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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-207.919641
Energy at 298.15K 
HF Energy-207.666664
Nuclear repulsion energy103.968051
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/daug-cc-pVTZ
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' 3155 3155 11.44 67.14 0.64 0.78
2 A' 3060 3060 45.07 211.59 0.01 0.02
3 A' 2341 2341 1023.77 1.08 0.08 0.15
4 A' 1518 1518 3.58 3.92 0.46 0.63
5 A' 1482 1482 18.37 8.28 0.38 0.55
6 A' 1457 1457 27.63 27.54 0.18 0.31
7 A' 1165 1165 19.73 0.67 0.75 0.86
8 A' 875 875 27.81 12.81 0.12 0.21
9 A' 641 641 27.30 0.57 0.47 0.64
10 A' 176 176 17.73 2.08 0.63 0.78
11 A" 3127 3127 15.77 64.99 0.75 0.86
12 A" 1523 1523 6.88 6.80 0.75 0.86
13 A" 1141 1141 0.15 0.26 0.75 0.86
14 A" 590 590 18.52 0.55 0.75 0.86
15 A" 46 46 1.75 0.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11147.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11147.2 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 B2PLYP/daug-cc-pVTZ
ABC
2.60983 0.14537 0.14136

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.353 1.092 0.000
N2 0.000 0.590 0.000
C3 -0.562 -0.473 0.000
O4 -1.230 -1.442 0.000
H5 1.321 2.177 0.000
H6 1.888 0.758 0.887
H7 1.888 0.758 -0.887

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44292.47273.61801.08521.08841.0884
N21.44291.20202.37482.06492.09282.0928
C32.47271.20201.17703.25052.88202.8820
O43.61802.37481.17704.42733.91803.9180
H51.08522.06493.25054.42731.76631.7663
H61.08842.09282.88203.91801.76631.7740
H71.08842.09282.88203.91801.76631.7740

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.254 N2 C1 H5 108.702
N2 C1 H6 110.762 N2 C1 H7 110.762
N2 C3 O4 173.301 H5 C1 H6 108.700
H5 C1 H7 108.700 H6 C1 H7 109.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.952      
2 N -0.170      
3 C 0.025      
4 O -0.791      
5 H 0.586      
6 H 0.651      
7 H 0.651      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.544 1.557 0.000 2.982
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.842 -0.592 -0.011
y -0.592 -25.154 -0.006
z -0.011 -0.006 -22.872
Traceless
 xyz
x 1.171 -0.592 -0.011
y -0.592 -2.296 -0.006
z -0.011 -0.006 1.126
Polar
3z2-r22.251
x2-y22.311
xy-0.592
xz-0.011
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.717 1.925 0.001
y 1.925 6.434 0.000
z 0.001 0.000 3.964


<r2> (average value of r2) Å2
<r2> 83.628
(<r2>)1/2 9.145