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All results from a given calculation for C5H6 (3-Penten-1-yne, (Z)-)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-193.958060
Energy at 298.15K-193.962568
Nuclear repulsion energy141.526233
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 B1B95/6-31G**
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' 3502 3344 68.80      
2 A' 3199 3055 25.01      
3 A' 3181 3037 1.60      
4 A' 3164 3021 2.92      
5 A' 3054 2916 19.06      
6 A' 2230 2129 1.46      
7 A' 1718 1641 6.73      
8 A' 1488 1421 7.69      
9 A' 1435 1370 5.47      
10 A' 1393 1330 6.53      
11 A' 1262 1205 0.03      
12 A' 1126 1075 0.17      
13 A' 981 936 19.94      
14 A' 923 881 2.52      
15 A' 663 633 8.17      
16 A' 650 620 39.04      
17 A' 383 365 5.70      
18 A' 162 154 0.14      
19 A" 3114 2974 15.74      
20 A" 1488 1420 7.13      
21 A" 1058 1011 0.26      
22 A" 987 942 0.62      
23 A" 757 723 23.02      
24 A" 599 572 56.29      
25 A" 514 490 6.04      
26 A" 284 271 0.69      
27 A" 149 143 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 19731.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 18839.6 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 B1B95/6-31G**
ABC
0.40107 0.11186 0.08890

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.146 -0.949 0.000
C2 2.236 -0.397 0.000
C3 1.197 0.225 0.000
H4 0.121 2.070 0.000
C5 0.000 0.990 0.000
H6 -2.073 1.162 0.000
C7 -1.236 0.468 0.000
H8 -0.661 -1.595 0.000
H9 -2.164 -1.248 0.878
H10 -2.164 -1.248 -0.878
C11 -1.564 -0.984 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06492.27554.27433.69585.63004.60603.86155.39085.39084.7110
C21.06491.21063.24962.63104.58203.57823.13454.56654.56653.8455
C32.27551.21062.13601.42073.40162.44562.60073.77323.77323.0149
H44.27433.24962.13601.08682.37352.09943.74684.12244.12243.4880
C53.69582.63101.42071.08682.07981.34192.66753.23403.23402.5187
H65.63004.58203.40162.37352.07981.08723.09752.56642.56642.2059
C74.60603.57822.44562.09941.34191.08722.14122.13852.13851.4886
H83.86153.13452.60073.74682.66753.09752.14121.77501.77501.0906
H95.39084.56653.77324.12243.23402.56642.13851.77501.75531.0950
H105.39084.56653.77324.12243.23402.56642.13851.77501.75531.0950
C114.71103.84553.01493.48802.51872.20591.48861.09061.09501.0950

picture of 3-Penten-1-yne, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 179.688 C2 C3 C5 178.355
C3 C5 H4 116.197 C3 C5 C7 124.545
H4 C5 C7 119.258 C5 C7 H6 117.399
C5 C7 C11 125.627 H6 C7 C11 116.974
C7 C11 H8 111.301 C7 C11 H9 110.808
C7 C11 H10 110.808 H8 C11 H9 108.610
H8 C11 H10 108.610 H9 C11 H10 106.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.181      
2 C -0.461      
3 C 0.250      
4 H 0.137      
5 C -0.182      
6 H 0.116      
7 C -0.063      
8 H 0.145      
9 H 0.139      
10 H 0.139      
11 C -0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.743 -0.185 0.000 0.765
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.188 -1.974 0.000
y -1.974 -27.825 0.000
z 0.000 0.000 -31.998
Traceless
 xyz
x 4.724 -1.974 0.000
y -1.974 0.768 0.000
z 0.000 0.000 -5.491
Polar
3z2-r2-10.983
x2-y22.637
xy-1.974
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.056 -0.791 0.000
y -0.791 6.722 0.000
z 0.000 0.000 3.739


<r2> (average value of r2) Å2
<r2> 132.148
(<r2>)1/2 11.496