CCCBDB Ionization Energy page 2

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		3-21G	3-21G*	6-31G*	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	aug-cc-pVTZ	daug-cc-pVTZ
hartree fock	HF			7.398										7.626
density functional	BLYP			8.944
	B3LYP							8.946
	M06-2X		8.619
	TPSSh			8.500	9.143			8.500				9.040
	wB97X-D		7.920	8.670	9.353		8.933			9.223	9.353	9.307	9.325
	B97D3	8.881		9.125	9.749		9.271		9.663	9.487		9.597	9.625
		3-21G	3-21G*	6-31G*	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	aug-cc-pVTZ	daug-cc-pVTZ
Moller Plesset perturbation	MP2			8.268		7.869
	MP3				8.379
	MP3=FULL			8.371	8.842
	B2PLYP											9.133
		3-21G	3-21G*	6-31G*	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	aug-cc-pVTZ	daug-cc-pVTZ

		CEP-31G	CEP-31G*	CEP-121G	CEP-121G*	LANL2DZ	SDD	cc-pVTZ-PP	aug-cc-pVTZ-PP	Def2TZVPP
hartree fock	HF									7.636
density functional	B3LYP									9.423
density functional	PBEPBE									9.403
Moller Plesset perturbation	MP2									8.822

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Calculated Ionization Energy for Zn (Zinc atom)