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IRC calculation issue
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2
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284
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April 1, 2026
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NAC calculation
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3
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314
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March 27, 2026
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How to generate FCIDump file
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3
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274
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March 25, 2026
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SCF convergence problem in CDFT-CI calculation
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3
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318
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March 24, 2026
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Strange outcome in RAS-SF calculation
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0
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240
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March 17, 2026
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Speeding up ADC(2) calculations
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2
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298
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March 17, 2026
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Is it possible to print gradients of several excited states?
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3
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258
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March 14, 2026
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Memory and RICIS(D) calculations
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4
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256
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March 11, 2026
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MRSF: differences between Q-Chem and OpenQP
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0
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332
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March 8, 2026
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SOC for unrestricted TDDFT
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3
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574
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March 6, 2026
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Gradient and Hessian using CCSD and EOM-CCSD
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3
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281
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March 5, 2026
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Resolution of identity for CDFT?
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6
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318
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March 3, 2026
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ROHF energy discrepancy between Q-Chem and CFOUR
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4
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358
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February 28, 2026
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Optimal settings for large DFT calculations
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3
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636
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February 28, 2026
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Using FRAGMO with ptSS-PCM and CDFT for Vertical Electron Transfer Calculation
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3
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278
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February 26, 2026
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Geometry Optimization with SS_PCM
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1
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323
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February 25, 2026
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Thresh/s2thresh 14?
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8
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402
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February 24, 2026
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Normal Modes Question
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3
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487
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February 23, 2026
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Symmetry in CCSD(T) frequency calculation
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4
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360
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February 23, 2026
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Symmetry of EOM-EA-CCSD. Significance?
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1
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312
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February 21, 2026
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Units of vibrational eigenvectors
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2
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383
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February 20, 2026
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EOM-EA-CCSD on a Excited state
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1
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256
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February 20, 2026
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ROKS emission energy with nonequilibrium solvent
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0
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255
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February 20, 2026
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Dyson orbital using EOMCCSDT-IP
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1
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309
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February 20, 2026
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Frequency calculation speedup
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1
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442
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February 19, 2026
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What is the correct input for the GEOM_OPT_MODE
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2
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337
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February 19, 2026
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Large number of imaginary frequencies with ROKS and delta SCF
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1
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312
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February 19, 2026
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Ehrenfest Molecular Dynamics
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2
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302
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February 19, 2026
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S1 Geom optimization based on TDDFT and delta SCF approach
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11
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510
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February 18, 2026
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Q-Chem license on new MacOS
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0
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286
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February 17, 2026
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