CCCBDB Elelctron affinities page 2

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composite	G2	3.950
	G3	3.904
	G3B3	3.878
	G3MP2	3.931
	G4	3.946
	CBS-Q	3.887

		STO-3G	3-21G	3-21G*	6-31G	6-31G*	6-31G**	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	cc-pV(T+d)Z	cc-pCVTZ	daug-cc-pVTZ
hartree fock	HF	-2.476	1.744	1.744	2.042	2.179	2.179	2.889	2.531	2.531	2.213		2.810	2.310	2.668	2.784	2.897	2.887	2.880	2.668	2.671	2.886
density functional	LSDA	-0.685	2.989	2.989	3.430	3.462	3.462	4.462	3.968	3.968	3.523		4.367	3.582	4.155		4.475	4.488		4.155	4.156
	BLYP	-1.379	2.176	2.176	2.623	2.648	2.648	3.746	3.139	3.139	2.719		3.596	2.766	3.358			3.760		3.358	3.360
	B1B95	-0.978	2.673	2.673	3.070	3.045	3.045	3.925	3.460	3.405	3.044		3.757	3.161	3.619		3.933	3.924		3.619	3.563
	B3LYP	-0.969	2.643	2.643	3.065	3.070	3.070	4.036	3.527	3.527	3.127		3.925	3.189	3.714	3.879	4.044	4.046	4.044	3.714	3.716
	B3LYPultrafine		2.643			3.070	3.070	4.036	3.527				3.925	3.189	3.714		4.044	4.046			3.716
	B3PW91	-0.940	2.727	2.727	3.096	3.095	3.095	3.933	3.509	3.509	3.130		3.841	3.207	3.657					3.657	3.656
	mPW1PW91	-0.940	2.740	2.740	3.100	3.092	3.092	3.927	3.493	3.493	3.122		3.823	3.203	3.638		3.928	3.921		3.659	3.637
	M06-2X	-0.806	2.866	2.866	3.226	3.219	3.219	4.031	3.643	3.643	3.261		3.972	3.322	3.823		4.033	4.085			3.826
	PBEPBE	-1.280	2.344	2.344	2.745	2.756	2.756	3.756	3.202	3.202	2.807		3.612	2.872	3.393		3.757	3.764		3.393	3.392
	PBEPBEultrafine		2.344			2.756	2.756	3.756	3.202				3.612	2.872	3.393		3.757	3.764			3.392
	PBE1PBE	-1.014	2.688	2.688	3.058	3.045	3.045	3.898	3.448	3.448	3.079		3.794	3.160	3.603		3.899	3.897			3.603
	HSEh1PBE	-1.030	2.539	2.668	3.039	3.028	3.028	3.753	3.440	3.440	3.064		3.791	3.142	3.463		3.888	3.888			3.597
	TPSSh		2.558	2.558	2.920	2.928	2.928	3.776	3.337		2.947		3.673	3.028	3.484		3.769	3.775			3.484
	wB97X-D			2.853		3.211		4.075		3.623			3.964	3.975	3.765			4.053
	B97D3		2.387			2.773		3.735		3.213		3.753	3.603		3.393			3.740
		STO-3G	3-21G	3-21G*	6-31G	6-31G*	6-31G**	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	cc-pV(T+d)Z	cc-pCVTZ	daug-cc-pVTZ
Moller Plesset perturbation	MP2	-0.898	2.980	2.980	3.577	3.561	3.561	4.499	3.987	3.987	3.806		4.332	3.738	4.346	4.587	4.655	4.730	4.773	4.346	4.348
	MP2=FULL	-0.897	2.983	2.983	3.580	3.556	3.556	4.495	3.990	3.990	3.790		4.332	3.739	4.328	4.576	4.655	4.702	4.760	4.328	4.344
	MP3					3.347		3.207					4.055	3.532	4.121						4.122
	MP3=FULL					3.343		4.194					4.054	3.533	4.107						4.119
	MP4		2.685			3.379				3.826			4.169	3.559	4.197		4.489	4.578			4.201
	MP4=FULL		2.687			3.374				3.827				3.558	4.180		4.487	4.551			4.200
	B2PLYP	-1.474	2.359	2.359	2.822	2.880	2.880	3.837	3.335	3.335	3.002		3.729	3.014	3.580		3.891	3.932			3.586
	B2PLYP=FULL	-1.474	2.359	2.359	2.822	2.881	2.881	3.838	3.337	3.337	3.003		3.730	3.015	3.582		3.892	3.933			3.589
Configuration interaction	CID		2.509	2.509	3.017	3.172			3.579												3.883
Configuration interaction	CISD		2.112	2.112	2.579	2.904			3.331												3.669
		STO-3G	3-21G	3-21G*	6-31G	6-31G*	6-31G**	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	cc-pV(T+d)Z	cc-pCVTZ	daug-cc-pVTZ
Quadratic configuration interaction	QCISD		1.691	1.691	2.173	2.575	2.575	3.475	3.034	3.034	2.886		3.364	2.751	3.423		3.632	3.767		3.423	3.433
	QCISD(T)					2.566							3.379	2.746	3.419		3.680	3.797			3.427
	QCISD(T)=FULL					2.567		3.508						2.747	3.424	3.667	3.681	3.799	3.837		3.435
	QCISD(TQ)					2.511		3.452						2.691	3.377	3.620	3.622	3.750
	QCISD(TQ)=FULL					2.514		3.454						2.693	3.386	3.632	3.624	3.758
Coupled Cluster	CCD		2.589	2.589	3.133	3.313	3.313	4.178	3.741	3.741	3.588		4.038	3.502	4.090		4.351	4.420			4.092
	CCSD					2.654					2.962		3.442	2.834	3.497	3.724	3.710	3.839	3.876		3.507
	CCSD=FULL					2.656					2.965		3.447	2.836	3.503	3.735	3.711	3.841	3.885		3.520
	CCSD(T)					2.632							3.448	2.813	3.496	3.738	3.746	3.873	3.910	3.496	3.505
	CCSD(T)=FULL					2.634							3.452	2.814	3.500	3.746	3.747	3.874	3.916	3.500	3.513
		STO-3G	3-21G	3-21G*	6-31G	6-31G*	6-31G**	6-31+G**	6-311G*	6-311G**	6-31G(2df,p)	6-311+G(3df,2p)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	cc-pV(T+d)Z	cc-pCVTZ	daug-cc-pVTZ

		CEP-31G	CEP-31G*	CEP-121G	CEP-121G*	LANL2DZ	SDD	cc-pVTZ-PP	aug-cc-pVTZ-PP	Def2TZVPP
hartree fock	HF	2.440	2.599	2.498	2.686	2.342	2.352			2.804
density functional	B3LYP	3.558	3.546	3.645	3.654	3.452	3.447			3.908
density functional	PBEPBE									3.594
Moller Plesset perturbation	MP2	4.198	4.146	4.339	4.223	4.085	4.109			4.533

	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 Electron Affininty for CN (Cyano radical)