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

using model chemistry: CCD/6-311G**

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 CCD/6-311G**
 hartrees
Energy at 0K-244.605100
Energy at 298.15K 
HF Energy-243.895700
Nuclear repulsion energy123.974711
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 CCD/6-311G**
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' 3926 3749 84.61      
2 A' 3840 3667 68.82      
3 A' 3704 3538 64.77      
4 A' 1919 1833 562.66      
5 A' 1655 1581 150.52      
6 A' 1481 1414 127.74      
7 A' 1284 1226 235.68      
8 A' 1107 1057 33.10      
9 A' 992 947 34.12      
10 A' 607 579 39.21      
11 A' 501 478 4.64      
12 A" 803 767 29.91      
13 A" 587 561 52.85      
14 A" 465 444 82.31      
15 A" 379i 362i 248.50      

Unscaled Zero Point Vibrational Energy (zpe) 11245.1 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 10740.2 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 CCD/6-311G**
ABC
0.38973 0.36417 0.18826

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.133 0.000
O2 -0.047 1.335 0.000
N3 1.128 -0.621 0.000
O4 -1.097 -0.662 0.000
H5 2.014 -0.153 0.000
H6 1.080 -1.622 0.000
H7 -1.844 -0.058 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20301.35731.35492.03452.06091.8535
O21.20302.28202.25642.54193.16452.2739
N31.35732.28202.22611.00201.00213.0249
O41.35492.25642.22613.15292.37970.9599
H52.03452.54191.00203.15291.74113.8591
H62.06093.16451.00212.37971.74113.3157
H71.85352.27393.02490.95993.85913.3157

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 118.381 C1 N3 H6 120.989
C1 O4 H7 105.117 O2 C1 N3 125.973
O2 C1 O4 123.701 N3 C1 O4 110.326
H5 N3 H6 120.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-244.605730
Energy at 298.15K-244.610705
HF Energy-243.895419
Nuclear repulsion energy123.888620
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 CCD/6-311G**
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 3924 3748 84.59      
2 A 3789 3619 47.14      
3 A 3667 3503 43.49      
4 A 1924 1837 517.98      
5 A 1664 1589 122.48      
6 A 1479 1412 131.41      
7 A 1293 1235 183.54      
8 A 1132 1081 81.26      
9 A 993 948 31.07      
10 A 808 771 59.92      
11 A 610 583 55.06      
12 A 570 544 80.33      
13 A 512 489 26.39      
14 A 489 467 143.72      
15 A 446 426 151.38      

Unscaled Zero Point Vibrational Energy (zpe) 11648.3 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 11125.3 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 CCD/6-311G**
ABC
0.38957 0.36260 0.18836

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.043 0.126 -0.003
O2 -0.470 1.249 0.008
N3 1.276 -0.230 -0.069
O4 -0.827 -0.977 0.003
H5 1.922 0.499 0.180
H6 1.514 -1.164 0.217
H7 -1.729 -0.648 0.005

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20151.36851.35322.00922.03411.8548
O21.20152.28982.25452.51313.13092.2766
N31.36852.28982.23371.00521.00543.0353
O41.35322.25452.23373.12582.35840.9600
H52.00922.51311.00523.12581.71303.8313
H62.03413.13091.00542.35841.71303.2906
H71.85482.27663.03530.96003.83133.2906

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 114.789 C1 N3 H6 117.107
C1 O4 H7 105.342 O2 C1 N3 125.873
O2 C1 O4 123.788 N3 C1 O4 110.305
H5 N3 H6 116.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability