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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-194.894016
Energy at 298.15K-194.886898
HF Energy-193.953265
Nuclear repulsion energy155.906040
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 CBS-Q
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' 3399 3399 26.51      
2 A' 3353 3353 14.58      
3 A' 3333 3333 38.23      
4 A' 3314 3314 14.79      
5 A' 3307 3307 8.01      
6 A' 3285 3285 12.74      
7 A' 3183 3183 42.29      
8 A' 1904 1904 8.49      
9 A' 1823 1823 2.79      
10 A' 1628 1628 5.16      
11 A' 1597 1597 9.50      
12 A' 1556 1556 2.97      
13 A' 1510 1510 3.47      
14 A' 1434 1434 2.40      
15 A' 1392 1392 1.47      
16 A' 1279 1279 0.71      
17 A' 1146 1146 0.07      
18 A' 1024 1024 7.98      
19 A' 945 945 1.40      
20 A' 653 653 4.99      
21 A' 413 413 4.78      
22 A' 236 236 0.50      
23 A" 3230 3230 35.20      
24 A" 1619 1619 4.99      
25 A" 1168 1168 0.98      
26 A" 1139 1139 12.76      
27 A" 1101 1101 0.32      
28 A" 1051 1051 51.50      
29 A" 878 878 7.85      
30 A" 695 695 25.73      
31 A" 394 394 0.23      
32 A" 139 139 0.08      
33 A" 118 118 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 26622.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26622.7 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 CBS-Q
ABC
0.52673 0.08737 0.07600

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.390 0.138 0.000
C2 1.114 -0.224 0.000
C3 0.000 0.736 0.000
C4 -1.300 0.460 0.000
C5 -1.967 -0.890 0.000
H6 2.688 1.175 0.000
H7 3.184 -0.591 0.000
H8 0.873 -1.275 0.000
H9 0.294 1.776 0.000
H10 -1.982 1.299 0.000
H11 -1.263 -1.715 0.000
H12 -2.607 -0.997 0.875
H13 -2.607 -0.997 -0.875

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.32582.46333.70354.47591.07981.07812.07282.65994.52314.09515.19825.1982
C21.32581.47052.50893.15202.10582.10271.07862.16153.45022.80553.90023.9002
C32.46331.47051.32882.55172.72323.44972.19241.08092.06032.75673.25053.2505
C43.70352.50891.32881.50564.05104.60582.78072.06701.08132.17502.14422.1442
C54.47593.15202.55171.50565.09205.16002.86583.49542.18881.08461.08991.0899
H61.07982.10582.72324.05105.09201.83473.04942.46764.67104.89465.78965.7896
H71.07812.10273.44974.60585.16001.83472.41083.73575.50114.58705.87165.8716
H82.07281.07862.19242.78072.86583.04942.41083.10573.84412.18033.59943.5994
H92.65992.16151.08092.06703.49542.46763.73573.10572.32543.82214.10764.1076
H104.52313.45022.06031.08132.18884.67105.50113.84412.32543.09832.53532.5353
H114.09512.80552.75672.17501.08464.89464.58702.18033.82213.09831.75771.7577
H125.19823.90023.25052.14421.08995.78965.87163.59944.10762.53531.75771.7506
H135.19823.90023.25052.14421.08995.78965.87163.59944.10762.53531.75771.7506

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 123.426 C1 C2 H8 118.744
C2 C1 H6 121.844 C2 C1 H7 121.677
C2 C3 C4 127.273 C2 C3 H9 114.958
C3 C2 H8 117.829 C3 C4 C5 128.278
C3 C4 H10 117.128 C4 C3 H9 117.769
C4 C5 H11 113.219 C4 C5 H12 110.389
C4 C5 H13 110.389 C5 C4 H10 114.593
H6 C1 H7 116.479 H11 C5 H12 107.867
H11 C5 H13 107.867 H12 C5 H13 106.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability