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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at B2PLYP=FULLultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-207.832524
Energy at 298.15K 
HF Energy-207.613431
Nuclear repulsion energy103.397442
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=FULLultrafine/daug-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' 3166 3166 12.39 68.05 0.66 0.79
2 A' 3063 3063 49.15 213.71 0.01 0.02
3 A' 2325 2325 985.66 1.04 0.18 0.30
4 A' 1495 1495 3.24 4.35 0.30 0.46
5 A' 1462 1462 15.41 11.94 0.35 0.52
6 A' 1436 1436 31.58 20.90 0.19 0.32
7 A' 1152 1152 19.96 0.72 0.74 0.85
8 A' 881 881 27.05 14.06 0.12 0.21
9 A' 637 637 25.92 0.68 0.43 0.60
10 A' 186 186 17.52 2.18 0.62 0.77
11 A" 3138 3138 17.64 66.70 0.75 0.86
12 A" 1499 1499 6.64 7.00 0.75 0.86
13 A" 1129 1129 0.13 0.32 0.75 0.86
14 A" 580 580 17.46 0.54 0.75 0.86
15 A" 69 69 1.67 0.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11108.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11108.5 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=FULLultrafine/daug-cc-pVDZ
ABC
2.46992 0.14488 0.14053

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.376 1.063 0.000
N2 0.000 0.608 0.000
C3 -0.569 -0.463 0.000
O4 -1.254 -1.429 0.000
H5 1.379 2.156 0.000
H6 1.903 0.708 0.894
H7 1.903 0.708 -0.894

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44952.47253.62291.09341.09661.0966
N21.44951.21322.39212.07302.10502.1050
C32.47251.21321.18393.26432.87812.8781
O43.62292.39211.18394.44793.91563.9156
H51.09342.07303.26434.44791.78051.7805
H61.09662.10502.87813.91561.78051.7886
H71.09662.10502.87813.91561.78051.7886

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 136.247 N2 C1 H5 108.407
N2 C1 H6 110.771 N2 C1 H7 110.771
N2 C3 O4 172.661 H5 C1 H6 108.783
H5 C1 H7 108.783 H6 C1 H7 109.274
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.672      
2 N 0.406      
3 C -0.413      
4 O -0.828      
5 H -0.305      
6 H -0.266      
7 H -0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.561 1.446 0.000 2.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.959 -0.557 -0.011
y -0.557 -25.336 -0.006
z -0.011 -0.006 -23.076
Traceless
 xyz
x 1.246 -0.557 -0.011
y -0.557 -2.318 -0.006
z -0.011 -0.006 1.072
Polar
3z2-r22.144
x2-y22.376
xy-0.557
xz-0.011
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.847 1.958 0.001
y 1.958 6.486 0.001
z 0.001 0.001 4.020


<r2> (average value of r2) Å2
<r2> 84.127
(<r2>)1/2 9.172