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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-268.518267
Energy at 298.15K-268.523669
HF Energy-267.668271
Nuclear repulsion energy193.138132
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 MP2/6-31+G**
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' 3337 3139 7.22      
2 A' 3259 3065 3.18      
3 A' 3244 3051 5.72      
4 A' 3231 3039 5.56      
5 A' 3208 3018 6.84      
6 A' 3005 2826 84.28      
7 A' 1730 1628 281.04      
8 A' 1718 1616 8.23      
9 A' 1656 1558 1.83      
10 A' 1488 1400 3.10      
11 A' 1434 1349 0.03      
12 A' 1346 1266 1.18      
13 A' 1338 1258 1.66      
14 A' 1289 1212 1.78      
15 A' 1222 1149 32.13      
16 A' 1158 1089 80.94      
17 A' 983 925 3.63      
18 A' 604 568 12.24      
19 A' 435 410 0.87      
20 A' 386 363 4.23      
21 A' 151 142 6.67      
22 A" 1037 976 67.60      
23 A" 1004 944 3.18      
24 A" 973 915 4.68      
25 A" 919 864 41.96      
26 A" 831 782 5.59      
27 A" 633 596 2.93      
28 A" 265 249 9.40      
29 A" 170 160 1.68      
30 A" 85 80 2.78      

Unscaled Zero Point Vibrational Energy (zpe) 21068.9 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 19817.4 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 MP2/6-31+G**
ABC
0.95345 0.04454 0.04256

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.109 -1.579 0.000
O2 -1.095 -2.812 0.000
C3 0.095 -0.746 0.000
C4 0.000 0.605 0.000
C5 1.136 1.508 0.000
C6 1.004 2.850 0.000
H7 -2.069 -1.029 0.000
H8 1.053 -1.253 0.000
H9 -0.990 1.058 0.000
H10 2.126 1.064 0.000
H11 0.026 3.317 0.000
H12 1.866 3.502 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23271.46382.44963.81744.90721.10582.18652.63994.17795.02615.8877
O21.23272.38393.58804.86236.03842.03072.65403.87135.04016.23066.9734
C31.46382.38391.35442.48343.70932.18161.08452.10492.72134.06374.6023
C42.44963.58801.35441.45142.45922.63632.13611.08842.17532.71223.4456
C53.81744.86232.48341.45141.34834.08772.76312.17281.08522.12192.1228
C64.90726.03843.70932.45921.34834.94854.10392.68032.10941.08291.0807
H71.10582.03072.18162.63634.08774.94853.12962.34984.68834.82496.0008
H82.18652.65401.08452.13612.76314.10393.12963.08472.55424.68444.8242
H92.63993.87132.10491.08842.17282.68032.34983.08473.11592.47703.7583
H104.17795.04012.72132.17531.08522.10944.68832.55423.11593.07962.4513
H115.02616.23064.06372.71222.12191.08294.82494.68442.47703.07961.8485
H125.88776.97344.60233.44562.12281.08076.00084.82423.75832.45131.8485

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.681 C1 C3 H8 117.418
O2 C1 C3 124.048 O2 C1 H7 120.448
C3 C1 H7 115.504 C3 C4 C5 124.487
C3 C4 H9 118.603 C4 C3 H8 121.900
C4 C5 C6 122.849 C4 C5 H10 117.358
C5 C4 H9 116.910 C5 C6 H11 121.183
C5 C6 H12 121.442 C6 C5 H10 119.793
H11 C6 H12 117.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability