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All results from a given calculation for C5H8 (1,3-Pentadiene, (Z)-)

using model chemistry: QCISD/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 QCISD/6-31G
 hartrees
Energy at 0K-194.386782
Energy at 298.15K-194.394079
HF Energy-193.880361
Nuclear repulsion energy153.482781
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 QCISD/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' 3201 3085 27.91      
2 A' 3134 3019 26.25      
3 A' 3123 3009 37.05      
4 A' 3113 3000 11.04      
5 A' 3096 2983 13.44      
6 A' 3087 2975 4.73      
7 A' 3002 2893 30.58      
8 A' 1718 1655 2.63      
9 A' 1653 1592 1.30      
10 A' 1548 1492 5.14      
11 A' 1506 1452 6.34      
12 A' 1475 1422 5.11      
13 A' 1434 1382 0.74      
14 A' 1357 1308 0.51      
15 A' 1323 1275 0.61      
16 A' 1209 1165 1.56      
17 A' 1091 1051 0.24      
18 A' 977 942 5.68      
19 A' 892 859 0.49      
20 A' 624 602 3.71      
21 A' 393 379 2.03      
22 A' 226 218 0.12      
23 A" 3054 2943 29.72      
24 A" 1536 1480 6.13      
25 A" 1103 1063 0.69      
26 A" 999 962 16.36      
27 A" 962 927 6.60      
28 A" 917 884 40.64      
29 A" 779 751 13.10      
30 A" 620 598 25.10      
31 A" 346 334 0.22      
32 A" 102 98 0.00      
33 A" 87 84 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 24843.0 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 23938.7 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 QCISD/6-31G
ABC
0.51819 0.08546 0.07439

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.427 0.151 0.000
C2 1.120 -0.220 0.000
C3 0.000 0.749 0.000
C4 -1.332 0.462 0.000
C5 -1.983 -0.914 0.000
H6 2.728 1.204 0.000
H7 3.238 -0.581 0.000
H8 0.874 -1.288 0.000
H9 0.298 1.806 0.000
H10 -2.036 1.302 0.000
H11 -1.243 -1.729 0.000
H12 -2.626 -1.041 0.890
H13 -2.626 -1.041 -0.890

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35962.50013.77194.53771.09511.09252.11762.69674.61004.12435.26795.2679
C21.35961.48122.54443.17972.14862.14901.09572.18673.50432.80353.93633.9363
C32.50011.48121.36232.58862.76583.50092.21731.09832.11022.77283.30043.3004
C43.77192.54441.36231.52254.12704.68732.81592.11301.09702.19272.17382.1738
C54.53773.17972.58861.52255.16595.23232.88223.55072.21711.10091.10471.1047
H61.09512.14862.76584.12705.16591.85683.10632.50314.76564.93735.87365.8736
H71.09252.14903.50094.68735.23231.85682.46733.78715.60094.62625.94915.9491
H82.11761.09572.21732.81592.88223.10632.46733.14773.89672.16313.62013.6201
H92.69672.18671.09832.11303.55072.50313.78713.14772.38873.85704.17744.1774
H104.61003.50432.11021.09702.21714.76565.60093.89672.38873.13352.57492.5749
H114.12432.80352.77282.19271.10094.93734.62622.16313.85703.13351.78241.7824
H125.26793.93633.30042.17381.10475.87365.94913.62014.17742.57491.78241.7792
H135.26793.93633.30042.17381.10475.87365.94913.62014.17742.57491.78241.7792

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.244 C1 C2 H8 118.795
C2 C1 H6 121.794 C2 C1 H7 122.050
C2 C3 C4 126.919 C2 C3 H9 115.126
C3 C2 H8 117.961 C3 C4 C5 127.534
C3 C4 H10 117.797 C4 C3 H9 117.954
C4 C5 H11 112.407 C4 C5 H12 110.661
C4 C5 H13 110.661 C5 C4 H10 114.668
H6 C1 H7 116.157 H11 C5 H12 107.818
H11 C5 H13 107.818 H12 C5 H13 107.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability