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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-193.826941
Energy at 298.15K 
HF Energy-193.607273
Nuclear repulsion energy141.032298
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 B2PLYP=FULLultrafine/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' 3516 3335 60.37      
2 A' 3212 3047 28.37      
3 A' 3193 3030 2.97      
4 A' 3175 3013 3.81      
5 A' 3071 2914 20.87      
6 A' 2189 2077 0.21      
7 A' 1709 1621 4.04      
8 A' 1533 1454 6.76      
9 A' 1470 1394 3.50      
10 A' 1434 1361 6.59      
11 A' 1289 1223 0.07      
12 A' 1145 1087 0.52      
13 A' 989 939 18.14      
14 A' 919 872 1.37      
15 A' 667 633 3.10      
16 A' 612 581 44.40      
17 A' 378 358 4.42      
18 A' 162 153 0.12      
19 A" 3125 2965 19.46      
20 A" 1534 1455 6.47      
21 A" 1089 1033 0.54      
22 A" 987 936 0.38      
23 A" 761 722 21.25      
24 A" 551 523 62.26      
25 A" 484 459 1.60      
26 A" 278 264 0.28      
27 A" 147 139 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 19808.7 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 18792.5 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 B2PLYP=FULLultrafine/6-31G*
ABC
0.39914 0.11076 0.08811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.174 -0.932 0.000
C2 2.257 -0.390 0.000
C3 1.205 0.220 0.000
H4 0.128 2.069 0.000
C5 0.000 0.990 0.000
H6 -2.078 1.162 0.000
C7 -1.239 0.468 0.000
H8 -0.687 -1.610 0.000
H9 -2.185 -1.243 0.880
H10 -2.185 -1.243 -0.880
C11 -1.584 -0.989 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06532.28084.27623.71045.65384.63033.92005.43985.43984.7589
C21.06531.21563.25282.64524.60413.60013.18654.60794.60793.8878
C32.28081.21562.14051.43023.41562.45732.63213.79583.79583.0404
H44.27623.25282.14051.08712.38482.10523.76824.13434.13433.5050
C53.71042.64521.43021.08712.08491.34452.68873.24543.24542.5349
H65.65384.60413.41562.38482.08491.08813.10132.56302.56302.2069
C74.63033.60012.45732.10521.34451.08812.15052.14412.14411.4978
H83.92003.18652.63213.76822.68873.10132.15051.77601.77601.0914
H95.43984.60793.79584.13433.24542.56302.14411.77601.76071.0954
H105.43984.60793.79584.13433.24542.56302.14411.77601.76071.0954
C114.75893.88783.04043.50502.53492.20691.49781.09141.09541.0954

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 179.536 C2 C3 C5 177.538
C3 C5 H4 115.816 C3 C5 C7 124.622
H4 C5 C7 119.562 C5 C7 H6 117.588
C5 C7 C11 126.129 H6 C7 C11 116.283
C7 C11 H8 111.350 C7 C11 H9 110.584
C7 C11 H10 110.584 H8 C11 H9 108.615
H8 C11 H10 108.615 H9 C11 H10 106.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability