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All results from a given calculation for C5H10O (2-methylbutyraldehyde)

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-271.873192
Energy at 298.15K-271.883911
HF Energy-271.873192
Nuclear repulsion energy239.503911
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 B3LYP/TZVP
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 3119 3011 19.19      
2 A 3110 3002 24.81      
3 A 3102 2995 36.18      
4 A 3093 2986 37.39      
5 A 3048 2942 20.24      
6 A 3047 2941 14.14      
7 A 3032 2927 24.14      
8 A 3016 2912 28.62      
9 A 2970 2867 18.31      
10 A 2858 2759 118.41      
11 A 1803 1741 194.32      
12 A 1513 1461 4.42      
13 A 1507 1455 11.85      
14 A 1502 1450 5.78      
15 A 1497 1445 8.58      
16 A 1489 1438 0.56      
17 A 1435 1385 9.69      
18 A 1424 1374 1.80      
19 A 1414 1365 3.30      
20 A 1380 1333 5.72      
21 A 1360 1313 0.92      
22 A 1315 1270 3.19      
23 A 1278 1234 0.85      
24 A 1195 1154 1.31      
25 A 1160 1120 3.44      
26 A 1120 1081 3.32      
27 A 1040 1004 0.43      
28 A 1015 980 11.05      
29 A 985 951 8.56      
30 A 940 908 1.45      
31 A 896 865 22.80      
32 A 793 765 6.05      
33 A 777 750 3.51      
34 A 663 640 7.00      
35 A 405 391 1.00      
36 A 388 375 0.58      
37 A 286 276 5.42      
38 A 267 258 0.37      
39 A 226 218 2.27      
40 A 194 187 0.43      
41 A 93 90 3.00      
42 A 74 71 4.12      

Unscaled Zero Point Vibrational Energy (zpe) 30913.5 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 29843.9 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 B3LYP/TZVP
ABC
0.23295 0.06954 0.05796

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.371 -0.701 0.212
C2 -0.088 0.087 0.385
C3 1.059 -0.671 -0.320
C4 2.456 -0.156 0.028
C5 -0.240 1.540 -0.054
O6 -2.403 -0.272 -0.237
H7 -1.303 -1.762 0.539
H8 0.121 0.048 1.465
H9 0.997 -1.732 -0.056
H10 0.903 -0.615 -1.402
H11 3.223 -0.757 -0.466
H12 2.599 0.879 -0.286
H13 2.637 -0.207 1.105
H14 -0.422 1.603 -1.129
H15 -1.087 2.012 0.446
H16 0.657 2.116 0.177

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.51502.48773.86992.52401.20531.11262.08662.59662.79024.64344.30164.13572.82912.73733.4706
C21.51501.54512.58061.52582.42422.21811.10112.16342.16063.52072.88072.83412.16812.16952.1716
C32.48771.54511.52912.57863.48662.74052.14131.09521.09492.17002.18522.17632.83183.51982.8597
C43.86992.58061.52913.18674.86834.12022.75012.14942.16051.09191.09121.09323.56614.17452.9025
C52.52401.52582.57863.18672.82783.51972.16003.49852.78714.17572.92453.56021.09191.09031.0903
O61.20532.42423.48664.86832.82782.00843.06123.70533.52265.65155.13345.21672.86942.72303.9033
H71.11262.21812.74054.12023.51972.00842.48252.37643.15504.74404.78404.27423.85753.78144.3606
H82.08661.10112.14132.75012.16003.06122.48252.50013.04543.74173.14682.55513.07272.52072.4952
H92.59662.16341.09522.14943.49853.70532.37642.50011.75232.46423.07212.52273.77984.31403.8704
H102.79022.16061.09492.16052.78713.52263.15503.04541.75232.50522.52033.07562.59763.77793.1639
H114.64343.52072.17001.09194.17575.65154.74403.74172.46422.50521.75971.76454.39215.20253.9053
H124.30162.88072.18521.09122.92455.13344.78403.14683.07212.52031.75971.76533.21903.92482.3492
H134.13572.83412.17631.09323.56025.21674.27422.55512.52273.07561.76451.76534.19824.38463.1909
H142.82912.16812.83183.56611.09192.86943.85753.07273.77982.59764.39213.21904.19821.75731.7695
H152.73732.16953.51984.17451.09032.72303.78142.52074.31403.77795.20253.92484.38461.75731.7668
H163.47062.17162.85972.90251.09033.90334.36062.49523.87043.16393.90532.34923.19091.76951.7668

picture of 2-methylbutyraldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 108.769 C1 C2 C5 112.209
C1 C2 H8 104.694 C2 C1 O6 125.655
C2 C1 H7 114.292 C2 C3 C4 114.165
C2 C3 H9 108.853 C2 C3 H10 108.646
C2 C5 H14 110.746 C2 C5 H15 110.953
C2 C5 H16 111.121 C3 C2 C5 114.211
C3 C2 H8 106.834 C3 C4 H11 110.666
C3 C4 H12 111.933 C3 C4 H13 111.087
C4 C3 H9 108.860 C4 C3 H10 109.739
C5 C2 H8 109.561 O6 C1 H7 120.053
H9 C3 H10 106.281 H11 C4 H12 107.431
H11 C4 H13 107.708 H12 C4 H13 107.832
H14 C5 H15 107.278 H14 C5 H16 108.366
H15 C5 H16 108.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.079      
2 C -0.017      
3 C -0.207      
4 C -0.365      
5 C -0.387      
6 O -0.268      
7 H 0.063      
8 H 0.124      
9 H 0.117      
10 H 0.119      
11 H 0.129      
12 H 0.123      
13 H 0.111      
14 H 0.118      
15 H 0.137      
16 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.759 -0.457 0.858 2.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.224 -0.106 -2.003
y -0.106 -37.750 -0.299
z -2.003 -0.299 -38.016
Traceless
 xyz
x -9.342 -0.106 -2.003
y -0.106 4.870 -0.299
z -2.003 -0.299 4.471
Polar
3z2-r28.942
x2-y2-9.475
xy-0.106
xz-2.003
yz-0.299


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.752 -0.246 0.296
y -0.246 9.246 -0.280
z 0.296 -0.280 7.898


<r2> (average value of r2) Å2
<r2> 205.132
(<r2>)1/2 14.322