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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-245.103049
Energy at 298.15K 
HF Energy-244.806658
Nuclear repulsion energy123.711823
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/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' 3803 3649 95.91      
2 A' 3782 3628 73.01      
3 A' 3646 3498 60.20      
4 A' 1817 1743 555.50      
5 A' 1628 1562 103.56      
6 A' 1429 1371 142.32      
7 A' 1233 1183 197.14      
8 A' 1080 1036 46.29      
9 A' 955 916 49.01      
10 A' 587 563 31.72      
11 A' 491 471 6.42      
12 A" 788 756 20.96      
13 A" 593 569 56.96      
14 A" 485 465 64.51      
15 A" 129i 123i 207.46      

Unscaled Zero Point Vibrational Energy (zpe) 11093.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10643.2 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/aug-cc-pVTZ
ABC
0.38699 0.36374 0.18750

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.130 0.000
O2 -0.073 1.338 0.000
N3 1.142 -0.596 0.000
O4 -1.086 -0.688 0.000
H5 2.015 -0.108 0.000
H6 1.120 -1.596 0.000
H7 -1.853 -0.103 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21041.35251.35962.02852.05701.8678
O21.21042.28312.26522.53883.16682.2904
N31.35252.28312.23001.00021.00073.0352
O41.35962.26522.23003.15492.38560.9646
H52.02852.53881.00023.15491.73693.8679
H62.05703.16681.00072.38561.73693.3269
H71.86782.29043.03520.96463.86793.3269

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 118.359 C1 N3 H6 121.162
C1 O4 H7 105.693 O2 C1 N3 125.867
O2 C1 O4 123.520 N3 C1 O4 110.613
H5 N3 H6 120.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-245.103062
Energy at 298.15K-245.107715
HF Energy-244.806633
Nuclear repulsion energy123.694424
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/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 3804 3650 95.54      
2 A 3771 3618 69.58      
3 A 3638 3491 55.61      
4 A 1817 1743 546.12      
5 A 1630 1564 99.46      
6 A 1429 1371 142.95      
7 A 1235 1185 184.66      
8 A 1086 1041 59.05      
9 A 957 918 47.76      
10 A 787 755 24.05      
11 A 592 568 58.61      
12 A 584 561 41.85      
13 A 498 478 24.14      
14 A 477 458 36.00      
15 A 205 197 216.04      

Unscaled Zero Point Vibrational Energy (zpe) 11255.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10798.0 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 B2PLYP=FULL/aug-cc-pVTZ
ABC
0.38696 0.36343 0.18753

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.038 0.124 -0.001
O2 -0.456 1.259 0.004
N3 1.267 -0.240 -0.032
O4 -0.841 -0.973 0.002
H5 1.952 0.480 0.086
H6 1.527 -1.198 0.098
H7 -1.745 -0.636 0.003

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21011.35501.35912.02322.05151.8684
O21.21012.28472.26482.53263.15992.2917
N31.35502.28472.23151.00091.00143.0377
O41.35912.26482.23153.14892.38090.9646
H52.02322.53261.00093.14891.73103.8622
H62.05153.15991.00142.38091.73103.3216
H71.86842.29173.03770.96463.86223.3216

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 117.567 C1 N3 H6 120.309
C1 O4 H7 105.788 O2 C1 N3 125.827
O2 C1 O4 123.551 N3 C1 O4 110.613
H5 N3 H6 119.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability