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All results from a given calculation for CHOCHCHCH3 (2-Butenal)

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-231.148983
Energy at 298.15K-231.154718
Nuclear repulsion energy151.661543
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 BLYP/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' 3094 3071 10.89      
2 A' 3059 3035 30.12      
3 A' 3041 3018 1.40      
4 A' 2955 2932 14.68      
5 A' 2763 2742 128.51      
6 A' 1707 1694 227.39      
7 A' 1650 1638 47.24      
8 A' 1460 1448 16.59      
9 A' 1392 1381 2.36      
10 A' 1383 1373 1.92      
11 A' 1298 1288 3.11      
12 A' 1248 1238 0.04      
13 A' 1135 1126 54.51      
14 A' 1064 1055 17.97      
15 A' 921 914 26.90      
16 A' 528 524 7.57      
17 A' 448 445 2.00      
18 A' 204 202 5.28      
19 A" 2998 2975 15.26      
20 A" 1454 1442 6.86      
21 A" 1038 1030 0.52      
22 A" 1002 994 7.54      
23 A" 973 966 17.21      
24 A" 772 766 0.16      
25 A" 292 290 5.64      
26 A" 199 198 0.56      
27 A" 129 128 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 19103.5 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 18956.4 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 BLYP/6-31G**
ABC
1.08625 0.07127 0.06773

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.397 -0.522 0.000
C2 0.901 -0.673 0.000
C3 0.000 0.337 0.000
C4 -1.452 0.072 0.000
O5 -2.321 0.943 0.000
H6 -1.722 -1.020 0.000
H7 0.309 1.388 0.000
H8 0.517 -1.703 0.000
H9 2.707 0.533 0.000
H10 2.840 -1.017 0.883
H11 2.840 -1.017 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50302.54633.89434.94044.14912.82992.21941.10001.10481.1048
C21.50301.35362.46823.60492.64662.14411.09932.17122.15772.1577
C32.54631.35361.47582.39892.19271.09542.10442.71423.26783.2678
C43.89432.46821.47581.23071.12492.19842.65084.18444.51494.5149
O54.94043.60492.39891.23072.05222.66773.88035.04505.59095.5909
H64.14912.64662.19271.12492.05223.15042.34144.69374.64684.6468
H72.82992.14411.09542.19842.66773.15043.09772.54593.60133.6013
H82.21941.09932.10442.65083.88032.34143.09773.12942.57752.5775
H91.10002.17122.71424.18445.04504.69372.54593.12941.78891.7889
H101.10482.15773.26784.51495.59094.64683.60132.57751.78891.7657
H111.10482.15773.26784.51495.59094.64683.60132.57751.78891.7657

picture of 2-Butenal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 126.017 C1 C2 H8 116.190
C2 C1 H9 112.121 C2 C1 H10 110.742
C2 C1 H11 110.742 C2 C3 C4 121.406
C2 C3 H7 121.852 C3 C2 H8 117.793
C3 C4 O5 124.597 C3 C4 H6 114.267
C4 C3 H7 116.742 O5 C4 H6 121.136
H9 C1 H10 108.461 H9 C1 H11 108.461
H10 C1 H11 106.090
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.327      
2 C -0.023      
3 C -0.056      
4 C 0.260      
5 O -0.398      
6 H 0.034      
7 H 0.076      
8 H 0.080      
9 H 0.113      
10 H 0.121      
11 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.394 -1.833 0.000 3.858
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.108 3.060 0.000
y 3.060 -29.797 0.000
z 0.000 0.000 -30.478
Traceless
 xyz
x -3.970 3.060 0.000
y 3.060 2.496 0.000
z 0.000 0.000 1.475
Polar
3z2-r22.949
x2-y2-4.311
xy3.060
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 163.490
(<r2>)1/2 12.786