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All results from a given calculation for C4H5N ((E)-2-Butenenitrile)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-209.194900
Energy at 298.15K-209.199213
HF Energy-208.726465
Nuclear repulsion energy134.993510
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 MP2/LANL2DZ
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' 3187 3069 12.58      
2 A' 3167 3050 16.83      
3 A' 3127 3011 19.25      
4 A' 3018 2907 23.60      
5 A' 2046 1971 3.46      
6 A' 1664 1602 2.64      
7 A' 1536 1479 14.81      
8 A' 1467 1413 6.61      
9 A' 1349 1299 0.34      
10 A' 1341 1291 0.09      
11 A' 1147 1105 0.29      
12 A' 1017 979 7.04      
13 A' 911 877 6.49      
14 A' 538 518 0.25      
15 A' 385 371 0.62      
16 A' 173 166 3.18      
17 A" 3109 2995 23.73      
18 A" 1516 1460 10.97      
19 A" 1099 1058 0.14      
20 A" 988 951 59.29      
21 A" 794 764 0.04      
22 A" 447 431 1.87      
23 A" 182 176 1.46      
24 A" 170 163 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 17187.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 16553.6 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 MP2/LANL2DZ
ABC
1.24068 0.07253 0.06943

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.689 0.464 0.000
H2 2.713 -1.092 0.891
H3 2.713 -1.092 -0.891
C4 2.313 -0.575 0.000
H5 0.304 -1.593 0.000
C6 0.787 -0.607 0.000
H7 0.450 1.514 0.000
C8 0.000 0.516 0.000
N9 -2.674 0.432 0.000
C10 -1.459 0.462 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.79261.79261.10393.14922.18252.47322.68945.36324.1479
H21.79261.78241.10532.61772.17693.56493.27755.66944.5405
H31.79261.78241.10532.61772.17693.56493.27755.66944.5405
C41.10391.10531.10532.25281.52642.79922.55765.08813.9120
H53.14922.61772.61772.25281.09773.11082.13083.60112.7071
C62.18252.17692.17691.52641.09772.14851.37193.61412.4876
H72.47323.56493.56492.79923.11082.14851.09513.30652.1802
C82.68943.27753.27752.55762.13081.37191.09512.67551.4600
N95.36325.66945.66945.08813.60113.61413.30652.67551.2156
C104.14794.54054.54053.91202.70712.48762.18021.46001.2156

picture of (E)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 108.464 H1 C4 H3 108.464
H1 C4 C6 111.125 H2 C4 H3 107.473
H2 C4 C6 110.601 H3 C4 C6 110.601
C4 C6 H5 117.366 C4 C6 C8 123.784
H5 C6 C8 118.850 C6 C8 H7 120.714
C6 C8 C10 122.876 H7 C8 C10 116.410
C8 C10 N9 179.257
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability