0.002
H5 1.961 0.477 0.086
H6 1.531 -1.205 0.097
H7 -1.751 -0.638 0.002

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21281.35761.36712.03042.06031.8771
O21.21282.29122.27522.54383.17212.3019
N31.35762.29122.23671.00541.00633.0461
O41.36712.27522.23673.16022.38800.9690
H52.03042.54381.00543.16021.73623.8771
H62.06033.17211.00632.38801.73623.3329
H71.87712.30193.04610.96903.87713.3329

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 117.695 C1 N3 H6 120.561
C1 O4 H7 105.672 O2 C1 N3 126.003
O2 C1 O4 123.633 N3 C1 O4 110.352
H5 N3 H6 119.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.279      
2 O -0.368      
3 N -0.395      
4 O -0.325      
5 H 0.257      
6 H 0.253      
7 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.237 -2.078 0.914 2.585
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.788 -0.292 -0.005
y -0.292 4.456 0.006
z -0.005 0.006 2.528


<r2> (average value of r2) Å2
<r2> 64.724
(<r2>)1/2 8.045