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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.822739
Energy at 298.15K 
HF Energy-243.925716
Nuclear repulsion energy124.451412
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-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' 3888 3686 92.01      
2 A' 3835 3636 73.11      
3 A' 3703 3511 65.83      
4 A' 1894 1795 549.85      
5 A' 1662 1576 131.74      
6 A' 1485 1408 139.39      
7 A' 1268 1202 201.43      
8 A' 1103 1046 35.13      
9 A' 993 941 34.14      
10 A' 604 573 37.82      
11 A' 499 473 6.02      
12 A" 821 778 28.16      
13 A" 601 569 57.20      
14 A" 495 469 61.10      
15 A" 207i 196i 222.59      

Unscaled Zero Point Vibrational Energy (zpe) 11321.1 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 10733.6 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 CCSD=FULL/cc-pVTZ
ABC
0.39273 0.36729 0.18979

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.129 0.000
O2 -0.061 1.330 0.000
N3 1.130 -0.605 0.000
O4 -1.086 -0.671 0.000
H5 2.005 -0.128 0.000
H6 1.095 -1.602 0.000
H7 -1.838 -0.075 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20241.34761.34892.02152.04781.8494
O21.20242.27192.24832.52803.15082.2653
N31.34762.27192.21730.99680.99703.0154
O41.34892.24832.21733.13872.37140.9599
H52.02152.52800.99683.13871.73233.8436
H62.04783.15080.99702.37141.73233.3069
H71.84942.26533.01540.95993.84363.3069

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 118.370 C1 N3 H6 120.984
C1 O4 H7 105.205 O2 C1 N3 125.889
O2 C1 O4 123.484 N3 C1 O4 110.627
H5 N3 H6 120.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.822829
Energy at 298.15K-244.827644
HF Energy-243.925692
Nuclear repulsion energy124.397313
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-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 3888 3686 92.40      
2 A 3812 3614 63.90      
3 A 3686 3495 55.67      
4 A 1896 1798 529.14      
5 A 1666 1580 118.73      
6 A 1483 1406 142.19      
7 A 1270 1205 179.84      
8 A 1114 1056 55.81      
9 A 993 942 33.02      
10 A 820 777 35.07      
11 A 607 575 46.24      
12 A 588 557 65.83      
13 A 508 482 24.07      
14 A 480 455 27.05      
15 A 290 275 248.60      

Unscaled Zero Point Vibrational Energy (zpe) 11550.0 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 10950.6 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 CCSD=FULL/cc-pVTZ
ABC
0.39264 0.36639 0.18979

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.122 -0.002
O2 -0.465 1.246 0.006
N3 1.265 -0.230 -0.046
O4 -0.828 -0.972 0.002
H5 1.932 0.493 0.122
H6 1.521 -1.176 0.147
H7 -1.728 -0.637 0.008

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20161.35281.34862.01042.03601.8511
O21.20162.27532.24762.51503.13562.2678
N31.35282.27532.22160.99830.99863.0214
O41.34862.24762.22163.12742.36290.9599
H52.01042.51500.99833.12741.71943.8324
H62.03603.13560.99862.36291.71943.2966
H71.85112.26783.02140.95993.83243.2966

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 116.729 C1 N3 H6 119.199
C1 O4 H7 105.380 O2 C1 N3 125.826
O2 C1 O4 123.509 N3 C1 O4 110.651
H5 N3 H6 118.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability