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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-244.940237
Energy at 298.15K 
HF Energy-244.718914
Nuclear repulsion energy123.206910
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 B2PLYP=FULL/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' 3794 3636 93.49      
2 A' 3792 3634 61.08      
3 A' 3642 3490 57.62      
4 A' 1864 1787 464.74      
5 A' 1602 1536 147.39      
6 A' 1447 1387 111.30      
7 A' 1244 1193 198.90      
8 A' 1078 1033 32.09      
9 A' 965 925 39.80      
10 A' 585 561 34.48      
11 A' 489 468 5.50      
12 A" 784 752 27.61      
13 A" 596 572 57.91      
14 A" 485 465 60.59      
15 A" 295i 283i 217.15      

Unscaled Zero Point Vibrational Energy (zpe) 11035.9 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 10577.9 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 B2PLYP=FULL/cc-pVDZ
ABC
0.38361 0.36134 0.18607

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
O2 -0.061 1.345 0.000
N3 1.139 -0.612 0.000
O4 -1.096 -0.681 0.000
H5 2.023 -0.128 0.000
H6 1.104 -1.619 0.000
H7 -1.849 -0.070 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21531.35961.36382.03992.06941.8600
O21.21532.29492.27502.55213.18482.2805
N31.35962.29492.23551.00801.00833.0366
O41.36382.27502.23553.16752.39110.9701
H52.03992.55211.00803.16751.75183.8729
H62.06943.18481.00832.39111.75183.3347
H71.86002.28053.03660.97013.87293.3347

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 118.234 C1 N3 H6 121.123
C1 O4 H7 104.413 O2 C1 N3 125.973
O2 C1 O4 123.691 N3 C1 O4 110.335
H5 N3 H6 120.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-244.940608
Energy at 298.15K-244.945482
HF Energy-244.719037
Nuclear repulsion energy123.139697
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 B2PLYP=FULL/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 3792 3635 84.73      
2 A 3745 3590 52.05      
3 A 3611 3461 40.90      
4 A 1865 1787 436.82      
5 A 1613 1546 116.17      
6 A 1447 1387 123.63      
7 A 1251 1199 160.73      
8 A 1099 1053 74.20      
9 A 967 927 35.48      
10 A 784 751 44.12      
11 A 591 566 58.51      
12 A 577 553 64.85      
13 A 504 483 16.53      
14 A 463 443 17.82      
15 A 400 383 248.55      

Unscaled Zero Point Vibrational Energy (zpe) 11353.1 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 10882.0 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 B2PLYP=FULL/cc-pVDZ
ABC
0.38346 0.36010 0.18622

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.042 0.124 -0.003
O2 -0.480 1.256 0.008
N3 1.280 -0.224 -0.066
O4 -0.825 -0.991 0.003
H5 1.930 0.513 0.172
H6 1.532 -1.164 0.210
H7 -1.733 -0.651 0.008

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21411.36891.36242.01742.04561.8608
O21.21412.30182.27332.52763.15472.2821
N31.36892.30182.24131.01111.01163.0448
O41.36242.27332.24133.14302.37250.9702
H52.01742.52761.01113.14301.72463.8475
H62.04563.15471.01162.37251.72463.3121
H71.86082.28213.04480.97023.84753.3121

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 115.089 C1 N3 H6 117.695
C1 O4 H7 104.573 O2 C1 N3 125.930
O2 C1 O4 123.749 N3 C1 O4 110.290
H5 N3 H6 116.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability