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7.10 Coupled-Cluster Excited-State and Open-Shell Methods

7.10.1 Introduction

(February 4, 2022)

EOM-CC and most of the CI codes are part of CCMAN and CCMAN2. CCMAN is a legacy code which is being phased out. All new developments and performance-enhancing features are implemented in CCMAN2. Some options behave differently in the two modules. Below we make an effort to mark which features are available in legacy code only.