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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
1 2 no C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at G3B3
 hartrees
Energy at 0K-148.701431
Energy at 298.15K-148.696862
HF Energy-148.780062
Nuclear repulsion energy59.067429
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 B3LYP/6-31G*
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' 3537 3397 33.75      
2 A' 2366 2272 89.83      
3 A' 1663 1597 45.16      
4 A' 1098 1054 6.02      
5 A' 610 585 246.39      
6 A' 486 467 39.68      
7 A" 3630 3486 47.60      
8 A" 1211 1163 0.31      
9 A" 407 391 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 7503.7 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 7205.8 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 B3LYP/6-31G*
ABC
10.18632 0.33584 0.32793

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.220 0.000
N2 -0.028 1.386 0.000
N3 0.098 -1.125 0.000
H4 -0.243 -1.574 0.843
H5 -0.243 -1.574 -0.843

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16601.34821.99681.9968
N21.16602.51343.08453.0845
N31.34822.51341.01431.0143
H41.99683.08451.01431.6863
H51.99683.08451.01431.6863

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 115.058 C1 N3 H5 115.058
N2 C1 N3 177.294 H4 N3 H5 112.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.471      
2 N -0.447      
3 N -0.753      
4 H 0.365      
5 H 0.365      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.118 -4.361 0.000 4.502
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 39.757
(<r2>)1/2 6.305

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at G3B3
 hartrees
Energy at 0K-148.700695
Energy at 298.15K-148.696320
HF Energy-148.778554
Nuclear repulsion energy59.214601
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 B3LYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3617 3473 62.05      
2 A1 2365 2271 117.69      
3 A1 1640 1575 54.70      
4 A1 1136 1091 10.08      
5 B1 523 502 1.01      
6 B1 444i 426i 334.26      
7 B2 3726 3578 81.68      
8 B2 1143 1098 4.64      
9 B2 404 388 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 7054.9 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 6774.9 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 B3LYP/6-31G*
ABC
11.11675 0.33745 0.32751

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.220
N2 0.000 0.000 1.388
N3 0.000 0.000 -1.112
H4 0.000 0.867 -1.626
H5 0.000 -0.867 -1.626

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16761.33242.03962.0396
N21.16762.50013.13603.1360
N31.33242.50011.00801.0080
H42.03963.13601.00801.7347
H52.03963.13601.00801.7347

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.577 C1 N3 H5 120.577
N2 C1 N3 180.000 H4 N3 H5 118.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.498      
2 N -0.448      
3 N -0.795      
4 H 0.372      
5 H 0.372      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.761 4.761
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 39.644
(<r2>)1/2 6.296