return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-268.605866
Energy at 298.15K-268.611298
HF Energy-267.670343
Nuclear repulsion energy191.783973
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 CCSD(T)=FULL/cc-pVDZ
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' 3259 3139        
2 A' 3190 3073        
3 A' 3175 3058        
4 A' 3157 3040        
5 A' 3145 3029        
6 A' 2908 2801        
7 A' 1768 1703        
8 A' 1699 1637        
9 A' 1639 1579        
10 A' 1446 1393        
11 A' 1406 1354        
12 A' 1304 1256        
13 A' 1301 1253        
14 A' 1245 1199        
15 A' 1180 1137        
16 A' 1122 1081        
17 A' 955 920        
18 A' 591 569        
19 A' 425 409        
20 A' 375 361        
21 A' 144 139        
22 A" 1028 990        
23 A" 1005 968        
24 A" 970 934        
25 A" 916 882        
26 A" 841 810        
27 A" 636 613        
28 A" 274 263        
29 A" 200 192        
30 A" 93 90        

Unscaled Zero Point Vibrational Energy (zpe) 20697.8 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 19936.1 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 CCSD(T)=FULL/cc-pVDZ
ABC
0.93824 0.04388 0.04192

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.128 -1.598 0.000
O2 -1.116 -2.819 0.000
C3 0.090 -0.752 0.000
C4 0.000 0.607 0.000
C5 1.151 1.515 0.000
C6 1.029 2.868 0.000
H7 -2.092 -1.021 0.000
H8 1.059 -1.270 0.000
H9 -0.999 1.072 0.000
H10 2.150 1.055 0.000
H11 0.043 3.351 0.000
H12 1.909 3.522 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22171.48272.47643.85794.95931.12372.21132.67304.21605.08465.9523
O21.22172.39313.60344.89146.07832.04622.67013.89335.06636.27757.0255
C31.48272.39311.36222.50333.74002.19921.09862.12492.73954.10294.6448
C42.47643.60341.36221.46632.48422.65142.15531.10222.19562.74373.4842
C53.85794.89142.50331.46631.35844.11772.78672.19561.09942.14412.1449
C64.95936.07833.74002.48421.35844.98724.13822.70912.13171.09821.0961
H71.12372.04622.19922.65144.11774.98723.16132.36184.72264.86536.0540
H82.21132.67011.09862.15532.78674.13823.16133.11822.56764.73104.8666
H92.67303.89332.12491.10222.19562.70912.36183.11823.14882.50513.8023
H104.21605.06632.73952.19561.09942.13174.72262.56763.14883.11612.4789
H115.08466.27754.10292.74372.14411.09824.86534.73102.50513.11611.8742
H125.95237.02554.64483.48422.14491.09616.05404.86663.80232.47891.8742

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.970 C1 C3 H8 117.106
O2 C1 C3 124.197 O2 C1 H7 121.424
C3 C1 H7 114.378 C3 C4 C5 124.469
C3 C4 H9 118.761 C4 C3 H8 121.924
C4 C5 C6 123.112 C4 C5 H10 116.964
C5 C4 H9 116.769 C5 C6 H11 121.212
C5 C6 H12 121.458 C6 C5 H10 119.924
H11 C6 H12 117.331
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability