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

using model chemistry: TPSSh/6-311G*

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 TPSSh/6-311G*
 hartrees
Energy at 0K-245.200344
Energy at 298.15K 
HF Energy-245.200344
Nuclear repulsion energy123.292248
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 TPSSh/6-311G*
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' 3758 3620 47.53      
2 A' 3747 3609 43.63      
3 A' 3623 3490 39.08      
4 A' 1843 1775 517.44      
5 A' 1654 1593 108.87      
6 A' 1433 1380 128.11      
7 A' 1244 1199 221.11      
8 A' 1082 1042 49.84      
9 A' 948 913 47.27      
10 A' 576 555 35.22      
11 A' 476 459 7.01      
12 A" 775 747 30.41      
13 A" 607 585 67.47      
14 A" 486 468 78.37      
15 A" 192i 185i 264.40      

Unscaled Zero Point Vibrational Energy (zpe) 11030.7 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 10624.8 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 TPSSh/6-311G*
ABC
0.38406 0.36159 0.18624

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.133 0.000
O2 -0.086 1.343 0.000
N3 1.149 -0.589 0.000
O4 -1.082 -0.701 0.000
H5 2.025 -0.099 0.000
H6 1.137 -1.594 0.000
H7 -1.856 -0.118 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21251.35701.36642.03832.06841.8726
O21.21252.29282.27332.55623.18172.2943
N31.35702.29282.23401.00421.00523.0412
O41.36642.27332.23403.16532.39310.9685
H52.03832.55621.00423.16531.73923.8808
H62.06843.18171.00522.39311.73923.3377
H71.87262.29433.04120.96853.88083.3377

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 118.598 C1 N3 H6 121.521
C1 O4 H7 105.371 O2 C1 N3 126.234
O2 C1 O4 123.539 N3 C1 O4 110.227
H5 N3 H6 119.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.595      
2 O -0.404      
3 N -0.779      
4 O -0.544      
5 H 0.365      
6 H 0.363      
7 H 0.404      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.702 -2.451 0.000 2.550
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.325 -0.324 0.000
y -0.324 4.136 0.000
z 0.000 0.000 1.977


<r2> (average value of r2) Å2
<r2> 64.441
(<r2>)1/2 8.028

Conformer 2 (C1)

Jump to S1C1
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-245.200420
Energy at 298.15K-245.205140
HF Energy-245.200420
Nuclear repulsion energy123.258963
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 TPSSh/6-311G*
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 3752 3614 46.34      
2 A 3736 3599 37.36      
3 A 3607 3475 32.66      
4 A 1845 1777 501.69      
5 A 1661 1599 101.28      
6 A 1431 1378 127.22      
7 A 1248 1202 196.22      
8 A 1090 1050 74.30      
9 A 949 914 46.13      
10 A 773 745 38.67      
11 A 600 578 86.91      
12 A 577 555 37.28      
13 A 493 475 38.84      
14 A 464 447 25.14      
15 A 280 270 278.30      

Unscaled Zero Point Vibrational Energy (zpe) 11253.2 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 10839.1 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 TPSSh/6-311G*
ABC
0.38387 0.36107 0.18630

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.039 0.128 -0.001
O2 -0.475 1.258 0.005
N3 1.274 -0.228 -0.046
O4 -0.829 -0.987 0.003
H5 1.950 0.498 0.122
H6 1.542 -1.180 0.138
H7 -1.740 -0.660 0.003

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.21171.36171.36592.02732.05671.8744
O21.21172.29602.27272.54443.16742.2975
N31.36172.29602.23681.00561.00653.0459
O41.36592.27272.23683.15322.38250.9682
H52.02732.54441.00563.15321.72733.8695
H62.05673.16741.00652.38251.72733.3258
H71.87442.29753.04590.96823.86953.3258

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 117.036 C1 N3 H6 119.813
C1 O4 H7 105.571 O2 C1 N3 126.208
O2 C1 O4 123.589 N3 C1 O4 110.184
H5 N3 H6 118.290
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.582      
2 O -0.399      
3 N -0.763      
4 O -0.540      
5 H 0.359      
6 H 0.358      
7 H 0.404      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.255 -2.042 0.706 2.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.488 -0.205 0.007
y -0.205 3.999 0.002
z 0.007 0.002 2.002


<r2> (average value of r2) Å2
<r2> 64.469
(<r2>)1/2 8.029