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

using model chemistry: QCISD(T)/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(T)/6-31G*
 hartrees
Energy at 0K-194.671898
Energy at 298.15K-194.679206
HF Energy-193.953345
Nuclear repulsion energy154.704194
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(T)/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' 3240 3108        
2 A' 3176 3046        
3 A' 3159 3031        
4 A' 3153 3024        
5 A' 3144 3016        
6 A' 3132 3005        
7 A' 3044 2920        
8 A' 1727 1657        
9 A' 1662 1594        
10 A' 1536 1474        
11 A' 1497 1436        
12 A' 1459 1399        
13 A' 1414 1356        
14 A' 1340 1285        
15 A' 1309 1256        
16 A' 1208 1158        
17 A' 1081 1037        
18 A' 980 941        
19 A' 904 867        
20 A' 616 591        
21 A' 389 373        
22 A' 227 217        
23 A" 3099 2973        
24 A" 1525 1463        
25 A" 1079 1035        
26 A" 1002 961        
27 A" 951 912        
28 A" 889 853        
29 A" 782 750        
30 A" 623 598        
31 A" 343 329        
32 A" 117 112        
33 A" 103 99        

Unscaled Zero Point Vibrational Energy (zpe) 24953.7 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 23938.1 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 QCISD(T)/6-31G*
ABC
0.52661 0.08704 0.07575

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.405 0.161 0.000
C2 1.108 -0.216 0.000
C3 0.000 0.741 0.000
C4 -1.322 0.451 0.000
C5 -1.961 -0.913 0.000
H6 2.694 1.213 0.000
H7 3.214 -0.568 0.000
H8 0.869 -1.282 0.000
H9 0.293 1.796 0.000
H10 -2.022 1.292 0.000
H11 -1.225 -1.724 0.000
H12 -2.603 -1.038 0.884
H13 -2.603 -1.038 -0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35072.47413.73854.49581.09111.08912.10692.67094.56904.09005.22505.2250
C21.35071.46452.52023.14682.13492.13551.09182.17073.47422.77773.90253.9025
C32.47411.46451.35362.56532.73513.47082.20181.09432.09532.75313.27463.2746
C43.73852.52021.35361.50624.08794.64962.79382.10151.09362.17792.15402.1540
C54.49583.14682.56531.50625.11735.18652.85393.52362.20561.09571.10001.1000
H61.09112.13492.73514.08795.11731.85533.09072.47094.71654.89735.82315.8231
H71.08912.13553.47084.64965.18651.85532.45123.75785.55664.58705.90305.9030
H82.10691.09182.20182.79382.85393.09072.45123.13073.87052.14013.59153.5915
H92.67092.17071.09432.10153.52362.47093.75783.13072.36893.83334.14704.1470
H104.56903.47422.09531.09362.20564.71655.55663.87052.36893.11992.55862.5586
H114.09002.77772.75312.17791.09574.89734.58702.14013.83333.11991.77591.7759
H125.22503.90253.27462.15401.10005.82315.90303.59154.14702.55861.77591.7682
H135.22503.90253.27462.15401.10005.82315.90303.59154.14702.55861.77591.7682

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 122.959 C1 C2 H8 118.839
C2 C1 H6 121.573 C2 C1 H7 121.788
C2 C3 C4 126.791 C2 C3 H9 115.300
C3 C2 H8 118.202 C3 C4 C5 127.458
C3 C4 H10 117.393 C4 C3 H9 117.909
C4 C5 H11 112.706 C4 C5 H12 110.510
C4 C5 H13 110.510 C5 C4 H10 115.149
H6 C1 H7 116.639 H11 C5 H12 107.962
H11 C5 H13 107.962 H12 C5 H13 106.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability