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	hartrees
Energy at 0K	-262.370449
Energy at 298.15K	-262.371384
HF Energy	-261.482453
Nuclear repulsion energy	160.383489

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3209	3064
2	A_g	2168	2070
3	A_g	1656	1582
4	A_g	1337	1276
5	A_g	1027	981
6	A_g	522	499
7	A_g	242	231
8	A_u	965	921
9	A_u	513	490
10	A_u	122	116
11	B_g	827	790
12	B_g	352	336
13	B_u	3212	3067
14	B_u	2185	2086
15	B_u	1309	1250
16	B_u	1014	968
17	B_u	511	487
18	B_u	130	124

Atom	x (Å)	y (Å)
C1	-0.342	0.585
C2	0.342	-0.585
C3	0.342	1.849
C4	-0.342	-1.849
N5	0.895	2.896
N6	-0.895	-2.896
H7	-1.431	0.604
H8	1.431	-0.604

	C1	C2	C3	C4	N5	N6	H7	H8
C1		1.3553	1.4363	2.4341	2.6205	3.5247	1.0900	2.1351
C2	1.3553		2.4341	1.4363	3.5247	2.6205	2.1351	1.0900
C3	1.4363	2.4341		3.7602	1.1842	4.9030	2.1660	2.6844
C4	2.4341	1.4363	3.7602		4.9030	1.1842	2.6844	2.1660
N5	2.6205	3.5247	1.1842	4.9030		6.0617	3.2654	3.5409
N6	3.5247	2.6205	4.9030	1.1842	6.0617		3.5409	3.2654
H7	1.0900	2.1351	2.1660	2.6844	3.2654	3.5409		3.1075
H8	2.1351	1.0900	2.6844	2.1660	3.5409	3.2654	3.1075

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	121.342	C1	C2	H8	121.269
C1	C3	N5	179.479	C2	C1	C3	121.342
C2	C1	H7	121.269	C2	C4	N6	179.479
C3	C1	H7	117.389	C4	C2	H8	117.389

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)

using model chemistry: MP4/6-31G*

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: MP4/6-31G*

States and conformations

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)