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Facing Imaginary frequency in excited state
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1
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254
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April 17, 2026
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Issue with fragment job submission in Q-Chem 5.0.1 EDA calculations
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3
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260
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April 13, 2026
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Crash with NO_REORIENT
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4
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291
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April 10, 2026
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Facing large number of imaginary frequencies in LRC-wPBE functional
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3
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271
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April 7, 2026
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Issue with BR89
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3
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303
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April 2, 2026
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IRC calculation issue
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2
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344
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April 1, 2026
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NAC calculation
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3
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364
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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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324
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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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370
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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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276
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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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354
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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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304
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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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302
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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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394
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March 8, 2026
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SOC for unrestricted TDDFT
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3
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615
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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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322
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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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368
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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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407
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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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671
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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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316
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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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362
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February 25, 2026
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Thresh/s2thresh 14?
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8
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484
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February 24, 2026
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Normal Modes Question
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3
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540
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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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428
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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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358
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February 21, 2026
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Units of vibrational eigenvectors
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2
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436
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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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306
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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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303
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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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357
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February 20, 2026
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Frequency calculation speedup
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1
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495
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February 19, 2026
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