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	hartrees
Energy at 0K	-351.163975
Energy at 298.15K
HF Energy	-350.272656
Nuclear repulsion energy	168.142627

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2637	2437	0.00
2	Σ_g	1503	1388	0.00
3	Σ_g	582	537	0.00
4	Σ_u	2511	2321	433.43
5	Σ_u	1160	1072	335.51
6	Π_g	596	551	0.00
6	Π_g	596	551	0.00
7	Π_g	357	330	0.00
7	Π_g	357	330	0.00
8	Π_u	490	453	2.99
8	Π_u	490	453	2.99
9	Π_u	117	108	0.34
9	Π_u	117	108	0.34

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.689
C2	0.000	0.000	-0.689
C3	0.000	0.000	1.870
C4	0.000	0.000	-1.870
F5	0.000	0.000	3.129
F6	0.000	0.000	-3.129

	C1	C2	C3	C4	F5	F6
C1		1.3784	1.1805	2.5589	2.4397	3.8181
C2	1.3784		2.5589	1.1805	3.8181	2.4397
C3	1.1805	2.5589		3.7395	1.2592	4.9987
C4	2.5589	1.1805	3.7395		4.9987	1.2592
F5	2.4397	3.8181	1.2592	4.9987		6.2578
F6	3.8181	2.4397	4.9987	1.2592	6.2578

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: CID/6-311+G(3df,2p)

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: CID/6-311+G(3df,2p)

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)