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

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-209.391430
Energy at 298.15K-209.395980
HF Energy-208.809025
Nuclear repulsion energy138.733348
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 CISD/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' 3312 3067 3.45      
2 A' 3291 3047 7.32      
3 A' 3247 3006 11.94      
4 A' 3156 2922 13.54      
5 A' 2473 2290 20.21      
6 A' 1824 1689 15.41      
7 A' 1580 1463 13.76      
8 A' 1513 1401 1.75      
9 A' 1406 1302 1.02      
10 A' 1388 1285 0.35      
11 A' 1196 1108 0.20      
12 A' 1084 1004 4.78      
13 A' 961 890 4.81      
14 A' 584 541 0.16      
15 A' 411 381 1.58      
16 A' 186 172 5.11      
17 A" 3221 2982 12.99      
18 A" 1569 1453 8.57      
19 A" 1143 1058 1.16      
20 A" 1045 967 42.31      
21 A" 849 786 2.57      
22 A" 511 473 6.16      
23 A" 196 182 1.43      
24 A" 183 169 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 18165.1 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 16817.2 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 CISD/6-31G*
ABC
1.27950 0.07687 0.07349

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.642 0.459 0.000
H2 2.642 -1.076 0.877
H3 2.642 -1.076 -0.877
C4 2.255 -0.557 0.000
H5 0.282 -1.547 0.000
C6 0.761 -0.576 0.000
H7 0.427 1.509 0.000
C8 0.000 0.516 0.000
N9 -2.588 0.397 0.000
C10 -1.435 0.442 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.76831.76831.08803.09782.14722.45102.64255.23044.0769
H21.76831.75471.09042.56222.13573.51573.20735.50424.4384
H31.76831.75471.09042.56222.13573.51573.20735.50424.4384
C41.08801.09041.09042.20731.49422.75872.49724.93593.8227
H53.09782.56222.56222.20731.08313.05952.08233.46602.6275
C62.14722.13572.13571.49421.08312.11111.33053.48702.4200
H72.45103.51573.51572.75873.05952.11111.08093.21382.1460
C82.64253.20733.20732.49722.08231.33051.08092.59091.4369
N95.23045.50425.50424.93593.46603.48703.21382.59091.1540
C104.07694.43844.43843.82272.62752.42002.14601.43691.1540

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 108.531 H1 C4 H3 108.531
H1 C4 C6 111.543 H2 C4 H3 107.149
H2 C4 C6 110.476 H3 C4 C6 110.476
C4 C6 H5 116.940 C4 C6 C8 124.171
H5 C6 C8 118.889 C6 C8 H7 121.862
C6 C8 C10 121.919 H7 C8 C10 116.220
C8 C10 N9 179.320
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability