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	hartrees
Energy at 0K	-263.969415
Energy at 298.15K	-263.975047
HF Energy	-263.969415
Nuclear repulsion energy	206.334207

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3145	3093	9.95
2	A₁	3118	3067	1.53
3	A₁	1576	1550	5.27
4	A₁	1446	1422	1.09
5	A₁	1194	1174	0.05
6	A₁	1143	1124	0.00
7	A₁	1072	1054	10.22
8	A₁	989	972	7.08
9	A₁	660	649	2.52
10	A₂	975	959	0.00
11	A₂	910	895	0.00
12	A₂	746	733	0.00
13	A₂	347	341	0.00
14	B₁	938	923	0.00
15	B₁	731	719	32.77
16	B₁	341	335	7.98
17	B₂	3131	3079	25.69
18	B₂	3113	3062	10.64
19	B₂	1568	1543	4.31
20	B₂	1399	1375	15.06
21	B₂	1277	1256	1.67
22	B₂	1061	1043	0.88
23	B₂	1022	1005	1.21
24	B₂	610	600	0.00

Atom	y (Å)	z (Å)
C1	0.696	1.188
C2	-0.696	1.188
C3	-1.328	-0.066
C4	1.328	-0.066
H5	1.280	2.114
H6	-1.280	2.114
H7	-2.421	-0.152
H8	2.421	-0.152
N9	0.672	-1.242
N10	-0.672	-1.242

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3923	2.3810	1.4040	1.0947	2.1821	3.3929	2.1841	2.4302	2.7889
C2	1.3923		1.4040	2.3810	2.1821	1.0947	2.1841	3.3929	2.7889	2.4302
C3	2.3810	1.4040		2.6561	3.3988	2.1804	1.0964	3.7501	2.3207	1.3468
C4	1.4040	2.3810	2.6561		2.1804	3.3988	3.7501	1.0964	1.3468	2.3207
H5	1.0947	2.1821	3.3988	2.1804		2.5593	4.3393	2.5372	3.4107	3.8826
H6	2.1821	1.0947	2.1804	3.3988	2.5593		2.5372	4.3393	3.8826	3.4107
H7	3.3929	2.1841	1.0964	3.7501	4.3393	2.5372		4.8421	3.2799	2.0607
H8	2.1841	3.3929	3.7501	1.0964	2.5372	4.3393	4.8421		2.0607	3.2799
N9	2.4302	2.7889	2.3207	1.3468	3.4107	3.8826	3.2799	2.0607		1.3447
N10	2.7889	2.4302	1.3468	2.3207	3.8826	3.4107	2.0607	3.2799	1.3447

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.750	C1	C2	H6	122.211
C1	C4	H8	121.255	C1	C4	N9	124.115
C2	C1	C4	116.750	C2	C1	H5	122.211
C2	C3	H7	121.255	C2	C3	N10	124.115
C3	C2	H6	121.039	C3	N10	N9	119.135
C4	C1	H5	121.039	C4	N9	N10	119.135
H7	C3	N10	114.630	H8	C4	N9	114.630

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: PBEPBEultrafine/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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Number	Element	Mulliken
1	C	-0.122
2	C	-0.122
3	C	0.021
4	C	0.021
5	H	0.163
6	H	0.163
7	H	0.167
8	H	0.167
9	N	-0.229
10	N	-0.229

	x	y	z
x	3.053	0.000	0.000
y	0.000	9.553	-0.005
z	0.000	-0.005	8.670

<r²>	117.060
(<r²>)^1/2	10.819

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: PBEPBEultrafine/6-31G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)