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

using model chemistry: MP3=FULL/cc-pVDZ

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 MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-244.524982
Energy at 298.15K 
HF Energy-243.847446
Nuclear repulsion energy123.681817
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 MP3=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3901 3669 89.33      
2 A' 3854 3624 74.44      
3 A' 3708 3486 66.02      
4 A' 1936 1821 550.32      
5 A' 1640 1542 180.17      
6 A' 1489 1400 112.48      
7 A' 1286 1209 215.44      
8 A' 1105 1039 25.66      
9 A' 998 938 32.03      
10 A' 605 569 38.94      
11 A' 499 469 4.97      
12 A" 810 762 33.00      
13 A" 599 564 59.61      
14 A" 492 463 64.90      
15 A" 336i 316i 234.22      

Unscaled Zero Point Vibrational Energy (zpe) 11292.3 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 10618.2 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 MP3=FULL/cc-pVDZ
ABC
0.38792 0.36286 0.18749

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
O2 -0.041 1.338 0.000
N3 1.128 -0.627 0.000
O4 -1.102 -0.659 0.000
H5 2.019 -0.158 0.000
H6 1.076 -1.632 0.000
H7 -1.844 -0.042 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20751.35921.35652.03942.06641.8522
O21.20752.28692.26202.54623.17412.2707
N31.35922.28692.22991.00681.00683.0288
O41.35652.26202.22993.16062.38530.9653
H52.03942.54621.00683.16061.75013.8644
H62.06643.17411.00682.38531.75013.3249
H71.85222.27073.02880.96533.86443.3249

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 118.310 C1 N3 H6 120.979
C1 O4 H7 104.571 O2 C1 N3 125.890
O2 C1 O4 123.719 N3 C1 O4 110.391
H5 N3 H6 120.711
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-244.525606
Energy at 298.15K-244.530572
HF Energy-243.847486
Nuclear repulsion energy123.579674
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 MP3=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3899 3666 88.68      
2 A 3793 3567 50.24      
3 A 3666 3447 41.80      
4 A 1941 1825 504.21      
5 A 1650 1551 131.44      
6 A 1488 1399 131.60      
7 A 1293 1216 170.91      
8 A 1131 1064 72.18      
9 A 999 940 28.03      
10 A 811 763 57.87      
11 A 609 573 57.61      
12 A 578 544 85.02      
13 A 514 483 13.33      
14 A 481 452 89.83      
15 A 435 409 194.33      

Unscaled Zero Point Vibrational Energy (zpe) 11644.5 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 10949.4 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 MP3=FULL/cc-pVDZ
ABC
0.38780 0.36096 0.18761

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.044 0.124 -0.004
O2 -0.475 1.250 0.009
N3 1.280 -0.227 -0.074
O4 -0.826 -0.982 0.003
H5 1.920 0.509 0.192
H6 1.519 -1.158 0.240
H7 -1.730 -0.645 0.010

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20581.37201.35462.01072.03641.8533
O21.20582.29592.25962.51363.13522.2728
N31.37202.29592.23861.01091.01113.0405
O41.35462.25962.23863.13002.36320.9655
H52.01072.51361.01093.13001.71543.8323
H62.03643.13521.01112.36321.71543.2976
H71.85332.27283.04050.96553.83233.2976

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 114.238 C1 N3 H6 116.596
C1 O4 H7 104.786 O2 C1 N3 125.796
O2 C1 O4 123.796 N3 C1 O4 110.373
H5 N3 H6 116.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability