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

using model chemistry: CCSD(T)=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(T)=FULL/TZVP
 hartrees
Energy at 0K-244.732288
Energy at 298.15K 
HF Energy-243.915228
Nuclear repulsion energy123.411935
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/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' 3829 3660        
2 A' 3792 3625        
3 A' 3652 3491        
4 A' 1844 1763        
5 A' 1635 1564        
6 A' 1442 1378        
7 A' 1252 1197        
8 A' 1089 1041        
9 A' 957 915        
10 A' 592 566        
11 A' 495 473        
12 A" 751 718        
13 A" 563 538        
14 A" 420 401        
15 A" 437i 418i        

Unscaled Zero Point Vibrational Energy (zpe) 10937.7 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 10456.4 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/TZVP
ABC
0.38459 0.36242 0.18659

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 -0.068 1.342 0.000
N3 1.142 -0.602 0.000
O4 -1.091 -0.687 0.000
H5 2.020 -0.116 0.000
H6 1.113 -1.605 0.000
H7 -1.853 -0.093 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21151.35721.36422.03492.06291.8671
O21.21152.28922.27212.54643.17452.2906
N31.35722.28922.23411.00341.00373.0379
O41.36422.27212.23413.16252.38700.9665
H52.03492.54641.00343.16251.74343.8732
H62.06293.17451.00372.38701.74343.3291
H71.86712.29063.03790.96653.87323.3291

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 118.324 C1 N3 H6 121.076
C1 O4 H7 105.181 O2 C1 N3 125.951
O2 C1 O4 123.691 N3 C1 O4 110.358
H5 N3 H6 120.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/TZVP
 hartrees
Energy at 0K-244.733128
Energy at 298.15K-244.738063
HF Energy-243.914627
Nuclear repulsion energy123.318033
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/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 3827 3659        
2 A 3739 3574        
3 A 3615 3456        
4 A 1847 1765        
5 A 1643 1570        
6 A 1439 1376        
7 A 1265 1209        
8 A 1111 1063        
9 A 959 916        
10 A 763 730        
11 A 597 571        
12 A 554 530        
13 A 528 504        
14 A 502 480        
15 A 430 411        

Unscaled Zero Point Vibrational Energy (zpe) 11409.1 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 10907.1 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/TZVP
ABC
0.38457 0.36060 0.18669

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.126 -0.001
O2 -0.462 1.260 0.008
N3 1.278 -0.239 -0.071
O4 -0.838 -0.978 0.004
H5 1.928 0.484 0.188
H6 1.508 -1.176 0.219
H7 -1.743 -0.640 -0.002

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21001.36931.36252.00882.03451.8678
O21.21002.29842.26962.51923.14022.2917
N31.36932.29842.24201.00681.00733.0483
O41.36252.26962.24203.13372.36320.9667
H52.00882.51921.00683.13371.71323.8440
H62.03453.14021.00732.36321.71323.3020
H71.86782.29173.04830.96673.84403.3020

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 114.581 C1 N3 H6 116.941
C1 O4 H7 105.367 O2 C1 N3 125.912
O2 C1 O4 123.724 N3 C1 O4 110.314
H5 N3 H6 116.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability