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

using model chemistry: CID/6-31G*

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 CID/6-31G*
 hartrees
Energy at 0K-244.385427
Energy at 298.15K 
HF Energy-243.819348
Nuclear repulsion energy124.206541
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 CID/6-31G*
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' 3912 3614 106.00      
2 A' 3899 3602 83.78      
3 A' 3766 3479 79.09      
4 A' 1965 1815 592.06      
5 A' 1709 1579 177.71      
6 A' 1538 1421 145.96      
7 A' 1315 1214 222.26      
8 A' 1146 1059 32.33      
9 A' 1028 950 27.77      
10 A' 615 568 44.66      
11 A' 511 472 6.56      
12 A" 823 760 58.24      
13 A" 619 572 77.79      
14 A" 517 478 71.36      
15 A" 229i 211i 321.22      

Unscaled Zero Point Vibrational Energy (zpe) 11567.2 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 10684.7 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 CID/6-31G*
ABC
0.39139 0.36602 0.18914

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.128 0.000
O2 -0.064 1.333 0.000
N3 1.132 -0.605 0.000
O4 -1.085 -0.673 0.000
H5 2.010 -0.125 0.000
H6 1.103 -1.605 0.000
H7 -1.849 -0.084 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20651.34861.34912.02632.05401.8610
O21.20652.27682.25152.53543.16072.2794
N31.34862.27682.21871.00031.00063.0263
O41.34912.25152.21873.14382.37820.9645
H52.02632.53541.00033.14381.73543.8595
H62.05403.16071.00062.37821.73543.3205
H71.86102.27943.02630.96453.85953.3205

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 118.479 C1 N3 H6 121.226
C1 O4 H7 105.903 O2 C1 N3 125.922
O2 C1 O4 123.425 N3 C1 O4 110.652
H5 N3 H6 120.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-244.385538
Energy at 298.15K-244.390419
HF Energy-243.819341
Nuclear repulsion energy124.151725
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 CID/6-31G*
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 3911 3612 106.04      
2 A 3877 3581 72.90      
3 A 3750 3464 67.19      
4 A 1967 1817 569.46      
5 A 1717 1586 157.11      
6 A 1537 1419 153.21      
7 A 1318 1217 199.00      
8 A 1158 1070 54.16      
9 A 1029 950 26.92      
10 A 824 761 71.86      
11 A 619 572 67.60      
12 A 607 561 78.23      
13 A 526 486 34.24      
14 A 496 458 21.81      
15 A 320 296 332.16      

Unscaled Zero Point Vibrational Energy (zpe) 11826.9 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 10924.5 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 CID/6-31G*
ABC
0.39143 0.36499 0.18914

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.121 -0.002
O2 -0.471 1.247 0.006
N3 1.268 -0.226 -0.047
O4 -0.825 -0.975 0.002
H5 1.935 0.501 0.122
H6 1.533 -1.173 0.149
H7 -1.734 -0.652 0.005

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20571.35411.34862.01512.04221.8626
O21.20572.28022.25042.52183.14522.2814
N31.35412.28022.22341.00171.00203.0326
O41.34862.25042.22343.13252.37070.9646
H52.01512.52181.00173.13251.72183.8482
H62.04223.14521.00202.37071.72183.3112
H71.86262.28143.03260.96463.84823.3112

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 116.805 C1 N3 H6 119.427
C1 O4 H7 106.075 O2 C1 N3 125.839
O2 C1 O4 123.436 N3 C1 O4 110.709
H5 N3 H6 118.484
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability