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	hartrees
Energy at 0K	-262.476930
Energy at 298.15K	-262.477919
HF Energy	-261.541374
Nuclear repulsion energy	160.564579

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3198	3101
2	A_g	2143	2078
3	A_g	1630	1581
4	A_g	1312	1273
5	A_g	1009	979
6	A_g	520	504
7	A_g	244	237
8	A_u	960	930
9	A_u	526	511
10	A_u	123	119
11	B_g	821	796
12	B_g	364	353
13	B_u	3202	3105
14	B_u	2161	2096
15	B_u	1281	1242
16	B_u	1000	969
17	B_u	513	497
18	B_u	131	127

Atom	x (Å)	y (Å)
C1	-0.341	0.586
C2	0.341	-0.586
C3	0.341	1.851
C4	-0.341	-1.851
N5	0.890	2.894
N6	-0.890	-2.894
H7	-1.430	0.606
H8	1.430	-0.606

	C1	C2	C3	C4	N5	N6	H7	H8
C1		1.3564	1.4371	2.4367	2.6159	3.5230	1.0884	2.1346
C2	1.3564		2.4367	1.4371	3.5230	2.6159	2.1346	1.0884
C3	1.4371	2.4367		3.7637	1.1788	4.9018	2.1647	2.6867
C4	2.4367	1.4371	3.7637		4.9018	1.1788	2.6867	2.1647
N5	2.6159	3.5230	1.1788	4.9018		6.0555	3.2583	3.5411
N6	3.5230	2.6159	4.9018	1.1788	6.0555		3.5411	3.2583
H7	1.0884	2.1346	2.1647	2.6867	3.2583	3.5411		3.1053
H8	2.1346	1.0884	2.6867	2.1647	3.5411	3.2583	3.1053

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	121.419	C1	C2	H8	121.259
C1	C3	N5	179.383	C2	C1	C3	121.419
C2	C1	H7	121.259	C2	C4	N6	179.383
C3	C1	H7	117.322	C4	C2	H8	117.322

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)

using model chemistry: MP4/6-311G**

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: MP4/6-311G**

States and conformations

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)