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	hartrees
Energy at 0K	-262.363521
Energy at 298.15K	-262.364487
HF Energy	-261.493883
Nuclear repulsion energy	160.940265

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3276	3076	0.00
2	A_g	2173	2041	0.00
3	A_g	1674	1572	0.00
4	A_g	1347	1265	0.00
5	A_g	1039	976	0.00
6	A_g	528	496	0.00
7	A_g	245	230	0.00
8	A_u	983	923	56.44
9	A_u	496	466	1.63
10	A_u	121	114	14.80
11	B_g	833	782	0.00
12	B_g	347	326	0.00
13	B_u	3280	3081	7.43
14	B_u	2191	2058	10.28
15	B_u	1316	1236	0.42
16	B_u	1029	966	4.56
17	B_u	517	486	1.19
18	B_u	132	124	18.01

Atom	x (Å)	y (Å)
C1	-0.340	0.584
C2	0.340	-0.584
C3	0.340	1.839
C4	-0.340	-1.839
N5	0.887	2.889
N6	-0.887	-2.889
H7	-1.422	0.600
H8	1.422	-0.600

	C1	C2	C3	C4	N5	N6	H7	H8
C1		1.3510	1.4277	2.4231	2.6116	3.5158	1.0819	2.1225
C2	1.3510		2.4231	1.4277	3.5158	2.6116	2.1225	1.0819
C3	1.4277	2.4231		3.7409	1.1839	4.8850	2.1536	2.6687
C4	2.4231	1.4277	3.7409		4.8850	1.1839	2.6687	2.1536
N5	2.6116	3.5158	1.1839	4.8850		6.0446	3.2511	3.5301
N6	3.5158	2.6116	4.8850	1.1839	6.0446		3.5301	3.2511
H7	1.0819	2.1225	2.1536	2.6687	3.2511	3.5301		3.0864
H8	2.1225	1.0819	2.6687	2.1536	3.5301	3.2511	3.0864

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C4	121.364	C1	C2	H8	121.079
C1	C3	N5	179.105	C2	C1	C3	121.364
C2	C1	H7	121.079	C2	C4	N6	179.105
C3	C1	H7	117.557	C4	C2	H8	117.557

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**

States and conformations

All results from a given calculation for C₄H₂N₂ (Fumaronitrile)