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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: HF/cc-pVDZ

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 HF/cc-pVDZ
 hartrees
Energy at 0K-147.926153
Energy at 298.15K-147.928609
Nuclear repulsion energy59.820857
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 HF/cc-pVDZ
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 3412 50.41      
2 A' 2598 2359 125.55      
3 A' 1757 1595 40.66      
4 A' 1148 1042 5.16      
5 A' 750 681 221.32      
6 A' 539 489 34.21      
7 A" 3858 3503 72.39      
8 A" 1320 1199 0.00      
9 A" 464 421 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 8095.5 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 7350.7 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 HF/cc-pVDZ
ABC
10.16138 0.34397 0.33629

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.226 0.000
N2 -0.080 1.362 0.000
N3 0.143 -1.114 0.000
H4 -0.221 -1.545 0.830
H5 -0.221 -1.545 -0.830

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.13901.34721.96771.9677
N21.13902.48573.02603.0260
N31.34722.48571.00341.0034
H41.96773.02601.00341.6601
H51.96773.02601.00341.6601

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 112.862 C1 N3 H5 112.862
N2 C1 N3 177.927 H4 N3 H5 111.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.110      
2 N -0.199      
3 N -0.214      
4 H 0.152      
5 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.003 -4.397 0.000 4.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.222 2.242 0.000
y 2.242 -18.620 0.000
z 0.000 0.000 -15.056
Traceless
 xyz
x -1.385 2.242 0.000
y 2.242 -1.981 0.000
z 0.000 0.000 3.365
Polar
3z2-r26.731
x2-y20.397
xy2.242
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.712 -0.067 0.000
y -0.067 4.364 0.000
z 0.000 0.000 2.103


<r2> (average value of r2) Å2
<r2> 39.213
(<r2>)1/2 6.262

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-147.923449
Energy at 298.15K 
HF Energy-147.923449
Nuclear repulsion energy60.023019
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 HF/cc-pVDZ
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 3832 3480 86.86      
2 A1 2583 2345 171.76      
3 A1 1723 1564 51.17      
4 A1 1196 1086 12.33      
5 B1 592 538 4.20      
6 B1 535i 486i 303.98      
7 B2 3972 3607 128.21      
8 B2 1229 1116 2.51      
9 B2 455 414 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 7523.8 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 6831.6 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 HF/cc-pVDZ
ABC
11.26057 0.34639 0.33606

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.225
N2 0.000 0.000 1.366
N3 0.000 0.000 -1.102
H4 0.000 0.862 -1.601
H5 0.000 -0.862 -1.601

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.14121.32672.01922.0192
N21.14122.46793.08983.0898
N31.32672.46790.99600.9960
H42.01923.08980.99601.7236
H52.01923.08980.99601.7236

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.087 C1 N3 H5 120.087
N2 C1 N3 180.000 H4 N3 H5 119.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.132      
2 N -0.210      
3 N -0.237      
4 H 0.158      
5 H 0.158      


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 -4.823 4.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.372 0.000 0.000
y 0.000 -14.720 0.000
z 0.000 0.000 -17.813
Traceless
 xyz
x -2.105 0.000 0.000
y 0.000 3.372 0.000
z 0.000 0.000 -1.266
Polar
3z2-r2-2.533
x2-y2-3.651
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.608 0.000 0.000
y 0.000 2.059 0.000
z 0.000 0.000 4.403


<r2> (average value of r2) Å2
<r2> 39.075
(<r2>)1/2 6.251