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	hartrees
Energy at 0K	-350.974863
Energy at 298.15K
HF Energy	-350.136347
Nuclear repulsion energy	164.437095

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	Σ_g	2435	2297	0.00	375.21	0.33	0.49
2	Σ_g	1447	1365	0.00	37.77	0.33	0.50
3	Σ_g	557	525	0.00	4.73	0.22	0.36
4	Σ_u	2322	2190	316.35	0.00	0.00	0.00
5	Σ_u	1080	1018	255.67	0.00	0.00	0.00
6	Π_g	480	453	0.00	23.04	0.75	0.86
6	Π_g	480	453	0.00	23.04	0.75	0.86
7	Π_g	291	274	0.00	14.53	0.75	0.86
7	Π_g	291	274	0.00	14.53	0.75	0.86
8	Π_u	332	313	2.14	0.00	0.00	0.00
8	Π_u	332	313	2.14	0.00	0.00	0.00
9	Π_u	117	110	0.13	0.00	0.00	0.00
9	Π_u	117	110	0.13	0.00	0.00	0.00

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.687
C2	0.000	0.000	-0.687
C3	0.000	0.000	1.904
C4	0.000	0.000	-1.904
F5	0.000	0.000	3.198
F6	0.000	0.000	-3.198

	C1	C2	C3	C4	F5	F6
C1		1.3742	1.2165	2.5907	2.5106	3.8848
C2	1.3742		2.5907	1.2165	3.8848	2.5106
C3	1.2165	2.5907		3.8071	1.2941	5.1013
C4	2.5907	1.2165	3.8071		5.1013	1.2941
F5	2.5106	3.8848	1.2941	5.1013		6.3954
F6	3.8848	2.5106	5.1013	1.2941	6.3954

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
C1	C2	C4	180.000		C1	C3	F5	180.000
C2	C1	C3	180.000		C2	C4	F6	180.000

All results from a given calculation for C₄F₂ (difluorobutadiyne)

using model chemistry: MP2/6-31G*

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C4F2 (difluorobutadiyne)

using model chemistry: MP2/6-31G*

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)