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

using model chemistry: CCSD/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 CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-244.585477
Energy at 298.15K 
HF Energy-243.867653
Nuclear repulsion energy122.927365
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 CCSD/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' 3830 3690 87.32      
2 A' 3798 3659 68.69      
3 A' 3652 3518 62.01      
4 A' 1834 1767 589.47      
5 A' 1635 1575 113.42      
6 A' 1448 1395 130.29      
7 A' 1259 1212 209.00      
8 A' 1090 1050 34.62      
9 A' 962 927 41.51      
10 A' 587 566 34.18      
11 A' 490 472 5.77      
12 A" 787 758 21.53      
13 A" 587 566 57.82      
14 A" 486 468 63.09      
15 A" 231i 222i 218.12      

Unscaled Zero Point Vibrational Energy (zpe) 11106.7 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 10700.2 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 CCSD/aug-cc-pVDZ
ABC
0.38171 0.35942 0.18512

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
O2 -0.062 1.348 0.000
N3 1.143 -0.611 0.000
O4 -1.098 -0.683 0.000
H5 2.028 -0.127 0.000
H6 1.107 -1.618 0.000
H7 -1.860 -0.087 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21851.36301.36712.04402.07001.8732
O21.21852.29972.28042.55773.18792.3012
N31.36302.29972.24271.00771.00803.0491
O41.36712.28042.24273.17482.39510.9676
H52.04402.55771.00773.17481.75213.8883
H62.07003.18791.00802.39511.75213.3390
H71.87322.30123.04910.96763.88833.3390

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 118.361 C1 N3 H6 120.902
C1 O4 H7 105.427 O2 C1 N3 125.876
O2 C1 O4 123.657 N3 C1 O4 110.467
H5 N3 H6 120.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-244.585638
Energy at 298.15K-244.590436
HF Energy-243.867550
Nuclear repulsion energy122.861963
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 CCSD/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 3828 3688 87.20      
2 A 3761 3624 57.23      
3 A 3626 3493 47.91      
4 A 1837 1770 556.82      
5 A 1636 1576 101.29      
6 A 1445 1392 128.54      
7 A 1263 1216 182.01      
8 A 1105 1065 62.78      
9 A 963 927 39.37      
10 A 785 756 31.09      
11 A 590 569 46.68      
12 A 571 550 72.74      
13 A 499 481 20.08      
14 A 468 451 24.70      
15 A 323 311 241.74      

Unscaled Zero Point Vibrational Energy (zpe) 11349.9 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 10934.5 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 CCSD/aug-cc-pVDZ
ABC
0.38174 0.35820 0.18515

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.125 -0.002
O2 -0.466 1.265 0.007
N3 1.280 -0.238 -0.055
O4 -0.841 -0.982 0.002
H5 1.949 0.492 0.144
H6 1.528 -1.190 0.175
H7 -1.748 -0.647 0.006

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21741.37031.36622.02842.05421.8741
O21.21742.30472.27882.53963.16742.3024
N31.37032.30472.24821.01011.01043.0563
O41.36622.27882.24823.15862.38400.9677
H52.02842.53961.01013.15861.73413.8713
H62.05423.16741.01042.38401.73413.3253
H71.87412.30243.05630.96773.87133.3253

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 116.064 C1 N3 H6 118.494
C1 O4 H7 105.568 O2 C1 N3 125.806
O2 C1 O4 123.682 N3 C1 O4 110.486
H5 N3 H6 118.237
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability