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

using model chemistry: CCSD/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 CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-244.785285
Energy at 298.15K 
HF Energy-243.929358
Nuclear repulsion energy124.001596
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/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' 3853 3683 95.47      
2 A' 3810 3641 75.15      
3 A' 3672 3509 65.26      
4 A' 1858 1776 593.93      
5 A' 1644 1571 124.53      
6 A' 1464 1399 142.98      
7 A' 1260 1205 200.61      
8 A' 1098 1049 40.08      
9 A' 982 939 35.96      
10 A' 598 572 35.92      
11 A' 496 474 6.03      
12 A" 805 769 23.77      
13 A" 593 567 56.12      
14 A" 488 466 65.14      
15 A" 242i 231i 216.75      

Unscaled Zero Point Vibrational Energy (zpe) 11189.3 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 10694.7 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/aug-cc-pVTZ
ABC
0.38968 0.36478 0.18841

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.129 0.000
O2 -0.055 1.335 0.000
N3 1.132 -0.611 0.000
O4 -1.092 -0.670 0.000
H5 2.011 -0.134 0.000
H6 1.093 -1.610 0.000
H7 -1.848 -0.073 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20721.35261.35322.02812.05431.8591
O21.20722.27962.25702.53513.16132.2798
N31.35262.27962.22550.99991.00013.0285
O41.35322.25702.22553.14942.37950.9626
H52.02812.53510.99993.14941.73843.8596
H62.05433.16131.00012.37951.73843.3187
H71.85912.27983.02850.96263.85963.3187

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 118.338 C1 N3 H6 120.929
C1 O4 H7 105.552 O2 C1 N3 125.789
O2 C1 O4 123.545 N3 C1 O4 110.666
H5 N3 H6 120.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-244.785430
Energy at 298.15K 
HF Energy-243.929236
Nuclear repulsion energy123.937605
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/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/aug-cc-pVTZ
ABC
0.38960 0.36371 0.18841

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.040 0.123 -0.002
O2 -0.463 1.252 0.006
N3 1.270 -0.235 -0.051
O4 -0.834 -0.973 0.003
H5 1.937 0.490 0.135
H6 1.521 -1.182 0.158
H7 -1.737 -0.640 0.005

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20631.35881.35282.01522.04081.8606
O21.20632.28402.25602.52113.14402.2815
N31.35882.28402.23021.00181.00213.0348
O41.35282.25602.23023.13572.36920.9627
H52.01522.52111.00183.13571.72273.8458
H62.04083.14401.00212.36921.72273.3064
H71.86062.28153.03480.96273.84583.3064

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 116.421 C1 N3 H6 118.862
C1 O4 H7 105.699 O2 C1 N3 125.758
O2 C1 O4 123.561 N3 C1 O4 110.662
H5 N3 H6 118.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability