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	hartrees
Energy at 0K	-262.408411
Energy at 298.15K	-262.409455
HF Energy	-261.542380
Nuclear repulsion energy	161.123444

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3227	3066	0.00
2	A_g	2167	2059	0.00
3	A_g	1651	1569	0.00
4	A_g	1323	1257	0.00
5	A_g	1025	974	0.00
6	A_g	529	502	0.00
7	A_g	248	235	0.00
8	A_u	979	930	53.17
9	A_u	538	511	2.35
10	A_u	124	118	13.81
11	B_g	839	797	0.00
12	B_g	371	352	0.00
13	B_u	3232	3071	7.44
14	B_u	2184	2075	18.14
15	B_u	1290	1225	0.65
16	B_u	1020	969	4.47
17	B_u	522	496	1.08
18	B_u	133	126	16.79

Atom	x (Å)	y (Å)
C1	-0.340	0.584
C2	0.340	-0.584
C3	0.340	1.841
C4	-0.340	-1.841
N5	0.886	2.884
N6	-0.886	-2.884
H7	-1.426	0.600
H8	1.426	-0.600

	C1	C2	C3	C4	N5	N6	H7	H8
C1		1.3517	1.4289	2.4256	2.6064	3.5115	1.0860	2.1255
C2	1.3517		2.4256	1.4289	3.5115	2.6064	2.1255	1.0860
C3	1.4289	2.4256		3.7448	1.1775	4.8822	2.1583	2.6715
C4	2.4256	1.4289	3.7448		4.8822	1.1775	2.6715	2.1583
N5	2.6064	3.5115	1.1775	4.8822		6.0349	3.2502	3.5256
N6	3.5115	2.6064	4.8822	1.1775	6.0349		3.5256	3.2502
H7	1.0860	2.1255	2.1583	2.6715	3.2502	3.5256		3.0931
H8	2.1255	1.0860	2.6715	2.1583	3.5256	3.2502	3.0931

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	121.434	C1	C2	H8	120.983
C1	C3	N5	179.244	C2	C1	C3	121.434
C2	C1	H7	120.983	C2	C4	N6	179.244
C3	C1	H7	117.583	C4	C2	H8	117.583

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)

using model chemistry: MP2/6-311G**

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 C4H2N2 (Fumaronitrile)

using model chemistry: MP2/6-311G**

States and conformations

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)