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

using model chemistry: MP4=FULL/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 MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.864672
Energy at 298.15K 
HF Energy-243.923949
Nuclear repulsion energy123.663313
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 MP4=FULL/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' 3822 3680        
2 A' 3803 3662        
3 A' 3668 3531        
4 A' 1842 1774        
5 A' 1634 1573        
6 A' 1444 1391        
7 A' 1234 1189        
8 A' 1077 1037        
9 A' 954 919        
10 A' 584 562        
11 A' 485 467        
12 A" 788 759        
13 A" 596 574        
14 A" 484 466        
15 A" 247i 238i        

Unscaled Zero Point Vibrational Energy (zpe) 11083.9 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 10672.7 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 MP4=FULL/cc-pVTZ
ABC
0.38558 0.36438 0.18734

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
O2 -0.075 1.341 0.000
N3 1.141 -0.596 0.000
O4 -1.084 -0.692 0.000
H5 2.014 -0.110 0.000
H6 1.115 -1.596 0.000
H7 -1.841 -0.094 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21201.35311.36132.02832.05531.8543
O21.21202.28722.26962.54333.16832.2749
N31.35312.28722.22720.99940.99973.0236
O41.36132.26962.22723.15232.37730.9644
H52.02832.54330.99943.15231.73673.8546
H62.05533.16830.99972.37731.73673.3150
H71.85432.27493.02360.96443.85463.3150

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 118.352 C1 N3 H6 121.017
C1 O4 H7 104.454 O2 C1 N3 126.073
O2 C1 O4 123.653 N3 C1 O4 110.274
H5 N3 H6 120.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.864857
Energy at 298.15K 
HF Energy-243.923842
Nuclear repulsion energy123.604614
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 MP4=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/cc-pVTZ
ABC
0.38548 0.36335 0.18741

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.125 -0.002
O2 -0.478 1.254 0.007
N3 1.274 -0.224 -0.055
O4 -0.823 -0.988 0.002
H5 1.930 0.505 0.146
H6 1.528 -1.166 0.174
H7 -1.726 -0.650 0.009

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21121.36031.36012.01222.03811.8552
O21.21122.29232.26822.52543.14702.2767
N31.36032.29232.23191.00161.00203.0304
O41.36012.26822.23193.13492.36340.9644
H52.01222.52541.00163.13491.71873.8367
H62.03813.14701.00202.36341.71873.2984
H71.85522.27673.03040.96443.83673.2984

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 116.021 C1 N3 H6 118.469
C1 O4 H7 104.614 O2 C1 N3 126.015
O2 C1 O4 123.701 N3 C1 O4 110.260
H5 N3 H6 118.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability