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	hartrees
Energy at 0K	-262.327942
Energy at 298.15K	-262.328945
HF Energy	-261.502305
Nuclear repulsion energy	159.975336

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3240	3086	0.00
2	A_g	2156	2053	0.00
3	A_g	1658	1580	0.00
4	A_g	1310	1248	0.00
5	A_g	1023	974	0.00
6	A_g	523	498	0.00
7	A_g	243	231	0.00
8	A_u	978	932	46.89
9	A_u	531	506	1.93
10	A_u	123	117	12.94
11	B_g	833	793	0.00
12	B_g	364	347	0.00
13	B_u	3244	3090	7.60
14	B_u	2173	2070	19.38
15	B_u	1272	1212	0.64
16	B_u	1023	974	4.58
17	B_u	512	487	1.19
18	B_u	130	124	15.42

Atom	x (Å)	y (Å)
C1	-0.342	0.588
C2	0.342	-0.588
C3	0.342	1.852
C4	-0.342	-1.852
N5	0.893	2.905
N6	-0.893	-2.905
H7	-1.437	0.602
H8	1.437	-0.602

	C1	C2	C3	C4	N5	N6	H7	H8
C1		1.3597	1.4370	2.4396	2.6257	3.5360	1.0950	2.1396
C2	1.3597		2.4396	1.4370	3.5360	2.6257	2.1396	1.0950
C3	1.4370	2.4396		3.7663	1.1887	4.9145	2.1735	2.6872
C4	2.4396	1.4370	3.7663		4.9145	1.1887	2.6872	2.1735
N5	2.6257	3.5360	1.1887	4.9145		6.0784	3.2757	3.5491
N6	3.5360	2.6257	4.9145	1.1887	6.0784		3.5491	3.2757
H7	1.0950	2.1396	2.1735	2.6872	3.2757	3.5491		3.1153
H8	2.1396	1.0950	2.6872	2.1735	3.5491	3.2757	3.1153

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	121.436	C1	C2	H8	120.925
C1	C3	N5	179.236	C2	C1	C3	121.436
C2	C1	H7	120.925	C2	C4	N6	179.236
C3	C1	H7	117.639	C4	C2	H8	117.639

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)

using model chemistry: MP2/cc-pVDZ

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-pVDZ

States and conformations

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)