return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: QCISD/aug-cc-pVTZ

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 QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-244.787849
Energy at 298.15K 
HF Energy-243.929127
Nuclear repulsion energy123.897102
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 QCISD/aug-cc-pVTZ
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' 3847 3702 93.80      
2 A' 3807 3663 74.07      
3 A' 3668 3531 63.56      
4 A' 1846 1776 577.02      
5 A' 1642 1580 119.14      
6 A' 1459 1404 142.34      
7 A' 1256 1209 198.53      
8 A' 1095 1053 40.88      
9 A' 977 940 36.83      
10 A' 595 573 35.13      
11 A' 495 476 5.96      
12 A" 800 770 23.14      
13 A" 592 570 55.35      
14 A" 486 468 65.16      
15 A" 246i 237i 215.96      

Unscaled Zero Point Vibrational Energy (zpe) 11159.0 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 10739.4 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 QCISD/aug-cc-pVTZ
ABC
0.38874 0.36439 0.18808

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.129 0.000
O2 -0.057 1.336 0.000
N3 1.134 -0.610 0.000
O4 -1.092 -0.673 0.000
H5 2.012 -0.131 0.000
H6 1.097 -1.609 0.000
H7 -1.849 -0.077 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20891.35311.35472.02872.05511.8599
O21.20892.28172.25982.53693.16362.2814
N31.35312.28172.22681.00011.00043.0296
O41.35472.25982.22683.15102.38070.9630
H52.02872.53691.00013.15101.73873.8609
H62.05513.16361.00042.38071.73873.3200
H71.85992.28143.02960.96303.86093.3200

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 118.338 C1 N3 H6 120.942
C1 O4 H7 105.493 O2 C1 N3 125.798
O2 C1 O4 123.550 N3 C1 O4 110.652
H5 N3 H6 120.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-244.788003
Energy at 298.15K-244.792834
HF Energy-243.928994
Nuclear repulsion energy123.831490
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 QCISD/aug-cc-pVTZ
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 3847 3702 93.61      
2 A 3777 3635 63.68      
3 A 3648 3511 51.62      
4 A 1849 1779 551.36      
5 A 1651 1589 103.23      
6 A 1457 1402 145.04      
7 A 1261 1214 170.87      
8 A 1110 1068 69.16      
9 A 977 940 35.18      
10 A 800 770 32.08      
11 A 598 576 46.37      
12 A 578 556 66.55      
13 A 504 485 22.12      
14 A 470 453 28.65      
15 A 331 319 236.82      

Unscaled Zero Point Vibrational Energy (zpe) 11429.0 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 10999.3 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 QCISD/aug-cc-pVTZ
ABC
0.38865 0.36329 0.18809

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.123 -0.002
O2 -0.464 1.254 0.006
N3 1.271 -0.234 -0.052
O4 -0.834 -0.975 0.003
H5 1.937 0.491 0.137
H6 1.522 -1.181 0.161
H7 -1.737 -0.641 0.005

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20791.35951.35422.01542.04111.8613
O21.20792.28632.25882.52243.14582.2831
N31.35952.28632.23161.00211.00243.0361
O41.35422.25882.23163.13682.37000.9630
H52.01542.52241.00213.13681.72253.8466
H62.04113.14581.00242.37001.72253.3073
H71.86132.28313.03610.96303.84663.3073

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 116.354 C1 N3 H6 118.804
C1 O4 H7 105.638 O2 C1 N3 125.769
O2 C1 O4 123.567 N3 C1 O4 110.644
H5 N3 H6 118.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability