Published April 29, 2026 | Version v1.0
Dataset Open

HAYSEG

  • 1. University of Strathclyde

Description

Excited state energies, ORCA output file and optimised ground state geometry of HAYSEG. Full dataset available here: BenchmarkSet1500.csv.

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Additional details

Related works

Is supplement to
Journal article: 10.1107/S160053680503549X (DOI)

Domain Specific Metadata

 

Excited States Properties

Property Value
E(S1) SA-CASSCF / eV 3.137
E(S2) SA-CASSCF / eV 5.971
E(T1) SA-CASSCF / eV 2.982
E(T2) SA-CASSCF / eV 3.248
f(S1) SA-CASSCF 8.69e-06
f(S2) SA-CASSCF 0.635913157
E(S1) SC-NEVPT2 / eV 3.242
E(S2) SC-NEVPT2 / eV 4.72
E(T1) SC-NEVPT2 / eV 3.13
E(T2) SC-NEVPT2 / eV 3.421
f(S1) SC-NEVPT2 8.98e-06
f(S2) SC-NEVPT2 0.502615943

Molecule Identifiers

Property Value
CCDC ID HAYSEG
SMILES COC(=O)NC(=S)Nc1nc(C)cc(C)n1
InChI InChI=1S/C9H12N4O2S/c1-5-4-6(2)11-7(10-5)12-8(16)13-9(14)15-3/h4H,1-3H3,(H2,10,11,12,13,14,16)
Molecular Formula C9 H12 N4 O2 S1
CCDC URL https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=HAYSEG&DatabaseToSearch=Published

Electronic Structure Methodology

Property Value
Electronic structure methodology SA-CASSCF
Correlation method SC-NEVPT2
Active Space 8,8
Basis Set Def2-TZVP
Excited State Software ORCA
Ground state functional B3LYP
Ground state basis set 6-31G*