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

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-244.778400
Energy at 298.15K 
HF Energy-243.929717
Nuclear repulsion energy124.167682
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/aug-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' 3872 3706 99.73      
2 A' 3820 3656 77.75      
3 A' 3682 3523 68.30      
4 A' 1876 1795 619.58      
5 A' 1649 1578 132.95      
6 A' 1470 1407 144.82      
7 A' 1266 1211 205.34      
8 A' 1102 1055 39.19      
9 A' 989 946 35.69      
10 A' 603 577 36.58      
11 A' 499 477 6.14      
12 A" 811 776 24.53      
13 A" 595 569 56.97      
14 A" 491 470 65.78      
15 A" 225i 216i 219.05      

Unscaled Zero Point Vibrational Energy (zpe) 11249.1 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 10765.4 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 CCD/aug-cc-pVTZ
ABC
0.39108 0.36545 0.18892

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.129 0.000
O2 -0.053 1.333 0.000
N3 1.130 -0.612 0.000
O4 -1.092 -0.666 0.000
H5 2.010 -0.137 0.000
H6 1.090 -1.611 0.000
H7 -1.848 -0.071 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20461.35161.35122.02712.05291.8584
O21.20462.27642.25282.53263.15742.2783
N31.35162.27642.22320.99940.99953.0265
O41.35122.25282.22323.14662.37750.9615
H52.02712.53260.99943.14661.73733.8576
H62.05293.15740.99952.37751.73733.3162
H71.85842.27833.02650.96153.85763.3162

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 118.362 C1 N3 H6 120.925
C1 O4 H7 105.704 O2 C1 N3 125.784
O2 C1 O4 123.535 N3 C1 O4 110.681
H5 N3 H6 120.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-244.778511
Energy at 298.15K-244.783334
HF Energy-243.929628
Nuclear repulsion energy124.111215
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/aug-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 3872 3705 99.57      
2 A 3795 3632 68.66      
3 A 3665 3507 57.51      
4 A 1879 1798 595.42      
5 A 1657 1586 116.88      
6 A 1469 1406 149.11      
7 A 1270 1215 181.90      
8 A 1115 1067 62.66      
9 A 989 947 34.43      
10 A 810 776 32.07      
11 A 606 579 45.17      
12 A 583 558 67.96      
13 A 508 486 23.61      
14 A 476 456 30.98      
15 A 305 292 238.69      

Unscaled Zero Point Vibrational Energy (zpe) 11499.0 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 11004.6 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/aug-cc-pVTZ
ABC
0.39104 0.36448 0.18892

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.123 -0.002
O2 -0.461 1.251 0.006
N3 1.268 -0.235 -0.048
O4 -0.834 -0.970 0.002
H5 1.938 0.488 0.126
H6 1.520 -1.184 0.148
H7 -1.737 -0.639 0.005

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20381.35711.35082.01572.04101.8597
O21.20382.28032.25182.52003.14212.2799
N31.35712.28032.22741.00111.00123.0322
O41.35082.25182.22743.13462.36860.9616
H52.01572.52001.00113.13461.72363.8455
H62.04103.14211.00122.36861.72363.3055
H71.85972.27993.03220.96163.84553.3055

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 116.662 C1 N3 H6 119.096
C1 O4 H7 105.842 O2 C1 N3 125.750
O2 C1 O4 123.547 N3 C1 O4 110.687
H5 N3 H6 118.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability