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

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
1 2 no C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-244.185346
Energy at 298.15K-244.190153
HF Energy-243.750236
Nuclear repulsion energy119.714771
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 MP2/LANL2DZ
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' 3791 3651 70.40      
2 A' 3669 3534 59.88      
3 A' 3632 3498 84.31      
4 A' 1739 1675 530.08      
5 A' 1667 1606 67.68      
6 A' 1399 1347 162.11      
7 A' 1208 1163 162.54      
8 A' 1082 1043 90.94      
9 A' 872 839 96.14      
10 A' 535 516 29.38      
11 A' 466 449 8.69      
12 A" 714 688 73.75      
13 A" 579 557 102.41      
14 A" 501 482 501.41      
15 A" 455 438 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 11154.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 10743.1 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 MP2/LANL2DZ
ABC
0.35464 0.34631 0.17521

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.144 0.000
O2 -0.219 1.384 0.000
N3 1.226 -0.490 0.000
O4 -1.032 -0.835 0.000
H5 2.070 0.070 0.000
H6 1.274 -1.502 0.000
H7 -1.913 -0.394 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.25871.37991.42262.07102.08141.9873
O21.25872.36612.36292.63943.24892.4551
N31.37992.36612.28371.01261.01293.1402
O41.42262.36292.28373.23082.40030.9856
H52.07102.63941.01263.23081.76124.0096
H62.08143.24891.01292.40031.76123.3743
H71.98732.45513.14020.98564.00963.3743

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 119.106 C1 N3 H6 120.097
C1 O4 H7 109.886 O2 C1 N3 127.392
O2 C1 O4 123.468 N3 C1 O4 109.140
H5 N3 H6 120.797
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-244.185346
Energy at 298.15K-244.190150
HF Energy-243.750213
Nuclear repulsion energy119.706826
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 MP2/LANL2DZ
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 3791 3651 70.34      
2 A 3670 3535 59.75      
3 A 3632 3498 84.21      
4 A 1741 1677 531.64      
5 A 1668 1606 66.61      
6 A 1398 1346 161.58      
7 A 1207 1163 161.30      
8 A 1082 1042 91.06      
9 A 870 837 97.92      
10 A 714 687 73.25      
11 A 578 557 101.51      
12 A 535 515 29.22      
13 A 501 483 501.87      
14 A 467 449 8.67      
15 A 454 437 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 11153.1 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 10741.5 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 MP2/LANL2DZ
ABC
0.35444 0.34637 0.17518

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 0.143 0.000
O2 0.469 1.320 -0.000
N3 -1.294 -0.257 0.000
O4 0.861 -1.010 -0.000
H5 -2.022 0.447 0.000
H6 -1.527 -1.243 -0.001
H7 1.809 -0.739 0.001

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.25811.37991.42372.07132.08141.9884
O21.25812.36592.36342.64023.24862.4564
N31.37992.36592.28371.01271.01293.1404
O41.42372.36342.28373.23122.39970.9856
H52.07132.64021.01273.23121.76094.0105
H62.08143.24861.01292.39971.76093.3737
H71.98842.45643.14040.98564.01053.3737

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 119.134 C1 N3 H6 120.104
C1 O4 H7 109.908 O2 C1 N3 127.438
O2 C1 O4 123.479 N3 C1 O4 109.082
H5 N3 H6 120.761
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability