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

using model chemistry: CCSD(T)=FULL/6-31G*

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(T)=FULL/6-31G*
 hartrees
Energy at 0K-244.504706
Energy at 298.15K 
HF Energy-243.816325
Nuclear repulsion energy122.976600
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(T)=FULL/6-31G*
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' 3773 3662        
2 A' 3728 3619        
3 A' 3639 3533        
4 A' 1885 1830        
5 A' 1648 1600        
6 A' 1478 1434        
7 A' 1265 1228        
8 A' 1101 1069        
9 A' 971 943        
10 A' 584 567        
11 A' 488 474        
12 A" 772 749        
13 A" 604 587        
14 A" 489 475        
15 A" 313i 304i        

Unscaled Zero Point Vibrational Energy (zpe) 11056.3 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 10732.4 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(T)=FULL/6-31G*
ABC
0.38120 0.36119 0.18546

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 -0.080 1.349 0.000
N3 1.146 -0.596 0.000
O4 -1.085 -0.699 0.000
H5 2.028 -0.106 0.000
H6 1.124 -1.605 0.000
H7 -1.858 -0.102 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21971.35811.36702.04152.06921.8724
O21.21972.29932.28192.56063.19012.2951
N31.35812.29932.23411.00861.00923.0445
O41.36702.28192.23413.16912.38820.9764
H52.04152.56061.00863.16911.75063.8854
H62.06923.19011.00922.38821.75063.3396
H71.87242.29513.04450.97643.88543.3396

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 118.476 C1 N3 H6 121.175
C1 O4 H7 104.843 O2 C1 N3 126.161
O2 C1 O4 123.705 N3 C1 O4 110.134
H5 N3 H6 120.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/6-31G*
 hartrees
Energy at 0K-244.505104
Energy at 298.15K-244.509980
HF Energy-243.816066
Nuclear repulsion energy122.885439
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(T)=FULL/6-31G*
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 3728 3618        
2 A 3725 3616        
3 A 3605 3499        
4 A 1885 1830        
5 A 1663 1614        
6 A 1476 1433        
7 A 1272 1235        
8 A 1121 1088        
9 A 973 944        
10 A 773 751        
11 A 594 577        
12 A 582 564        
13 A 505 490        
14 A 469 456        
15 A 416 404        

Unscaled Zero Point Vibrational Energy (zpe) 11392.7 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 11058.9 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 CCSD(T)=FULL/6-31G*
ABC
0.38116 0.35956 0.18550

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.041 0.125 -0.002
O2 -0.482 1.260 0.008
N3 1.281 -0.224 -0.064
O4 -0.824 -0.994 0.003
H5 1.934 0.513 0.167
H6 1.535 -1.166 0.204
H7 -1.741 -0.660 0.006

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21861.36831.36532.02002.04741.8727
O21.21862.30592.28012.53463.16172.2962
N31.36832.30592.24201.01161.01213.0543
O41.36532.28012.24203.14702.37360.9766
H52.02002.53461.01163.14701.72613.8615
H62.04743.16171.01212.37361.72613.3213
H71.87272.29623.05430.97663.86153.3213

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 115.336 C1 N3 H6 117.879
C1 O4 H7 104.977 O2 C1 N3 125.994
O2 C1 O4 123.770 N3 C1 O4 110.199
H5 N3 H6 117.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability