TY - JOUR TI - A new hybrid exchange–correlation functional using the Coulomb-attenuating method (CAM-B3LYP) AU - Yanai, Takeshi AU - Tew, David P AU - Handy, Nicholas C T2 - Chemical Physics Letters AB - A new hybrid exchange–correlation functional named CAM-B3LYP is proposed. It combines the hybrid qualities of B3LYP and the long-range correction presented by Tawada et al. [J. Chem. Phys., in press]. We demonstrate that CAM-B3LYP yields atomization energies of similar quality to those from B3LYP, while also performing well for charge transfer excitations in a dipeptide model, which B3LYP underestimates enormously. The CAM-B3LYP functional comprises of 0.19 Hartree–Fock (HF) plus 0.81 Becke 1988 (B88) exchange interaction at short-range, and 0.65 HF plus 0.35 B88 at long-range. The intermediate region is smoothly described through the standard error function with parameter 0.33. DA - 2004/07/21/ PY - 2004 DO - 10.1016/j.cplett.2004.06.011 VL - 393 IS - 1 SP - 51 EP - 57 J2 - Chemical Physics Letters SN - 0009-2614 UR - https://www.sciencedirect.com/science/article/pii/S0009261404008620 ER -