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

using model chemistry: B2PLYP=FULL/6-31+G**

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 B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-244.945492
Energy at 298.15K 
HF Energy-244.719882
Nuclear repulsion energy123.117298
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 B2PLYP=FULL/6-31+G**
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 3642 99.82      
2 A' 3814 3627 82.04      
3 A' 3668 3488 68.61      
4 A' 1828 1739 598.99      
5 A' 1639 1559 123.57      
6 A' 1438 1368 175.02      
7 A' 1233 1173 194.46      
8 A' 1087 1034 41.41      
9 A' 961 914 48.72      
10 A' 580 552 33.63      
11 A' 490 466 6.96      
12 A" 768 731 23.49      
13 A" 590 561 63.50      
14 A" 471 448 82.37      
15 A" 188i 179i 253.55      

Unscaled Zero Point Vibrational Energy (zpe) 11104.8 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 10560.7 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 B2PLYP=FULL/6-31+G**
ABC
0.38258 0.36095 0.18573

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.128 0.000
O2 -0.079 1.346 0.000
N3 1.148 -0.594 0.000
O4 -1.087 -0.696 0.000
H5 2.022 -0.100 0.000
H6 1.132 -1.598 0.000
H7 -1.861 -0.115 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.22041.35641.36462.03492.06441.8773
O21.22042.29562.27792.55063.18372.3049
N31.35642.29562.23761.00401.00463.0473
O41.36462.27792.23763.16602.39490.9682
H52.03492.55061.00403.16601.74323.8835
H62.06443.18371.00462.39491.74323.3402
H71.87732.30493.04730.96823.88353.3402

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 118.345 C1 N3 H6 121.227
C1 O4 H7 105.917 O2 C1 N3 125.888
O2 C1 O4 123.476 N3 C1 O4 110.636
H5 N3 H6 120.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-244.945539
Energy at 298.15K-244.950221
HF Energy-244.719800
Nuclear repulsion energy123.091938
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 B2PLYP=FULL/6-31+G**
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 3642 99.11      
2 A 3800 3614 76.27      
3 A 3658 3479 61.92      
4 A 1829 1740 583.69      
5 A 1643 1563 116.60      
6 A 1437 1367 173.96      
7 A 1236 1175 178.36      
8 A 1093 1040 57.69      
9 A 962 915 48.17      
10 A 769 731 29.08      
11 A 586 558 65.97      
12 A 578 550 45.04      
13 A 495 471 23.28      
14 A 465 442 52.56      
15 A 256 243 261.98      

Unscaled Zero Point Vibrational Energy (zpe) 11318.0 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 10763.4 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 B2PLYP=FULL/6-31+G**
ABC
0.38258 0.36046 0.18576

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.123 -0.001
O2 -0.466 1.265 0.004
N3 1.273 -0.236 -0.038
O4 -0.839 -0.981 0.002
H5 1.954 0.490 0.099
H6 1.539 -1.194 0.114
H7 -1.749 -0.651 0.002

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21991.35951.36442.02772.05681.8780
O21.21992.29762.27722.54273.17412.3058
N31.35952.29762.24001.00491.00553.0505
O41.36442.27722.24003.15842.38920.9682
H52.02772.54271.00493.15841.73483.8759
H62.05683.17411.00552.38921.73483.3335
H71.87802.30583.05050.96823.87593.3335

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 117.309 C1 N3 H6 120.105
C1 O4 H7 105.998 O2 C1 N3 125.859
O2 C1 O4 123.482 N3 C1 O4 110.645
H5 N3 H6 119.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability