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

using model chemistry: CCSD=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 CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-244.534310
Energy at 298.15K 
HF Energy-243.846646
Nuclear repulsion energy123.365805
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=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' 3851 3851 83.41      
2 A' 3824 3824 70.43      
3 A' 3676 3676 62.26      
4 A' 1905 1905 510.64      
5 A' 1629 1629 163.15      
6 A' 1478 1478 112.53      
7 A' 1274 1274 208.43      
8 A' 1095 1095 26.93      
9 A' 986 986 32.77      
10 A' 597 597 37.59      
11 A' 495 495 4.78      
12 A" 801 801 32.08      
13 A" 597 597 59.71      
14 A" 487 487 62.43      
15 A" 352i 352i 232.23      

Unscaled Zero Point Vibrational Energy (zpe) 11172.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11172.0 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 CCSD=FULL/cc-pVDZ
ABC
0.38516 0.36177 0.18655

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 -0.045 1.343 0.000
N3 1.131 -0.625 0.000
O4 -1.102 -0.666 0.000
H5 2.022 -0.154 0.000
H6 1.082 -1.633 0.000
H7 -1.847 -0.047 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21221.36111.36032.04252.07011.8553
O21.21222.29312.27012.55263.18242.2759
N31.36112.29312.23291.00861.00873.0330
O41.36032.27012.23293.16572.38800.9682
H52.04252.55261.00863.16571.75283.8704
H62.07013.18241.00872.38801.75283.3301
H71.85532.27593.03300.96823.87043.3301

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 118.311 C1 N3 H6 121.026
C1 O4 H7 104.384 O2 C1 N3 125.940
O2 C1 O4 123.786 N3 C1 O4 110.274
H5 N3 H6 120.663
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-244.535052
Energy at 298.15K-244.540012
HF Energy-243.846602
Nuclear repulsion energy123.250400
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=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 3849 3849 82.86      
2 A 3758 3758 45.22      
3 A 3630 3630 36.52      
4 A 1908 1908 463.95      
5 A 1641 1641 115.55      
6 A 1477 1477 128.91      
7 A 1282 1282 159.25      
8 A 1125 1125 79.02      
9 A 986 986 28.02      
10 A 803 803 60.59      
11 A 602 602 61.40      
12 A 575 575 83.20      
13 A 510 510 7.74      
14 A 491 491 151.61      
15 A 437 437 127.21      

Unscaled Zero Point Vibrational Energy (zpe) 11537.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11537.0 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 CCSD=FULL/cc-pVDZ
ABC
0.38497 0.35970 0.18667

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.044 0.124 -0.004
O2 -0.482 1.253 0.010
N3 1.284 -0.224 -0.077
O4 -0.822 -0.989 0.003
H5 1.918 0.516 0.200
H6 1.523 -1.152 0.252
H7 -1.730 -0.653 0.010

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21041.37501.35822.01142.03741.8564
O21.21042.30332.26772.51733.14012.2783
N31.37502.30332.24231.01311.01343.0457
O41.35822.26772.24233.13252.36390.9684
H52.01142.51731.01313.13251.71503.8355
H62.03743.14011.01342.36391.71503.3002
H71.85642.27833.04570.96843.83553.3002

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 113.898 C1 N3 H6 116.266
C1 O4 H7 104.612 O2 C1 N3 125.846
O2 C1 O4 123.878 N3 C1 O4 110.239
H5 N3 H6 115.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability