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

using model chemistry: CCSD=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-244.706022
Energy at 298.15K 
HF Energy-243.916380
Nuclear repulsion energy123.871598
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/TZVP
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' 3870 3667 85.04      
2 A' 3819 3618 73.10      
3 A' 3681 3487 66.83      
4 A' 1873 1775 598.63      
5 A' 1653 1567 123.71      
6 A' 1466 1389 147.23      
7 A' 1271 1204 223.25      
8 A' 1105 1047 39.25      
9 A' 979 928 40.91      
10 A' 604 572 35.55      
11 A' 504 478 5.74      
12 A" 774 733 24.04      
13 A" 572 542 58.35      
14 A" 438 415 89.77      
15 A" 404i 383i 251.81      

Unscaled Zero Point Vibrational Energy (zpe) 11101.8 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 10519.0 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/TZVP
ABC
0.38861 0.36422 0.18801

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
O2 -0.065 1.336 0.000
N3 1.137 -0.603 0.000
O4 -1.089 -0.679 0.000
H5 2.015 -0.121 0.000
H6 1.106 -1.604 0.000
H7 -1.851 -0.088 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20651.35351.35722.03032.05771.8636
O21.20652.28112.26002.53863.16452.2841
N31.35352.28112.22751.00141.00173.0318
O41.35722.26002.22753.15352.38210.9638
H52.03032.53861.00143.15351.73993.8655
H62.05773.16451.00172.38211.73993.3226
H71.86362.28413.03180.96383.86553.3226

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 118.355 C1 N3 H6 121.058
C1 O4 H7 105.569 O2 C1 N3 125.917
O2 C1 O4 123.562 N3 C1 O4 110.521
H5 N3 H6 120.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-244.706661
Energy at 298.15K-244.711615
HF Energy-243.915944
Nuclear repulsion energy123.783607
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/TZVP
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 3870 3667 85.12      
2 A 3773 3575 51.55      
3 A 3649 3457 47.06      
4 A 1878 1779 551.82      
5 A 1660 1573 105.47      
6 A 1463 1386 142.77      
7 A 1280 1213 167.15      
8 A 1126 1067 88.67      
9 A 980 928 38.48      
10 A 783 742 54.02      
11 A 608 576 52.12      
12 A 560 531 82.00      
13 A 512 485 63.78      
14 A 497 471 149.49      
15 A 439 416 114.46      

Unscaled Zero Point Vibrational Energy (zpe) 11538.4 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 10932.7 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/TZVP
ABC
0.38853 0.36258 0.18808

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.125 -0.002
O2 -0.457 1.255 0.008
N3 1.273 -0.241 -0.067
O4 -0.839 -0.970 0.004
H5 1.929 0.480 0.176
H6 1.506 -1.180 0.205
H7 -1.743 -0.636 -0.001

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20491.36411.35592.00782.03321.8655
O21.20492.28842.25812.51413.13392.2870
N31.36412.28842.23491.00431.00473.0420
O41.35592.25812.23493.12892.36240.9638
H52.00782.51411.00433.12891.71293.8412
H62.03323.13391.00472.36241.71293.3001
H71.86552.28703.04200.96383.84123.3001

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 117.456
C1 O4 H7 105.821 O2 C1 N3 125.838
O2 C1 O4 123.617 N3 C1 O4 110.507
H5 N3 H6 116.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability