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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-267.457236
Energy at 298.15K-267.462857
HF Energy-267.259829
Nuclear repulsion energy192.776650
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 B2PLYP=FULL/3-21G
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' 3267 3110 9.08      
2 A' 3213 3058 4.94      
3 A' 3187 3034 5.27      
4 A' 3178 3025 5.66      
5 A' 3146 2995 5.43      
6 A' 2908 2769 115.62      
7 A' 1696 1615 15.43      
8 A' 1674 1594 185.18      
9 A' 1649 1570 4.82      
10 A' 1515 1442 3.93      
11 A' 1452 1382 2.28      
12 A' 1380 1314 1.02      
13 A' 1360 1295 2.30      
14 A' 1314 1251 1.80      
15 A' 1212 1153 12.18      
16 A' 1102 1049 108.40      
17 A' 991 944 3.33      
18 A' 611 581 12.27      
19 A' 439 418 0.72      
20 A' 391 373 4.15      
21 A' 154 146 4.34      
22 A" 1069 1018 42.15      
23 A" 1049 999 17.44      
24 A" 1010 962 23.01      
25 A" 979 932 32.92      
26 A" 899 856 10.23      
27 A" 664 632 3.48      
28 A" 288 274 7.40      
29 A" 216 206 0.76      
30 A" 102 97 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 21056.8 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 20046.1 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 B2PLYP=FULL/3-21G
ABC
0.95960 0.04429 0.04234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.096 -1.588 0.000
O2 -1.094 -2.831 0.000
C3 0.106 -0.743 0.000
C4 0.000 0.601 0.000
C5 1.127 1.523 0.000
C6 0.987 2.859 0.000
H7 -2.037 -1.004 0.000
H8 1.068 -1.243 0.000
H9 -0.994 1.048 0.000
H10 2.120 1.081 0.000
H11 0.008 3.326 0.000
H12 1.843 3.523 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.24231.46922.44833.82424.91111.10782.19122.63874.17945.03705.8955
O21.24232.40823.60184.88796.05842.05582.68263.88035.06306.25476.9992
C31.46922.40821.34782.48563.70802.15811.08452.10172.71734.07004.6054
C42.44833.60181.34781.45652.46452.59282.13071.09012.17352.72523.4542
C53.82424.88792.48561.45651.34304.04912.76672.17381.08642.12202.1235
C64.91116.05843.70802.46451.34304.90554.10252.68412.10751.08501.0826
H71.10782.05582.15812.59284.04914.90553.11382.30174.65004.78835.9612
H82.19122.68261.08452.13072.76674.10253.11383.08242.55104.69024.8279
H92.63873.88032.10171.09012.17382.68412.30173.08243.11392.48853.7641
H104.17945.06302.71732.17351.08642.10754.65002.55103.11393.08182.4568
H115.03706.25474.07002.72522.12201.08504.78834.69022.48853.08181.8450
H125.89556.99924.60543.45422.12351.08265.96124.82793.76412.45681.8450

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.646 C1 C3 H8 117.402
O2 C1 C3 125.068 O2 C1 H7 121.936
C3 C1 H7 112.996 C3 C4 C5 124.796
C3 C4 H9 118.729 C4 C3 H8 121.952
C4 C5 C6 123.316 C4 C5 H10 116.709
C5 C4 H9 116.474 C5 C6 H11 121.482
C5 C6 H12 121.834 C6 C5 H10 119.975
H11 C6 H12 116.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability