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	hartrees
Energy at 0K	-262.561256
Energy at 298.15K	-262.562292
HF Energy	-261.572514
Nuclear repulsion energy	161.709651

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3232	3068	0.00
2	A_g	2166	2057	0.00
3	A_g	1654	1570	0.00
4	A_g	1322	1255	0.00
5	A_g	1024	972	0.00
6	A_g	526	499	0.00
7	A_g	243	231	0.00
8	A_u	989	940	48.71
9	A_u	537	510	2.10
10	A_u	124	118	15.11
11	B_g	855	812	0.00
12	B_g	366	348	0.00
13	B_u	3236	3073	9.37
14	B_u	2184	2074	12.06
15	B_u	1286	1221	0.83
16	B_u	1020	969	3.71
17	B_u	517	490	0.95
18	B_u	131	124	18.07

Atom	x (Å)	y (Å)
C1	-0.338	0.582
C2	0.338	-0.582
C3	0.338	1.834
C4	-0.338	-1.834
N5	0.880	2.876
N6	-0.880	-2.876
H7	-1.419	0.595
H8	1.419	-0.595

	C1	C2	C3	C4	N5	N6	H7	H8
C1		1.3458	1.4239	2.4159	2.5976	3.4994	1.0812	2.1155
C2	1.3458		2.4159	1.4239	3.4994	2.5976	2.1155	1.0812
C3	1.4239	2.4159		3.7305	1.1738	4.8650	2.1506	2.6593
C4	2.4159	1.4239	3.7305		4.8650	1.1738	2.6593	2.1506
N5	2.5976	3.4994	1.1738	4.8650		6.0146	3.2385	3.5126
N6	3.4994	2.5976	4.8650	1.1738	6.0146		3.5126	3.2385
H7	1.0812	2.1155	2.1506	2.6593	3.2385	3.5126		3.0785
H8	2.1155	1.0812	2.6593	2.1506	3.5126	3.2385	3.0785

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	121.425	C1	C2	H8	120.921
C1	C3	N5	179.099	C2	C1	C3	121.425
C2	C1	H7	120.921	C2	C4	N6	179.099
C3	C1	H7	117.654	C4	C2	H8	117.654

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ

States and conformations

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)